Instruction stringlengths 45 106 | input_code stringlengths 1 13.7k | output_code stringlengths 1 13.7k |
|---|---|---|
Translate this program into VB but keep the logic exactly as in Python. | def euler(f,y0,a,b,h):
t,y = a,y0
while t <= b:
print "%6.3f %6.3f" % (t,y)
t += h
y += h * f(t,y)
def newtoncooling(time, temp):
return -0.07 * (temp - 20)
euler(newtoncooling,100,0,100,10)
| Private Sub ivp_euler(f As String, y As Double, step As Integer, end_t As Integer)
Dim t As Integer
Debug.Print " Step "; step; ": ",
Do While t <= end_t
If t Mod 10 = 0 Then Debug.Print Format(y, "0.000"),
y = y + step * Application.Run(f, y)
t = t + step
Loop
Debug.Print
End Sub
Sub analytic()
Debug.Print " Time: ",
For t = 0 To 100 Step 10
Debug.Print " "; t,
Next t
Debug.Print
Debug.Print "Analytic: ",
For t = 0 To 100 Step 10
Debug.Print Format(20 + 80 * Exp(-0.07 * t), "0.000"),
Next t
Debug.Print
End Sub
Private Function cooling(temp As Double) As Double
cooling = -0.07 * (temp - 20)
End Function
Public Sub euler_method()
Dim r_cooling As String
r_cooling = "cooling"
analytic
ivp_euler r_cooling, 100, 2, 100
ivp_euler r_cooling, 100, 5, 100
ivp_euler r_cooling, 100, 10, 100
End Sub
|
Rewrite this program in VB while keeping its functionality equivalent to the Python version. | >>> from math import floor, sqrt
>>> def non_square(n):
return n + floor(1/2 + sqrt(n))
>>>
>>> print(*map(non_square, range(1, 23)))
2 3 5 6 7 8 10 11 12 13 14 15 17 18 19 20 21 22 23 24 26 27
>>>
>>> def is_square(n):
return sqrt(n).is_integer()
>>> non_squares = map(non_square, range(1, 10 ** 6))
>>> next(filter(is_square, non_squares))
StopIteration Traceback (most recent call last)
<ipython-input-45-f32645fc1c0a> in <module>()
1 non_squares = map(non_square, range(1, 10 ** 6))
----> 2 next(filter(is_square, non_squares))
StopIteration:
| Sub Main()
Dim i&, c&, j#, s$
Const N& = 1000000
s = "values for n in the range 1 to 22 : "
For i = 1 To 22
s = s & ns(i) & ", "
Next
For i = 1 To N
j = Sqr(ns(i))
If j = CInt(j) Then c = c + 1
Next
Debug.Print s
Debug.Print c & " squares less than " & N
End Sub
Private Function ns(l As Long) As Long
ns = l + Int(1 / 2 + Sqr(l))
End Function
|
Convert this Python snippet to VB and keep its semantics consistent. | >>> from math import floor, sqrt
>>> def non_square(n):
return n + floor(1/2 + sqrt(n))
>>>
>>> print(*map(non_square, range(1, 23)))
2 3 5 6 7 8 10 11 12 13 14 15 17 18 19 20 21 22 23 24 26 27
>>>
>>> def is_square(n):
return sqrt(n).is_integer()
>>> non_squares = map(non_square, range(1, 10 ** 6))
>>> next(filter(is_square, non_squares))
StopIteration Traceback (most recent call last)
<ipython-input-45-f32645fc1c0a> in <module>()
1 non_squares = map(non_square, range(1, 10 ** 6))
----> 2 next(filter(is_square, non_squares))
StopIteration:
| Sub Main()
Dim i&, c&, j#, s$
Const N& = 1000000
s = "values for n in the range 1 to 22 : "
For i = 1 To 22
s = s & ns(i) & ", "
Next
For i = 1 To N
j = Sqr(ns(i))
If j = CInt(j) Then c = c + 1
Next
Debug.Print s
Debug.Print c & " squares less than " & N
End Sub
Private Function ns(l As Long) As Long
ns = l + Int(1 / 2 + Sqr(l))
End Function
|
Preserve the algorithm and functionality while converting the code from Python to VB. | >>> s = 'abcdefgh'
>>> n, m, char, chars = 2, 3, 'd', 'cd'
>>>
>>> s[n-1:n+m-1]
'bcd'
>>>
>>> s[n-1:]
'bcdefgh'
>>>
>>> s[:-1]
'abcdefg'
>>>
>>> indx = s.index(char)
>>> s[indx:indx+m]
'def'
>>>
>>> indx = s.index(chars)
>>> s[indx:indx+m]
'cde'
>>>
| Public Sub substring()
sentence = "the last thing the man said was the"
n = 10: m = 5
Debug.Print Mid(sentence, n, 5)
Debug.Print Right(sentence, Len(sentence) - n + 1)
Debug.Print Left(sentence, Len(sentence) - 1)
k = InStr(1, sentence, "m")
Debug.Print Mid(sentence, k, 5)
k = InStr(1, sentence, "aid")
Debug.Print Mid(sentence, k, 5)
End Sub
|
Write a version of this Python function in VB with identical behavior. | >>> def jortsort(sequence):
return list(sequence) == sorted(sequence)
>>> for data in [(1,2,4,3), (14,6,8), ['a', 'c'], ['s', 'u', 'x'], 'CVGH', 'PQRST']:
print(f'jortsort({repr(data)}) is {jortsort(data)}')
jortsort((1, 2, 4, 3)) is False
jortsort((14, 6, 8)) is False
jortsort(['a', 'c']) is True
jortsort(['s', 'u', 'x']) is True
jortsort('CVGH') is False
jortsort('PQRST') is True
>>>
| Function JortSort(s)
JortSort = True
arrPreSort = Split(s,",")
Set arrSorted = CreateObject("System.Collections.ArrayList")
For i = 0 To UBound(arrPreSort)
arrSorted.Add(arrPreSort(i))
Next
arrSorted.Sort()
For j = 0 To UBound(arrPreSort)
If arrPreSort(j) <> arrSorted(j) Then
JortSort = False
Exit For
End If
Next
End Function
WScript.StdOut.Write JortSort("1,2,3,4,5")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("1,2,3,5,4")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("a,b,c")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("a,c,b")
|
Port the following code from Python to VB with equivalent syntax and logic. | import calendar
calendar.isleap(year)
| Public Function Leap_year(year As Integer) As Boolean
Leap_year = (Month(DateSerial(year, 2, 29)) = 2)
End Function
|
Generate an equivalent VB version of this Python code. | from __future__ import print_function
from scipy.misc import factorial as fact
from scipy.misc import comb
def perm(N, k, exact=0):
return comb(N, k, exact) * fact(k, exact)
exact=True
print('Sample Perms 1..12')
for N in range(1, 13):
k = max(N-2, 1)
print('%iP%i =' % (N, k), perm(N, k, exact), end=', ' if N % 5 else '\n')
print('\n\nSample Combs 10..60')
for N in range(10, 61, 10):
k = N-2
print('%iC%i =' % (N, k), comb(N, k, exact), end=', ' if N % 50 else '\n')
exact=False
print('\n\nSample Perms 5..1500 Using FP approximations')
for N in [5, 15, 150, 1500, 15000]:
k = N-2
print('%iP%i =' % (N, k), perm(N, k, exact))
print('\nSample Combs 100..1000 Using FP approximations')
for N in range(100, 1001, 100):
k = N-2
print('%iC%i =' % (N, k), comb(N, k, exact))
|
dim i,j
Wscript.StdOut.WriteLine "-- Long Integer - Permutations - from 1 to 12"
for i=1 to 12
for j=1 to i
Wscript.StdOut.Write "P(" & i & "," & j & ")=" & perm(i,j) & " "
next
Wscript.StdOut.WriteLine ""
next
Wscript.StdOut.WriteLine "-- Float integer - Combinations from 10 to 60"
for i=10 to 60 step 10
for j=1 to i step i\5
Wscript.StdOut.Write "C(" & i & "," & j & ")=" & comb(i,j) & " "
next
Wscript.StdOut.WriteLine ""
next
Wscript.StdOut.WriteLine "-- Float integer - Permutations from 5000 to 15000"
for i=5000 to 15000 step 5000
for j=10 to 70 step 20
Wscript.StdOut.Write "C(" & i & "," & j & ")=" & perm(i,j) & " "
next
Wscript.StdOut.WriteLine ""
next
Wscript.StdOut.WriteLine "-- Float integer - Combinations from 200 to 1000"
for i=200 to 1000 step 200
for j=20 to 100 step 20
Wscript.StdOut.Write "P(" & i & "," & j & ")=" & comb(i,j) & " "
next
Wscript.StdOut.WriteLine ""
next
function perm(x,y)
dim i,z
z=1
for i=x-y+1 to x
z=z*i
next
perm=z
end function
function fact(x)
dim i,z
z=1
for i=2 to x
z=z*i
next
fact=z
end function
function comb(byval x,byval y)
if y>x then
comb=0
elseif x=y then
comb=1
else
if x-y<y then y=x-y
comb=perm(x,y)/fact(y)
end if
end function
|
Convert the following code from Python to VB, ensuring the logic remains intact. | n=13
print(sorted(range(1,n+1), key=str))
| Public Function sortlexicographically(N As Integer)
Dim arrList As Object
Set arrList = CreateObject("System.Collections.ArrayList")
For i = 1 To N
arrList.Add CStr(i)
Next i
arrList.Sort
Dim item As Variant
For Each item In arrList
Debug.Print item & ", ";
Next
End Function
Public Sub main()
Call sortlexicographically(13)
End Sub
|
Produce a language-to-language conversion: from Python to VB, same semantics. | TENS = [None, None, "twenty", "thirty", "forty",
"fifty", "sixty", "seventy", "eighty", "ninety"]
SMALL = ["zero", "one", "two", "three", "four", "five",
"six", "seven", "eight", "nine", "ten", "eleven",
"twelve", "thirteen", "fourteen", "fifteen",
"sixteen", "seventeen", "eighteen", "nineteen"]
HUGE = [None, None] + [h + "illion"
for h in ("m", "b", "tr", "quadr", "quint", "sext",
"sept", "oct", "non", "dec")]
def nonzero(c, n, connect=''):
return "" if n == 0 else connect + c + spell_integer(n)
def last_and(num):
if ',' in num:
pre, last = num.rsplit(',', 1)
if ' and ' not in last:
last = ' and' + last
num = ''.join([pre, ',', last])
return num
def big(e, n):
if e == 0:
return spell_integer(n)
elif e == 1:
return spell_integer(n) + " thousand"
else:
return spell_integer(n) + " " + HUGE[e]
def base1000_rev(n):
while n != 0:
n, r = divmod(n, 1000)
yield r
def spell_integer(n):
if n < 0:
return "minus " + spell_integer(-n)
elif n < 20:
return SMALL[n]
elif n < 100:
a, b = divmod(n, 10)
return TENS[a] + nonzero("-", b)
elif n < 1000:
a, b = divmod(n, 100)
return SMALL[a] + " hundred" + nonzero(" ", b, ' and')
else:
num = ", ".join([big(e, x) for e, x in
enumerate(base1000_rev(n)) if x][::-1])
return last_and(num)
if __name__ == '__main__':
for n in (0, -3, 5, -7, 11, -13, 17, -19, 23, -29):
print('%+4i -> %s' % (n, spell_integer(n)))
print('')
n = 201021002001
while n:
print('%-12i -> %s' % (n, spell_integer(n)))
n //= -10
print('%-12i -> %s' % (n, spell_integer(n)))
print('')
| Public twenties As Variant
Public decades As Variant
Public orders As Variant
Private Sub init()
twenties = [{"zero","one","two","three","four","five","six","seven","eight","nine","ten", "eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"}]
decades = [{"twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"}]
orders = [{1E15,"quadrillion"; 1E12,"trillion"; 1E9,"billion"; 1E6,"million"; 1E3,"thousand"}]
End Sub
Private Function Twenty(N As Variant)
Twenty = twenties(N Mod 20 + 1)
End Function
Private Function Decade(N As Variant)
Decade = decades(N Mod 10 - 1)
End Function
Private Function Hundred(N As Variant)
If N < 20 Then
Hundred = Twenty(N)
Exit Function
Else
If N Mod 10 = 0 Then
Hundred = Decade((N \ 10) Mod 10)
Exit Function
End If
End If
Hundred = Decade(N \ 10) & "-" & Twenty(N Mod 10)
End Function
Private Function Thousand(N As Variant, withand As String)
If N < 100 Then
Thousand = withand & Hundred(N)
Exit Function
Else
If N Mod 100 = 0 Then
Thousand = withand & Twenty(WorksheetFunction.Floor_Precise(N / 100)) & " hundred"
Exit Function
End If
End If
Thousand = Twenty(N \ 100) & " hundred and " & Hundred(N Mod 100)
End Function
Private Function Triplet(N As Variant)
Dim Order, High As Variant, Low As Variant
Dim Name As String, res As String
For i = 1 To UBound(orders)
Order = orders(i, 1)
Name = orders(i, 2)
High = WorksheetFunction.Floor_Precise(N / Order)
Low = N - High * Order
If High <> 0 Then
res = res & Thousand(High, "") & " " & Name
End If
N = Low
If Low = 0 Then Exit For
If Len(res) And High <> 0 Then
res = res & ", "
End If
Next i
If N <> 0 Or res = "" Then
res = res & Thousand(WorksheetFunction.Floor_Precise(N), IIf(res = "", "", "and "))
N = N - Int(N)
If N > 0.000001 Then
res = res & " point"
For i = 1 To 10
n_ = WorksheetFunction.Floor_Precise(N * 10.0000001)
res = res & " " & twenties(n_ + 1)
N = N * 10 - n_
If Abs(N) < 0.000001 Then Exit For
Next i
End If
End If
Triplet = res
End Function
Private Function spell(N As Variant)
Dim res As String
If N < 0 Then
res = "minus "
N = -N
End If
res = res & Triplet(N)
spell = res
End Function
Private Function smartp(N As Variant)
Dim res As String
If N = WorksheetFunction.Floor_Precise(N) Then
smartp = CStr(N)
Exit Function
End If
res = CStr(N)
If InStr(1, res, ".") Then
res = Left(res, InStr(1, res, "."))
End If
smartp = res
End Function
Sub Main()
Dim si As Variant
init
Samples1 = [{99, 300, 310, 417, 1501, 12609, 200000000000100, 999999999999999, -123456787654321,102003000400005,1020030004,102003,102,1,0,-1,-99, -1501,1234,12.34}]
Samples2 = [{10000001.2,1E-3,-2.7182818, 201021002001,-20102100200,2010210020,-201021002,20102100,-2010210, 201021,-20102,2010,-201,20,-2}]
For i = 1 To UBound(Samples1)
si = Samples1(i)
Debug.Print Format(smartp(si), "@@@@@@@@@@@@@@@@"); " "; spell(si)
Next i
For i = 1 To UBound(Samples2)
si = Samples2(i)
Debug.Print Format(smartp(si), "@@@@@@@@@@@@@@@@"); " "; spell(si)
Next i
End Sub
|
Change the following Python code into VB without altering its purpose. | def shell(seq):
inc = len(seq) // 2
while inc:
for i, el in enumerate(seq[inc:], inc):
while i >= inc and seq[i - inc] > el:
seq[i] = seq[i - inc]
i -= inc
seq[i] = el
inc = 1 if inc == 2 else inc * 5 // 11
| Sub arrShellSort(ByVal arrData As Variant)
Dim lngHold, lngGap As Long
Dim lngCount, lngMin, lngMax As Long
Dim varItem As Variant
lngMin = LBound(arrData)
lngMax = UBound(arrData)
lngGap = lngMin
Do While (lngGap < lngMax)
lngGap = 3 * lngGap + 1
Loop
Do While (lngGap > 1)
lngGap = lngGap \ 3
For lngCount = lngGap + lngMin To lngMax
varItem = arrData(lngCount)
lngHold = lngCount
Do While ((arrData(lngHold - lngGap) > varItem))
arrData(lngHold) = arrData(lngHold - lngGap)
lngHold = lngHold - lngGap
If (lngHold < lngMin + lngGap) Then Exit Do
Loop
arrData(lngHold) = varItem
Next
Loop
arrShellSort = arrData
End Sub
|
Produce a language-to-language conversion: from Python to VB, same semantics. | from collections import deque
some_list = deque(["a", "b", "c"])
print(some_list)
some_list.appendleft("Z")
print(some_list)
for value in reversed(some_list):
print(value)
| Public Class DoubleLinkList(Of T)
Private m_Head As Node(Of T)
Private m_Tail As Node(Of T)
Public Sub AddHead(ByVal value As T)
Dim node As New Node(Of T)(Me, value)
If m_Head Is Nothing Then
m_Head = Node
m_Tail = m_Head
Else
node.Next = m_Head
m_Head = node
End If
End Sub
Public Sub AddTail(ByVal value As T)
Dim node As New Node(Of T)(Me, value)
If m_Tail Is Nothing Then
m_Head = node
m_Tail = m_Head
Else
node.Previous = m_Tail
m_Tail = node
End If
End Sub
Public ReadOnly Property Head() As Node(Of T)
Get
Return m_Head
End Get
End Property
Public ReadOnly Property Tail() As Node(Of T)
Get
Return m_Tail
End Get
End Property
Public Sub RemoveTail()
If m_Tail Is Nothing Then Return
If m_Tail.Previous Is Nothing Then
m_Head = Nothing
m_Tail = Nothing
Else
m_Tail = m_Tail.Previous
m_Tail.Next = Nothing
End If
End Sub
Public Sub RemoveHead()
If m_Head Is Nothing Then Return
If m_Head.Next Is Nothing Then
m_Head = Nothing
m_Tail = Nothing
Else
m_Head = m_Head.Next
m_Head.Previous = Nothing
End If
End Sub
End Class
Public Class Node(Of T)
Private ReadOnly m_Value As T
Private m_Next As Node(Of T)
Private m_Previous As Node(Of T)
Private ReadOnly m_Parent As DoubleLinkList(Of T)
Public Sub New(ByVal parent As DoubleLinkList(Of T), ByVal value As T)
m_Parent = parent
m_Value = value
End Sub
Public Property [Next]() As Node(Of T)
Get
Return m_Next
End Get
Friend Set(ByVal value As Node(Of T))
m_Next = value
End Set
End Property
Public Property Previous() As Node(Of T)
Get
Return m_Previous
End Get
Friend Set(ByVal value As Node(Of T))
m_Previous = value
End Set
End Property
Public ReadOnly Property Value() As T
Get
Return m_Value
End Get
End Property
Public Sub InsertAfter(ByVal value As T)
If m_Next Is Nothing Then
m_Parent.AddTail(value)
ElseIf m_Previous Is Nothing Then
m_Parent.AddHead(value)
Else
Dim node As New Node(Of T)(m_Parent, value)
node.Previous = Me
node.Next = Me.Next
Me.Next.Previous = node
Me.Next = node
End If
End Sub
Public Sub Remove()
If m_Next Is Nothing Then
m_Parent.RemoveTail()
ElseIf m_Previous Is Nothing Then
m_Parent.RemoveHead()
Else
m_Previous.Next = Me.Next
m_Next.Previous = Me.Previous
End If
End Sub
End Class
|
Convert this Python snippet to VB and keep its semantics consistent. | import collections, sys
def filecharcount(openfile):
return sorted(collections.Counter(c for l in openfile for c in l).items())
f = open(sys.argv[1])
print(filecharcount(f))
|
TYPE regChar
Character AS STRING * 3
Count AS LONG
END TYPE
DIM iChar AS INTEGER
DIM iCL AS INTEGER
DIM iCountChars AS INTEGER
DIM iFile AS INTEGER
DIM i AS INTEGER
DIM lMUC AS LONG
DIM iMUI AS INTEGER
DIM lLUC AS LONG
DIM iLUI AS INTEGER
DIM iMaxIdx AS INTEGER
DIM iP AS INTEGER
DIM iPause AS INTEGER
DIM iPMI AS INTEGER
DIM iPrint AS INTEGER
DIM lHowMany AS LONG
DIM lTotChars AS LONG
DIM sTime AS SINGLE
DIM strFile AS STRING
DIM strTxt AS STRING
DIM strDate AS STRING
DIM strTime AS STRING
DIM strKey AS STRING
CONST LngReg = 256
CONST Letters = 1
CONST FALSE = 0
CONST TRUE = NOT FALSE
strDate = DATE$
strTime = TIME$
iFile = FREEFILE
DO
CLS
PRINT "This program counts letters or characters in a text file."
PRINT
INPUT "File to open: ", strFile
OPEN strFile FOR BINARY AS #iFile
IF LOF(iFile) > 0 THEN
PRINT "Count: 1) Letters 2) Characters (1 or 2)";
DO
strKey = INKEY$
LOOP UNTIL strKey = "1" OR strKey = "2"
PRINT ". Option selected: "; strKey
iCL = VAL(strKey)
sTime = TIMER
iP = POS(0)
lHowMany = LOF(iFile)
strTxt = SPACE$(LngReg)
IF iCL = Letters THEN
iMaxIdx = 26
ELSE
iMaxIdx = 255
END IF
IF iMaxIdx <> iPMI THEN
iPMI = iMaxIdx
REDIM rChar(0 TO iMaxIdx) AS regChar
FOR i = 0 TO iMaxIdx
IF iCL = Letters THEN
strTxt = CHR$(i + 65)
IF i = 26 THEN strTxt = CHR$(165)
ELSE
SELECT CASE i
CASE 0: strTxt = "nul"
CASE 7: strTxt = "bel"
CASE 9: strTxt = "tab"
CASE 10: strTxt = "lf"
CASE 11: strTxt = "vt"
CASE 12: strTxt = "ff"
CASE 13: strTxt = "cr"
CASE 28: strTxt = "fs"
CASE 29: strTxt = "gs"
CASE 30: strTxt = "rs"
CASE 31: strTxt = "us"
CASE 32: strTxt = "sp"
CASE ELSE: strTxt = CHR$(i)
END SELECT
END IF
rChar(i).Character = strTxt
NEXT i
ELSE
FOR i = 0 TO iMaxIdx
rChar(i).Count = 0
NEXT i
END IF
PRINT "Looking for ";
IF iCL = Letters THEN PRINT "letters."; ELSE PRINT "characters.";
PRINT " File is"; STR$(lHowMany); " in size. Working"; : COLOR 23: PRINT "..."; : COLOR (7)
DO WHILE LOC(iFile) < LOF(iFile)
IF LOC(iFile) + LngReg > LOF(iFile) THEN
strTxt = SPACE$(LOF(iFile) - LOC(iFile))
END IF
GET #iFile, , strTxt
FOR i = 1 TO LEN(strTxt)
IF iCL = Letters THEN
iChar = ASC(UCASE$(MID$(strTxt, i, 1)))
SELECT CASE iChar
CASE 164: iChar = 165
CASE 160: iChar = 65
CASE 130, 144: iChar = 69
CASE 161: iChar = 73
CASE 162: iChar = 79
CASE 163, 129: iChar = 85
END SELECT
iChar = iChar - 65
IF iChar >= 0 AND iChar <= 25 THEN
rChar(iChar).Count = rChar(iChar).Count + 1
ELSEIF iChar = 100 THEN
rChar(iMaxIdx).Count = rChar(iMaxIdx).Count + 1
END IF
ELSE
iChar = ASC(MID$(strTxt, i, 1))
rChar(iChar).Count = rChar(iChar).Count + 1
END IF
NEXT i
LOOP
CLOSE #iFile
lMUC = 0
iMUI = 0
lLUC = 2147483647
iLUI = 0
iPrint = FALSE
lTotChars = 0
iCountChars = 0
iPause = FALSE
CLS
IF iCL = Letters THEN PRINT "Letters found: "; ELSE PRINT "Characters found: ";
FOR i = 0 TO iMaxIdx
IF lMUC < rChar(i).Count THEN
lMUC = rChar(i).Count
iMUI = i
END IF
IF rChar(i).Count > 0 THEN
strTxt = ""
IF iPrint THEN strTxt = ", " ELSE iPrint = TRUE
strTxt = strTxt + LTRIM$(RTRIM$(rChar(i).Character))
strTxt = strTxt + "=" + LTRIM$(STR$(rChar(i).Count))
iP = POS(0)
IF iP + LEN(strTxt) + 1 >= 80 AND iPrint THEN
PRINT ","
IF CSRLIN >= 23 AND NOT iPause THEN
iPause = TRUE
PRINT "Press a key to continue..."
DO
strKey = INKEY$
LOOP UNTIL strKey <> ""
END IF
strTxt = MID$(strTxt, 3)
END IF
PRINT strTxt;
lTotChars = lTotChars + rChar(i).Count
iCountChars = iCountChars + 1
IF lLUC > rChar(i).Count THEN
lLUC = rChar(i).Count
iLUI = i
END IF
END IF
NEXT i
PRINT "."
PRINT
PRINT "File analyzed....................: "; strFile
PRINT "Looked for.......................: "; : IF iCL = Letters THEN PRINT "Letters" ELSE PRINT "Characters"
PRINT "Total characters in file.........:"; lHowMany
PRINT "Total characters counted.........:"; lTotChars
IF iCL = Letters THEN PRINT "Characters discarded on count....:"; lHowMany - lTotChars
PRINT "Distinct characters found in file:"; iCountChars; "of"; iMaxIdx + 1
PRINT "Most used character was..........: ";
iPrint = FALSE
FOR i = 0 TO iMaxIdx
IF rChar(i).Count = lMUC THEN
IF iPrint THEN PRINT ", "; ELSE iPrint = TRUE
PRINT RTRIM$(LTRIM$(rChar(i).Character));
END IF
NEXT i
PRINT " ("; LTRIM$(STR$(rChar(iMUI).Count)); " times)"
PRINT "Least used character was.........: ";
iPrint = FALSE
FOR i = 0 TO iMaxIdx
IF rChar(i).Count = lLUC THEN
IF iPrint THEN PRINT ", "; ELSE iPrint = TRUE
PRINT RTRIM$(LTRIM$(rChar(i).Character));
END IF
NEXT i
PRINT " ("; LTRIM$(STR$(rChar(iLUI).Count)); " times)"
PRINT "Time spent in the process........:"; TIMER - sTime; "seconds"
ELSE
CLOSE #iFile
KILL strFile
PRINT
PRINT "File does not exist."
END IF
PRINT
PRINT "Again? (Y/n)"
DO
strTxt = UCASE$(INKEY$)
LOOP UNTIL strTxt = "N" OR strTxt = "Y" OR strTxt = CHR$(13) OR strTxt = CHR$(27)
LOOP UNTIL strTxt = "N" OR strTxt = CHR$(27)
CLS
PRINT "End of execution."
PRINT "Start time: "; strDate; " "; strTime; ", end time: "; DATE$; " "; TIME$; "."
END
|
Transform the following Python implementation into VB, maintaining the same output and logic. | next = str(int('123') + 1)
| Dim s As String = "123"
s = CStr(CInt("123") + 1)
s = (CInt("123") + 1).ToString
|
Produce a functionally identical VB code for the snippet given in Python. | next = str(int('123') + 1)
| Dim s As String = "123"
s = CStr(CInt("123") + 1)
s = (CInt("123") + 1).ToString
|
Can you help me rewrite this code in VB instead of Python, keeping it the same logically? | >>> def stripchars(s, chars):
... return s.translate(None, chars)
...
>>> stripchars("She was a soul stripper. She took my heart!", "aei")
'Sh ws soul strppr. Sh took my hrt!'
| Function StripChars(stString As String, stStripChars As String, Optional bSpace As Boolean)
Dim i As Integer, stReplace As String
If bSpace = True Then
stReplace = " "
Else
stReplace = ""
End If
For i = 1 To Len(stStripChars)
stString = Replace(stString, Mid(stStripChars, i, 1), stReplace)
Next i
StripChars = stString
End Function
|
Rewrite the snippet below in VB so it works the same as the original Python code. | from math import fsum
def average(x):
return fsum(x)/float(len(x)) if x else 0
print (average([0,0,3,1,4,1,5,9,0,0]))
print (average([1e20,-1e-20,3,1,4,1,5,9,-1e20,1e-20]))
| Private Function mean(v() As Double, ByVal leng As Integer) As Variant
Dim sum As Double, i As Integer
sum = 0: i = 0
For i = 0 To leng - 1
sum = sum + vv
Next i
If leng = 0 Then
mean = CVErr(xlErrDiv0)
Else
mean = sum / leng
End If
End Function
Public Sub main()
Dim v(4) As Double
Dim i As Integer, leng As Integer
v(0) = 1#
v(1) = 2#
v(2) = 2.178
v(3) = 3#
v(4) = 3.142
For leng = 5 To 0 Step -1
Debug.Print "mean[";
For i = 0 To leng - 1
Debug.Print IIf(i, "; " & v(i), "" & v(i));
Next i
Debug.Print "] = "; mean(v, leng)
Next leng
End Sub
|
Transform the following Python implementation into VB, maintaining the same output and logic. | command_table_text =
user_words = "riG rePEAT copies put mo rest types fup. 6 poweRin"
def find_abbreviations_length(command_table_text):
command_table = dict()
input_iter = iter(command_table_text.split())
word = None
try:
while True:
if word is None:
word = next(input_iter)
abbr_len = next(input_iter, len(word))
try:
command_table[word] = int(abbr_len)
word = None
except ValueError:
command_table[word] = len(word)
word = abbr_len
except StopIteration:
pass
return command_table
def find_abbreviations(command_table):
abbreviations = dict()
for command, min_abbr_len in command_table.items():
for l in range(min_abbr_len, len(command)+1):
abbr = command[:l].lower()
abbreviations[abbr] = command.upper()
return abbreviations
def parse_user_string(user_string, abbreviations):
user_words = [word.lower() for word in user_string.split()]
commands = [abbreviations.get(user_word, "*error*") for user_word in user_words]
return " ".join(commands)
command_table = find_abbreviations_length(command_table_text)
abbreviations_table = find_abbreviations(command_table)
full_words = parse_user_string(user_words, abbreviations_table)
print("user words:", user_words)
print("full words:", full_words)
| Private Function ValidateUserWords(userstring As String) As String
Dim s As String
Dim user_words() As String
Dim command_table As Scripting.Dictionary
Set command_table = New Scripting.Dictionary
Dim abbreviations As Scripting.Dictionary
Set abbreviations = New Scripting.Dictionary
abbreviations.CompareMode = TextCompare
Dim commandtable() As String
Dim commands As String
s = s & "add 1 alter 3 backup 2 bottom 1 Cappend 2 change 1 Schange Cinsert 2 Clast 3 "
s = s & "compress 4 copy 2 count 3 Coverlay 3 cursor 3 delete 3 Cdelete 2 down 1 duplicate "
s = s & "3 xEdit 1 expand 3 extract 3 find 1 Nfind 2 Nfindup 6 NfUP 3 Cfind 2 findUP 3 fUP 2 "
s = s & "forward 2 get help 1 hexType 4 input 1 powerInput 3 join 1 split 2 spltJOIN load "
s = s & "locate 1 Clocate 2 lowerCase 3 upperCase 3 Lprefix 2 macro merge 2 modify 3 move 2 "
s = s & "msg next 1 overlay 1 parse preserve 4 purge 3 put putD query 1 quit read recover 3 "
s = s & "refresh renum 3 repeat 3 replace 1 Creplace 2 reset 3 restore 4 rgtLEFT right 2 left "
s = s & "2 save set shift 2 si sort sos stack 3 status 4 top transfer 3 type 1 up 1 "
commandtable = Split(s, " ")
Dim i As Integer, word As Variant, number As Integer
For i = LBound(commandtable) To UBound(commandtable)
word = commandtable(i)
If Len(word) > 0 Then
i = i + 1
Do While Len(commandtable(i)) = 0: i = i + 1: Loop
number = Val(commandtable(i))
If number > 0 Then
command_table.Add Key:=word, Item:=number
Else
command_table.Add Key:=word, Item:=Len(word)
i = i - 1
End If
End If
Next i
For Each word In command_table
For i = command_table(word) To Len(word)
On Error Resume Next
abbreviations.Add Key:=Left(word, i), Item:=UCase(word)
Next i
Next word
user_words() = Split(userstring, " ")
For Each word In user_words
If Len(word) > 0 Then
If abbreviations.exists(word) Then
commands = commands & abbreviations(word) & " "
Else
commands = commands & "*error* "
End If
End If
Next word
ValidateUserWords = commands
End Function
Public Sub program()
Dim guserstring As String
guserstring = "riG rePEAT copies put mo rest types fup. 6 poweRin"
Debug.Print "user words:", guserstring
Debug.Print "full words:", ValidateUserWords(guserstring)
End Sub
|
Please provide an equivalent version of this Python code in VB. | command_table_text =
user_words = "riG rePEAT copies put mo rest types fup. 6 poweRin"
def find_abbreviations_length(command_table_text):
command_table = dict()
input_iter = iter(command_table_text.split())
word = None
try:
while True:
if word is None:
word = next(input_iter)
abbr_len = next(input_iter, len(word))
try:
command_table[word] = int(abbr_len)
word = None
except ValueError:
command_table[word] = len(word)
word = abbr_len
except StopIteration:
pass
return command_table
def find_abbreviations(command_table):
abbreviations = dict()
for command, min_abbr_len in command_table.items():
for l in range(min_abbr_len, len(command)+1):
abbr = command[:l].lower()
abbreviations[abbr] = command.upper()
return abbreviations
def parse_user_string(user_string, abbreviations):
user_words = [word.lower() for word in user_string.split()]
commands = [abbreviations.get(user_word, "*error*") for user_word in user_words]
return " ".join(commands)
command_table = find_abbreviations_length(command_table_text)
abbreviations_table = find_abbreviations(command_table)
full_words = parse_user_string(user_words, abbreviations_table)
print("user words:", user_words)
print("full words:", full_words)
| Private Function ValidateUserWords(userstring As String) As String
Dim s As String
Dim user_words() As String
Dim command_table As Scripting.Dictionary
Set command_table = New Scripting.Dictionary
Dim abbreviations As Scripting.Dictionary
Set abbreviations = New Scripting.Dictionary
abbreviations.CompareMode = TextCompare
Dim commandtable() As String
Dim commands As String
s = s & "add 1 alter 3 backup 2 bottom 1 Cappend 2 change 1 Schange Cinsert 2 Clast 3 "
s = s & "compress 4 copy 2 count 3 Coverlay 3 cursor 3 delete 3 Cdelete 2 down 1 duplicate "
s = s & "3 xEdit 1 expand 3 extract 3 find 1 Nfind 2 Nfindup 6 NfUP 3 Cfind 2 findUP 3 fUP 2 "
s = s & "forward 2 get help 1 hexType 4 input 1 powerInput 3 join 1 split 2 spltJOIN load "
s = s & "locate 1 Clocate 2 lowerCase 3 upperCase 3 Lprefix 2 macro merge 2 modify 3 move 2 "
s = s & "msg next 1 overlay 1 parse preserve 4 purge 3 put putD query 1 quit read recover 3 "
s = s & "refresh renum 3 repeat 3 replace 1 Creplace 2 reset 3 restore 4 rgtLEFT right 2 left "
s = s & "2 save set shift 2 si sort sos stack 3 status 4 top transfer 3 type 1 up 1 "
commandtable = Split(s, " ")
Dim i As Integer, word As Variant, number As Integer
For i = LBound(commandtable) To UBound(commandtable)
word = commandtable(i)
If Len(word) > 0 Then
i = i + 1
Do While Len(commandtable(i)) = 0: i = i + 1: Loop
number = Val(commandtable(i))
If number > 0 Then
command_table.Add Key:=word, Item:=number
Else
command_table.Add Key:=word, Item:=Len(word)
i = i - 1
End If
End If
Next i
For Each word In command_table
For i = command_table(word) To Len(word)
On Error Resume Next
abbreviations.Add Key:=Left(word, i), Item:=UCase(word)
Next i
Next word
user_words() = Split(userstring, " ")
For Each word In user_words
If Len(word) > 0 Then
If abbreviations.exists(word) Then
commands = commands & abbreviations(word) & " "
Else
commands = commands & "*error* "
End If
End If
Next word
ValidateUserWords = commands
End Function
Public Sub program()
Dim guserstring As String
guserstring = "riG rePEAT copies put mo rest types fup. 6 poweRin"
Debug.Print "user words:", guserstring
Debug.Print "full words:", ValidateUserWords(guserstring)
End Sub
|
Convert this Python snippet to VB and keep its semantics consistent. | def token_with_escape(a, escape = '^', separator = '|'):
result = []
token = ''
state = 0
for c in a:
if state == 0:
if c == escape:
state = 1
elif c == separator:
result.append(token)
token = ''
else:
token += c
elif state == 1:
token += c
state = 0
result.append(token)
return result
| Private Function tokenize(s As String, sep As String, esc As String) As Collection
Dim ret As New Collection
Dim this As String
Dim skip As Boolean
If Len(s) <> 0 Then
For i = 1 To Len(s)
si = Mid(s, i, 1)
If skip Then
this = this & si
skip = False
Else
If si = esc Then
skip = True
Else
If si = sep Then
ret.Add this
this = ""
Else
this = this & si
End If
End If
End If
Next i
ret.Add this
End If
Set tokenize = ret
End Function
Public Sub main()
Dim out As Collection
Set out = tokenize("one^|uno||three^^^^|four^^^|^cuatro|", "|", "^")
Dim outstring() As String
ReDim outstring(out.Count - 1)
For i = 0 To out.Count - 1
outstring(i) = out(i + 1)
Next i
Debug.Print Join(outstring, ", ")
End Sub
|
Translate this program into VB but keep the logic exactly as in Python. | >>> dif = lambda s: [x-s[i] for i,x in enumerate(s[1:])]
>>>
>>> difn = lambda s, n: difn(dif(s), n-1) if n else s
>>> s = [90, 47, 58, 29, 22, 32, 55, 5, 55, 73]
>>> difn(s, 0)
[90, 47, 58, 29, 22, 32, 55, 5, 55, 73]
>>> difn(s, 1)
[-43, 11, -29, -7, 10, 23, -50, 50, 18]
>>> difn(s, 2)
[54, -40, 22, 17, 13, -73, 100, -32]
>>> from pprint import pprint
>>> pprint( [difn(s, i) for i in xrange(10)] )
[[90, 47, 58, 29, 22, 32, 55, 5, 55, 73],
[-43, 11, -29, -7, 10, 23, -50, 50, 18],
[54, -40, 22, 17, 13, -73, 100, -32],
[-94, 62, -5, -4, -86, 173, -132],
[156, -67, 1, -82, 259, -305],
[-223, 68, -83, 341, -564],
[291, -151, 424, -905],
[-442, 575, -1329],
[1017, -1904],
[-2921]]
| Module ForwardDifference
Sub Main()
Dim lNum As New List(Of Integer)(New Integer() {90, 47, 58, 29, 22, 32, 55, 5, 55, 73})
For i As UInteger = 0 To 9
Console.WriteLine(String.Join(" ", (From n In Difference(i, lNum) Select String.Format("{0,5}", n)).ToArray()))
Next
Console.ReadKey()
End Sub
Private Function Difference(ByVal Level As UInteger, ByVal Numbers As List(Of Integer)) As List(Of Integer)
If Level >= Numbers.Count Then Throw New ArgumentOutOfRangeException("Level", "Level must be less than number of items in Numbers")
For i As Integer = 1 To Level
Numbers = (From n In Enumerable.Range(0, Numbers.Count - 1) _
Select Numbers(n + 1) - Numbers(n)).ToList()
Next
Return Numbers
End Function
End Module
|
Preserve the algorithm and functionality while converting the code from Python to VB. | def prime(a):
return not (a < 2 or any(a % x == 0 for x in xrange(2, int(a**0.5) + 1)))
| Option Explicit
Sub FirstTwentyPrimes()
Dim count As Integer, i As Long, t(19) As String
Do
i = i + 1
If IsPrime(i) Then
t(count) = i
count = count + 1
End If
Loop While count <= UBound(t)
Debug.Print Join(t, ", ")
End Sub
Function IsPrime(Nb As Long) As Boolean
If Nb = 2 Then
IsPrime = True
ElseIf Nb < 2 Or Nb Mod 2 = 0 Then
Exit Function
Else
Dim i As Long
For i = 3 To Sqr(Nb) Step 2
If Nb Mod i = 0 Then Exit Function
Next
IsPrime = True
End If
End Function
|
Transform the following Python implementation into VB, maintaining the same output and logic. | def binomialCoeff(n, k):
result = 1
for i in range(1, k+1):
result = result * (n-i+1) / i
return result
if __name__ == "__main__":
print(binomialCoeff(5, 3))
| Function binomial(n,k)
binomial = factorial(n)/(factorial(n-k)*factorial(k))
End Function
Function factorial(n)
If n = 0 Then
factorial = 1
Else
For i = n To 1 Step -1
If i = n Then
factorial = n
Else
factorial = factorial * i
End If
Next
End If
End Function
WScript.StdOut.Write "the binomial coefficient of 5 and 3 = " & binomial(5,3)
WScript.StdOut.WriteLine
|
Write the same algorithm in VB as shown in this Python implementation. | collection = [0, '1']
x = collection[0]
collection.append(2)
collection.insert(0, '-1')
y = collection[0]
collection.extend([2,'3'])
collection += [2,'3']
collection[2:6]
len(collection)
collection = (0, 1)
collection[:]
collection[-4:-1]
collection[::2]
collection="some string"
x = collection[::-1]
collection[::2] == "some string"[::2]
collection.__getitem__(slice(0,len(collection),2))
collection = {0: "zero", 1: "one"}
collection['zero'] = 2
collection = set([0, '1'])
| Dim coll As New Collection
coll.Add "apple"
coll.Add "banana"
|
Preserve the algorithm and functionality while converting the code from Python to VB. | collection = [0, '1']
x = collection[0]
collection.append(2)
collection.insert(0, '-1')
y = collection[0]
collection.extend([2,'3'])
collection += [2,'3']
collection[2:6]
len(collection)
collection = (0, 1)
collection[:]
collection[-4:-1]
collection[::2]
collection="some string"
x = collection[::-1]
collection[::2] == "some string"[::2]
collection.__getitem__(slice(0,len(collection),2))
collection = {0: "zero", 1: "one"}
collection['zero'] = 2
collection = set([0, '1'])
| Dim coll As New Collection
coll.Add "apple"
coll.Add "banana"
|
Maintain the same structure and functionality when rewriting this code in VB. | for node in lst:
print node.value
| Private Sub Iterate(ByVal list As LinkedList(Of Integer))
Dim node = list.First
Do Until node Is Nothing
node = node.Next
Loop
End Sub
|
Can you help me rewrite this code in VB instead of Python, keeping it the same logically? |
import io
ppmfileout = io.StringIO('')
def writeppmp3(self, f):
self.writeppm(f, ppmformat='P3')
def writeppm(self, f, ppmformat='P6'):
assert ppmformat in ['P3', 'P6'], 'Format wrong'
magic = ppmformat + '\n'
comment = '
maxval = max(max(max(bit) for bit in row) for row in self.map)
assert ppmformat == 'P3' or 0 <= maxval < 256, 'R,G,B must fit in a byte'
if ppmformat == 'P6':
fwrite = lambda s: f.write(bytes(s, 'UTF-8'))
maxval = 255
else:
fwrite = f.write
numsize=len(str(maxval))
fwrite(magic)
fwrite(comment)
fwrite('%i %i\n%i\n' % (self.width, self.height, maxval))
for h in range(self.height-1, -1, -1):
for w in range(self.width):
r, g, b = self.get(w, h)
if ppmformat == 'P3':
fwrite(' %*i %*i %*i' % (numsize, r, numsize, g, numsize, b))
else:
fwrite('%c%c%c' % (r, g, b))
if ppmformat == 'P3':
fwrite('\n')
Bitmap.writeppmp3 = writeppmp3
Bitmap.writeppm = writeppm
bitmap = Bitmap(4, 4, black)
bitmap.fillrect(1, 0, 1, 2, white)
bitmap.set(3, 3, Colour(127, 0, 63))
bitmap.writeppmp3(ppmfileout)
print(ppmfileout.getvalue())
ppmfileout = open('tmp.ppm', 'wb')
bitmap.writeppm(ppmfileout)
ppmfileout.close()
| Public Shared Sub SaveRasterBitmapToPpmFile(ByVal rasterBitmap As RasterBitmap, ByVal filepath As String)
Dim header As String = String.Format("P6{0}{1}{2}{3}{0}255{0}", vbLf, rasterBitmap.Width, " "c, rasterBitmap.Height)
Dim bufferSize As Integer = header.Length + (rasterBitmap.Width * rasterBitmap.Height * 3)
Dim bytes(bufferSize - 1) As Byte
Buffer.BlockCopy(Encoding.ASCII.GetBytes(header.ToString), 0, bytes, 0, header.Length)
Dim index As Integer = header.Length
For y As Integer = 0 To rasterBitmap.Height - 1
For x As Integer = 0 To rasterBitmap.Width - 1
Dim color As Rgb = rasterBitmap.GetPixel(x, y)
bytes(index) = color.R
bytes(index + 1) = color.G
bytes(index + 2) = color.B
index += 3
Next
Next
My.Computer.FileSystem.WriteAllBytes(filepath, bytes, False)
End Sub
|
Ensure the translated VB code behaves exactly like the original Python snippet. | import os
os.remove("output.txt")
os.rmdir("docs")
os.remove("/output.txt")
os.rmdir("/docs")
| Option Explicit
Sub DeleteFileOrDirectory()
Dim myPath As String
myPath = "C:\Users\surname.name\Desktop\Docs"
Kill myPath & "\input.txt"
RmDir myPath
End Sub
|
Convert the following code from Python to VB, ensuring the logic remains intact. | from __future__ import division
from math import factorial
from random import randrange
MAX_N = 20
TIMES = 1000000
def analytical(n):
return sum(factorial(n) / pow(n, i) / factorial(n -i) for i in range(1, n+1))
def test(n, times):
count = 0
for i in range(times):
x, bits = 1, 0
while not (bits & x):
count += 1
bits |= x
x = 1 << randrange(n)
return count / times
if __name__ == '__main__':
print(" n\tavg\texp.\tdiff\n-------------------------------")
for n in range(1, MAX_N+1):
avg = test(n, TIMES)
theory = analytical(n)
diff = (avg / theory - 1) * 100
print("%2d %8.4f %8.4f %6.3f%%" % (n, avg, theory, diff))
| Const MAX = 20
Const ITER = 1000000
Function expected(n As Long) As Double
Dim sum As Double
For i = 1 To n
sum = sum + WorksheetFunction.Fact(n) / n ^ i / WorksheetFunction.Fact(n - i)
Next i
expected = sum
End Function
Function test(n As Long) As Double
Dim count As Long
Dim x As Long, bits As Long
For i = 1 To ITER
x = 1
bits = 0
Do While Not bits And x
count = count + 1
bits = bits Or x
x = 2 ^ (Int(n * Rnd()))
Loop
Next i
test = count / ITER
End Function
Public Sub main()
Dim n As Long
Debug.Print " n avg. exp. (error%)"
Debug.Print "== ====== ====== ========"
For n = 1 To MAX
av = test(n)
ex = expected(n)
Debug.Print Format(n, "@@"); " "; Format(av, "0.0000"); " ";
Debug.Print Format(ex, "0.0000"); " ("; Format(Abs(1 - av / ex), "0.000%"); ")"
Next n
End Sub
|
Transform the following Python implementation into VB, maintaining the same output and logic. | from __future__ import division
from math import factorial
from random import randrange
MAX_N = 20
TIMES = 1000000
def analytical(n):
return sum(factorial(n) / pow(n, i) / factorial(n -i) for i in range(1, n+1))
def test(n, times):
count = 0
for i in range(times):
x, bits = 1, 0
while not (bits & x):
count += 1
bits |= x
x = 1 << randrange(n)
return count / times
if __name__ == '__main__':
print(" n\tavg\texp.\tdiff\n-------------------------------")
for n in range(1, MAX_N+1):
avg = test(n, TIMES)
theory = analytical(n)
diff = (avg / theory - 1) * 100
print("%2d %8.4f %8.4f %6.3f%%" % (n, avg, theory, diff))
| Const MAX = 20
Const ITER = 1000000
Function expected(n As Long) As Double
Dim sum As Double
For i = 1 To n
sum = sum + WorksheetFunction.Fact(n) / n ^ i / WorksheetFunction.Fact(n - i)
Next i
expected = sum
End Function
Function test(n As Long) As Double
Dim count As Long
Dim x As Long, bits As Long
For i = 1 To ITER
x = 1
bits = 0
Do While Not bits And x
count = count + 1
bits = bits Or x
x = 2 ^ (Int(n * Rnd()))
Loop
Next i
test = count / ITER
End Function
Public Sub main()
Dim n As Long
Debug.Print " n avg. exp. (error%)"
Debug.Print "== ====== ====== ========"
For n = 1 To MAX
av = test(n)
ex = expected(n)
Debug.Print Format(n, "@@"); " "; Format(av, "0.0000"); " ";
Debug.Print Format(ex, "0.0000"); " ("; Format(Abs(1 - av / ex), "0.000%"); ")"
Next n
End Sub
|
Can you help me rewrite this code in VB instead of Python, keeping it the same logically? | >>> original = 'Mary had a %s lamb.'
>>> extra = 'little'
>>> original % extra
'Mary had a little lamb.'
| Dim name as String = "J. Doe"
Dim balance as Double = 123.45
Dim prompt as String = String.Format("Hello {0}, your balance is {1}.", name, balance)
Console.WriteLine(prompt)
|
Preserve the algorithm and functionality while converting the code from Python to VB. | from itertools import permutations
from operator import mul
from math import fsum
from spermutations import spermutations
def prod(lst):
return reduce(mul, lst, 1)
def perm(a):
n = len(a)
r = range(n)
s = permutations(r)
return fsum(prod(a[i][sigma[i]] for i in r) for sigma in s)
def det(a):
n = len(a)
r = range(n)
s = spermutations(n)
return fsum(sign * prod(a[i][sigma[i]] for i in r)
for sigma, sign in s)
if __name__ == '__main__':
from pprint import pprint as pp
for a in (
[
[1, 2],
[3, 4]],
[
[1, 2, 3, 4],
[4, 5, 6, 7],
[7, 8, 9, 10],
[10, 11, 12, 13]],
[
[ 0, 1, 2, 3, 4],
[ 5, 6, 7, 8, 9],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19],
[20, 21, 22, 23, 24]],
):
print('')
pp(a)
print('Perm: %s Det: %s' % (perm(a), det(a)))
| Module Module1
Function Minor(a As Double(,), x As Integer, y As Integer) As Double(,)
Dim length = a.GetLength(0) - 1
Dim result(length - 1, length - 1) As Double
For i = 1 To length
For j = 1 To length
If i < x AndAlso j < y Then
result(i - 1, j - 1) = a(i - 1, j - 1)
ElseIf i >= x AndAlso j < y Then
result(i - 1, j - 1) = a(i, j - 1)
ElseIf i < x AndAlso j >= y Then
result(i - 1, j - 1) = a(i - 1, j)
Else
result(i - 1, j - 1) = a(i, j)
End If
Next
Next
Return result
End Function
Function Det(a As Double(,)) As Double
If a.GetLength(0) = 1 Then
Return a(0, 0)
Else
Dim sign = 1
Dim sum = 0.0
For i = 1 To a.GetLength(0)
sum += sign * a(0, i - 1) * Det(Minor(a, 0, i))
sign *= -1
Next
Return sum
End If
End Function
Function Perm(a As Double(,)) As Double
If a.GetLength(0) = 1 Then
Return a(0, 0)
Else
Dim sum = 0.0
For i = 1 To a.GetLength(0)
sum += a(0, i - 1) * Perm(Minor(a, 0, i))
Next
Return sum
End If
End Function
Sub WriteLine(a As Double(,))
For i = 1 To a.GetLength(0)
Console.Write("[")
For j = 1 To a.GetLength(1)
If j > 1 Then
Console.Write(", ")
End If
Console.Write(a(i - 1, j - 1))
Next
Console.WriteLine("]")
Next
End Sub
Sub Test(a As Double(,))
If a.GetLength(0) <> a.GetLength(1) Then
Throw New ArgumentException("The dimensions must be equal")
End If
WriteLine(a)
Console.WriteLine("Permanant : {0}", Perm(a))
Console.WriteLine("Determinant: {0}", Det(a))
Console.WriteLine()
End Sub
Sub Main()
Test({{1, 2}, {3, 4}})
Test({{1, 2, 3, 4}, {4, 5, 6, 7}, {7, 8, 9, 10}, {10, 11, 12, 13}})
Test({{0, 1, 2, 3, 4}, {5, 6, 7, 8, 9}, {10, 11, 12, 13, 14}, {15, 16, 17, 18, 19}, {20, 21, 22, 23, 24}})
End Sub
End Module
|
Can you help me rewrite this code in VB instead of Python, keeping it the same logically? | from itertools import permutations
from operator import mul
from math import fsum
from spermutations import spermutations
def prod(lst):
return reduce(mul, lst, 1)
def perm(a):
n = len(a)
r = range(n)
s = permutations(r)
return fsum(prod(a[i][sigma[i]] for i in r) for sigma in s)
def det(a):
n = len(a)
r = range(n)
s = spermutations(n)
return fsum(sign * prod(a[i][sigma[i]] for i in r)
for sigma, sign in s)
if __name__ == '__main__':
from pprint import pprint as pp
for a in (
[
[1, 2],
[3, 4]],
[
[1, 2, 3, 4],
[4, 5, 6, 7],
[7, 8, 9, 10],
[10, 11, 12, 13]],
[
[ 0, 1, 2, 3, 4],
[ 5, 6, 7, 8, 9],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19],
[20, 21, 22, 23, 24]],
):
print('')
pp(a)
print('Perm: %s Det: %s' % (perm(a), det(a)))
| Module Module1
Function Minor(a As Double(,), x As Integer, y As Integer) As Double(,)
Dim length = a.GetLength(0) - 1
Dim result(length - 1, length - 1) As Double
For i = 1 To length
For j = 1 To length
If i < x AndAlso j < y Then
result(i - 1, j - 1) = a(i - 1, j - 1)
ElseIf i >= x AndAlso j < y Then
result(i - 1, j - 1) = a(i, j - 1)
ElseIf i < x AndAlso j >= y Then
result(i - 1, j - 1) = a(i - 1, j)
Else
result(i - 1, j - 1) = a(i, j)
End If
Next
Next
Return result
End Function
Function Det(a As Double(,)) As Double
If a.GetLength(0) = 1 Then
Return a(0, 0)
Else
Dim sign = 1
Dim sum = 0.0
For i = 1 To a.GetLength(0)
sum += sign * a(0, i - 1) * Det(Minor(a, 0, i))
sign *= -1
Next
Return sum
End If
End Function
Function Perm(a As Double(,)) As Double
If a.GetLength(0) = 1 Then
Return a(0, 0)
Else
Dim sum = 0.0
For i = 1 To a.GetLength(0)
sum += a(0, i - 1) * Perm(Minor(a, 0, i))
Next
Return sum
End If
End Function
Sub WriteLine(a As Double(,))
For i = 1 To a.GetLength(0)
Console.Write("[")
For j = 1 To a.GetLength(1)
If j > 1 Then
Console.Write(", ")
End If
Console.Write(a(i - 1, j - 1))
Next
Console.WriteLine("]")
Next
End Sub
Sub Test(a As Double(,))
If a.GetLength(0) <> a.GetLength(1) Then
Throw New ArgumentException("The dimensions must be equal")
End If
WriteLine(a)
Console.WriteLine("Permanant : {0}", Perm(a))
Console.WriteLine("Determinant: {0}", Det(a))
Console.WriteLine()
End Sub
Sub Main()
Test({{1, 2}, {3, 4}})
Test({{1, 2, 3, 4}, {4, 5, 6, 7}, {7, 8, 9, 10}, {10, 11, 12, 13}})
Test({{0, 1, 2, 3, 4}, {5, 6, 7, 8, 9}, {10, 11, 12, 13, 14}, {15, 16, 17, 18, 19}, {20, 21, 22, 23, 24}})
End Sub
End Module
|
Please provide an equivalent version of this Python code in VB. | from collections import namedtuple
from pprint import pprint as pp
import sys
Pt = namedtuple('Pt', 'x, y')
Edge = namedtuple('Edge', 'a, b')
Poly = namedtuple('Poly', 'name, edges')
_eps = 0.00001
_huge = sys.float_info.max
_tiny = sys.float_info.min
def rayintersectseg(p, edge):
a,b = edge
if a.y > b.y:
a,b = b,a
if p.y == a.y or p.y == b.y:
p = Pt(p.x, p.y + _eps)
intersect = False
if (p.y > b.y or p.y < a.y) or (
p.x > max(a.x, b.x)):
return False
if p.x < min(a.x, b.x):
intersect = True
else:
if abs(a.x - b.x) > _tiny:
m_red = (b.y - a.y) / float(b.x - a.x)
else:
m_red = _huge
if abs(a.x - p.x) > _tiny:
m_blue = (p.y - a.y) / float(p.x - a.x)
else:
m_blue = _huge
intersect = m_blue >= m_red
return intersect
def _odd(x): return x%2 == 1
def ispointinside(p, poly):
ln = len(poly)
return _odd(sum(rayintersectseg(p, edge)
for edge in poly.edges ))
def polypp(poly):
print ("\n Polygon(name='%s', edges=(" % poly.name)
print (' ', ',\n '.join(str(e) for e in poly.edges) + '\n ))')
if __name__ == '__main__':
polys = [
Poly(name='square', edges=(
Edge(a=Pt(x=0, y=0), b=Pt(x=10, y=0)),
Edge(a=Pt(x=10, y=0), b=Pt(x=10, y=10)),
Edge(a=Pt(x=10, y=10), b=Pt(x=0, y=10)),
Edge(a=Pt(x=0, y=10), b=Pt(x=0, y=0))
)),
Poly(name='square_hole', edges=(
Edge(a=Pt(x=0, y=0), b=Pt(x=10, y=0)),
Edge(a=Pt(x=10, y=0), b=Pt(x=10, y=10)),
Edge(a=Pt(x=10, y=10), b=Pt(x=0, y=10)),
Edge(a=Pt(x=0, y=10), b=Pt(x=0, y=0)),
Edge(a=Pt(x=2.5, y=2.5), b=Pt(x=7.5, y=2.5)),
Edge(a=Pt(x=7.5, y=2.5), b=Pt(x=7.5, y=7.5)),
Edge(a=Pt(x=7.5, y=7.5), b=Pt(x=2.5, y=7.5)),
Edge(a=Pt(x=2.5, y=7.5), b=Pt(x=2.5, y=2.5))
)),
Poly(name='strange', edges=(
Edge(a=Pt(x=0, y=0), b=Pt(x=2.5, y=2.5)),
Edge(a=Pt(x=2.5, y=2.5), b=Pt(x=0, y=10)),
Edge(a=Pt(x=0, y=10), b=Pt(x=2.5, y=7.5)),
Edge(a=Pt(x=2.5, y=7.5), b=Pt(x=7.5, y=7.5)),
Edge(a=Pt(x=7.5, y=7.5), b=Pt(x=10, y=10)),
Edge(a=Pt(x=10, y=10), b=Pt(x=10, y=0)),
Edge(a=Pt(x=10, y=0), b=Pt(x=2.5, y=2.5))
)),
Poly(name='exagon', edges=(
Edge(a=Pt(x=3, y=0), b=Pt(x=7, y=0)),
Edge(a=Pt(x=7, y=0), b=Pt(x=10, y=5)),
Edge(a=Pt(x=10, y=5), b=Pt(x=7, y=10)),
Edge(a=Pt(x=7, y=10), b=Pt(x=3, y=10)),
Edge(a=Pt(x=3, y=10), b=Pt(x=0, y=5)),
Edge(a=Pt(x=0, y=5), b=Pt(x=3, y=0))
)),
]
testpoints = (Pt(x=5, y=5), Pt(x=5, y=8),
Pt(x=-10, y=5), Pt(x=0, y=5),
Pt(x=10, y=5), Pt(x=8, y=5),
Pt(x=10, y=10))
print ("\n TESTING WHETHER POINTS ARE WITHIN POLYGONS")
for poly in polys:
polypp(poly)
print (' ', '\t'.join("%s: %s" % (p, ispointinside(p, poly))
for p in testpoints[:3]))
print (' ', '\t'.join("%s: %s" % (p, ispointinside(p, poly))
for p in testpoints[3:6]))
print (' ', '\t'.join("%s: %s" % (p, ispointinside(p, poly))
for p in testpoints[6:]))
| Imports System.Math
Module RayCasting
Private square As Integer()() = {New Integer() {0, 0}, New Integer() {20, 0}, New Integer() {20, 20}, New Integer() {0, 20}}
Private squareHole As Integer()() = {New Integer() {0, 0}, New Integer() {20, 0}, New Integer() {20, 20}, New Integer() {0, 20}, New Integer() {5, 5}, New Integer() {15, 5}, New Integer() {15, 15}, New Integer() {5, 15}}
Private strange As Integer()() = {New Integer() {0, 0}, New Integer() {5, 5}, New Integer() {0, 20}, New Integer() {5, 15}, New Integer() {15, 15}, New Integer() {20, 20}, New Integer() {20, 0}}
Private hexagon As Integer()() = {New Integer() {6, 0}, New Integer() {14, 0}, New Integer() {20, 10}, New Integer() {14, 20}, New Integer() {6, 20}, New Integer() {0, 10}}
Private shapes As Integer()()() = {square, squareHole, strange, hexagon}
Public Sub Main()
Dim testPoints As Double()() = {New Double() {10, 10}, New Double() {10, 16}, New Double() {-20, 10}, New Double() {0, 10}, New Double() {20, 10}, New Double() {16, 10}, New Double() {20, 20}}
For Each shape As Integer()() In shapes
For Each point As Double() In testPoints
Console.Write(String.Format("{0} ", Contains(shape, point).ToString.PadLeft(7)))
Next
Console.WriteLine()
Next
End Sub
Private Function Contains(shape As Integer()(), point As Double()) As Boolean
Dim inside As Boolean = False
Dim length As Integer = shape.Length
For i As Integer = 0 To length - 1
If Intersects(shape(i), shape((i + 1) Mod length), point) Then
inside = Not inside
End If
Next
Return inside
End Function
Private Function Intersects(a As Integer(), b As Integer(), p As Double()) As Boolean
If a(1) > b(1) Then Return Intersects(b, a, p)
If p(1) = a(1) Or p(1) = b(1) Then p(1) += 0.0001
If p(1) > b(1) Or p(1) < a(1) Or p(0) >= Max(a(0), b(0)) Then Return False
If p(0) < Min(a(0), b(0)) Then Return True
Dim red As Double = (p(1) - a(1)) / (p(0) - a(0))
Dim blue As Double = (b(1) - a(1)) / (b(0) - a(0))
Return red >= blue
End Function
End Module
|
Convert the following code from Python to VB, ensuring the logic remains intact. | >>> "the three truths".count("th")
3
>>> "ababababab".count("abab")
2
| Function CountSubstring(str,substr)
CountSubstring = 0
For i = 1 To Len(str)
If Len(str) >= Len(substr) Then
If InStr(i,str,substr) Then
CountSubstring = CountSubstring + 1
i = InStr(i,str,substr) + Len(substr) - 1
End If
Else
Exit For
End If
Next
End Function
WScript.StdOut.Write CountSubstring("the three truths","th") & vbCrLf
WScript.StdOut.Write CountSubstring("ababababab","abab") & vbCrLf
|
Ensure the translated VB code behaves exactly like the original Python snippet. | from collections import deque
def prime_digits_sum(r):
q = deque([(r, 0)])
while q:
r, n = q.popleft()
for d in 2, 3, 5, 7:
if d >= r:
if d == r: yield n + d
break
q.append((r - d, (n + d) * 10))
print(*prime_digits_sum(13))
| Imports System
Imports System.Console
Imports LI = System.Collections.Generic.SortedSet(Of Integer)
Module Module1
Function unl(ByVal res As LI, ByVal lst As LI, ByVal lft As Integer, ByVal Optional mul As Integer = 1, ByVal Optional vlu As Integer = 0) As LI
If lft = 0 Then
res.Add(vlu)
ElseIf lft > 0 Then
For Each itm As Integer In lst
res = unl(res, lst, lft - itm, mul * 10, vlu + itm * mul)
Next
End If
Return res
End Function
Sub Main(ByVal args As String())
WriteLine(string.Join(" ",
unl(new LI From {}, new LI From { 2, 3, 5, 7 }, 13)))
End Sub
End Module
|
Change the following Python code into VB without altering its purpose. | from collections import deque
def prime_digits_sum(r):
q = deque([(r, 0)])
while q:
r, n = q.popleft()
for d in 2, 3, 5, 7:
if d >= r:
if d == r: yield n + d
break
q.append((r - d, (n + d) * 10))
print(*prime_digits_sum(13))
| Imports System
Imports System.Console
Imports LI = System.Collections.Generic.SortedSet(Of Integer)
Module Module1
Function unl(ByVal res As LI, ByVal lst As LI, ByVal lft As Integer, ByVal Optional mul As Integer = 1, ByVal Optional vlu As Integer = 0) As LI
If lft = 0 Then
res.Add(vlu)
ElseIf lft > 0 Then
For Each itm As Integer In lst
res = unl(res, lst, lft - itm, mul * 10, vlu + itm * mul)
Next
End If
Return res
End Function
Sub Main(ByVal args As String())
WriteLine(string.Join(" ",
unl(new LI From {}, new LI From { 2, 3, 5, 7 }, 13)))
End Sub
End Module
|
Rewrite this program in VB while keeping its functionality equivalent to the Python version. | from collections import deque
def prime_digits_sum(r):
q = deque([(r, 0)])
while q:
r, n = q.popleft()
for d in 2, 3, 5, 7:
if d >= r:
if d == r: yield n + d
break
q.append((r - d, (n + d) * 10))
print(*prime_digits_sum(13))
| Imports System
Imports System.Console
Imports LI = System.Collections.Generic.SortedSet(Of Integer)
Module Module1
Function unl(ByVal res As LI, ByVal lst As LI, ByVal lft As Integer, ByVal Optional mul As Integer = 1, ByVal Optional vlu As Integer = 0) As LI
If lft = 0 Then
res.Add(vlu)
ElseIf lft > 0 Then
For Each itm As Integer In lst
res = unl(res, lst, lft - itm, mul * 10, vlu + itm * mul)
Next
End If
Return res
End Function
Sub Main(ByVal args As String())
WriteLine(string.Join(" ",
unl(new LI From {}, new LI From { 2, 3, 5, 7 }, 13)))
End Sub
End Module
|
Change the programming language of this snippet from Python to VB without modifying what it does. | import sys, datetime, shutil
if len(sys.argv) == 1:
try:
with open('notes.txt', 'r') as f:
shutil.copyfileobj(f, sys.stdout)
except IOError:
pass
else:
with open('notes.txt', 'a') as f:
f.write(datetime.datetime.now().isoformat() + '\n')
f.write("\t%s\n" % ' '.join(sys.argv[1:]))
| Imports System.IO
Module Notes
Function Main(ByVal cmdArgs() As String) As Integer
Try
If cmdArgs.Length = 0 Then
Using sr As New StreamReader("NOTES.TXT")
Console.WriteLine(sr.ReadToEnd)
End Using
Else
Using sw As New StreamWriter("NOTES.TXT", True)
sw.WriteLine(Date.Now.ToString())
sw.WriteLine("{0}{1}", ControlChars.Tab, String.Join(" ", cmdArgs))
End Using
End If
Catch
End Try
End Function
End Module
|
Can you help me rewrite this code in VB instead of Python, keeping it the same logically? | >>> import os
>>> os.path.commonpath(['/home/user1/tmp/coverage/test',
'/home/user1/tmp/covert/operator', '/home/user1/tmp/coven/members'])
'/home/user1/tmp'
| Public Function CommonDirectoryPath(ParamArray Paths()) As String
Dim v As Variant
Dim Path() As String, s As String
Dim i As Long, j As Long, k As Long
Const PATH_SEPARATOR As String = "/"
For Each v In Paths
ReDim Preserve Path(0 To i)
Path(i) = v
i = i + 1
Next v
k = 1
Do
For i = 0 To UBound(Path)
If i Then
If InStr(k, Path(i), PATH_SEPARATOR) <> j Then
Exit Do
ElseIf Left$(Path(i), j) <> Left$(Path(0), j) Then
Exit Do
End If
Else
j = InStr(k, Path(i), PATH_SEPARATOR)
If j = 0 Then
Exit Do
End If
End If
Next i
s = Left$(Path(0), j + CLng(k <> 1))
k = j + 1
Loop
CommonDirectoryPath = s
End Function
Sub Main()
Debug.Assert CommonDirectoryPath( _
"/home/user1/tmp/coverage/test", _
"/home/user1/tmp/covert/operator", _
"/home/user1/tmp/coven/members") = _
"/home/user1/tmp"
Debug.Assert CommonDirectoryPath( _
"/home/user1/tmp/coverage/test", _
"/home/user1/tmp/covert/operator", _
"/home/user1/tmp/coven/members", _
"/home/user1/abc/coven/members") = _
"/home/user1"
Debug.Assert CommonDirectoryPath( _
"/home/user1/tmp/coverage/test", _
"/hope/user1/tmp/covert/operator", _
"/home/user1/tmp/coven/members") = _
"/"
End Sub
|
Write the same algorithm in VB as shown in this C# implementation. | static void bitwise(int a, int b)
{
Console.WriteLine("a and b is {0}", a & b);
Console.WriteLine("a or b is {0}", a | b);
Console.WriteLine("a xor b is {0}", a ^ b);
Console.WriteLine("not a is {0}", ~a);
Console.WriteLine("a lshift b is {0}", a << b);
Console.WriteLine("a arshift b is {0}", a >> b);
uint c = (uint)a;
Console.WriteLine("c rshift b is {0}", c >> b);
}
| Debug.Print Hex(&HF0F0 And &HFF00)
Debug.Print Hex(&HF0F0 Or &HFF00)
Debug.Print Hex(&HF0F0 Xor &HFF00)
Debug.Print Hex(Not &HF0F0)
Debug.Print Hex(&HF0F0 Eqv &HFF00)
Debug.Print Hex(&HF0F0 Imp &HFF00)
|
Produce a functionally identical VB code for the snippet given in C#. | using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
public class DragonCurve : Form
{
private List<int> turns;
private double startingAngle, side;
public DragonCurve(int iter)
{
Size = new Size(800, 600);
StartPosition = FormStartPosition.CenterScreen;
DoubleBuffered = true;
BackColor = Color.White;
startingAngle = -iter * (Math.PI / 4);
side = 400 / Math.Pow(2, iter / 2.0);
turns = getSequence(iter);
}
private List<int> getSequence(int iter)
{
var turnSequence = new List<int>();
for (int i = 0; i < iter; i++)
{
var copy = new List<int>(turnSequence);
copy.Reverse();
turnSequence.Add(1);
foreach (int turn in copy)
{
turnSequence.Add(-turn);
}
}
return turnSequence;
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
double angle = startingAngle;
int x1 = 230, y1 = 350;
int x2 = x1 + (int)(Math.Cos(angle) * side);
int y2 = y1 + (int)(Math.Sin(angle) * side);
e.Graphics.DrawLine(Pens.Black, x1, y1, x2, y2);
x1 = x2;
y1 = y2;
foreach (int turn in turns)
{
angle += turn * (Math.PI / 2);
x2 = x1 + (int)(Math.Cos(angle) * side);
y2 = y1 + (int)(Math.Sin(angle) * side);
e.Graphics.DrawLine(Pens.Black, x1, y1, x2, y2);
x1 = x2;
y1 = y2;
}
}
[STAThread]
static void Main()
{
Application.Run(new DragonCurve(14));
}
}
| option explicit
const pi180= 0.01745329251994329576923690768489
const pi=3.1415926535897932384626433832795
class turtle
dim fso
dim fn
dim svg
dim iang
dim ori
dim incr
dim pdown
dim clr
dim x
dim y
public property let orient(n):ori = n*pi180 :end property
public property let iangle(n):iang= n*pi180 :end property
public sub pd() : pdown=true: end sub
public sub pu() :pdown=FALSE :end sub
public sub rt(i)
ori=ori - i*iang:
end sub
public sub lt(i):
ori=(ori + i*iang)
end sub
public sub bw(l)
x= x+ cos(ori+pi)*l*incr
y= y+ sin(ori+pi)*l*incr
end sub
public sub fw(l)
dim x1,y1
x1=x + cos(ori)*l*incr
y1=y + sin(ori)*l*incr
if pdown then line x,y,x1,y1
x=x1:y=y1
end sub
Private Sub Class_Initialize()
setlocale "us"
initsvg
x=400:y=400:incr=100
ori=90*pi180
iang=90*pi180
clr=0
pdown=true
end sub
Private Sub Class_Terminate()
disply
end sub
private sub line (x,y,x1,y1)
svg.WriteLine "<line x1=""" & x & """ y1= """& y & """ x2=""" & x1& """ y2=""" & y1 & """/>"
end sub
private sub disply()
dim shell
svg.WriteLine "</svg></body></html>"
svg.close
Set shell = CreateObject("Shell.Application")
shell.ShellExecute fn,1,False
end sub
private sub initsvg()
dim scriptpath
Set fso = CreateObject ("Scripting.Filesystemobject")
ScriptPath= Left(WScript.ScriptFullName, InStrRev(WScript.ScriptFullName, "\"))
fn=Scriptpath & "SIERP.HTML"
Set svg = fso.CreateTextFile(fn,True)
if SVG IS nothing then wscript.echo "Can
svg.WriteLine "<!DOCTYPE html>" &vbcrlf & "<html>" &vbcrlf & "<head>"
svg.writeline "<style>" & vbcrlf & "line {stroke:rgb(255,0,0);stroke-width:.5}" &vbcrlf &"</style>"
svg.writeline "</head>"&vbcrlf & "<body>"
svg.WriteLine "<svg xmlns=""http://www.w3.org/2000/svg"" width=""800"" height=""800"" viewBox=""0 0 800 800"">"
end sub
end class
sub dragon(st,le,dir)
if st=0 then x.fw le: exit sub
x.rt dir
dragon st-1, le/1.41421 ,1
x.rt dir*2
dragon st-1, le/1.41421 ,-1
x.rt dir
end sub
dim x
set x=new turtle
x.iangle=45
x.orient=45
x.incr=1
x.x=200:x.y=200
dragon 12,300,1
set x=nothing
|
Rewrite the snippet below in VB so it works the same as the original C# code. | foreach (string readLine in File.ReadLines("FileName"))
DoSomething(readLine);
| $Include "Rapidq.inc"
dim file as qfilestream
if file.open("c:\A Test.txt", fmOpenRead) then
while not File.eof
print File.readline
wend
else
print "Cannot read file"
end if
input "Press enter to exit: ";a$
|
Port the following code from C# to VB with equivalent syntax and logic. | static void InsertAfter(Link prev, int i)
{
if (prev.next != null)
{
prev.next.prev = new Link() { item = i, prev = prev, next = prev.next };
prev.next = prev.next.prev;
}
else
prev.next = new Link() { item = i, prev = prev };
}
| Public Sub Insert(ByVal a As Node(Of T), ByVal b As Node(Of T), ByVal c As T)
Dim node As New Node(Of T)(value)
a.Next = node
node.Previous = a
b.Previous = node
node.Next = b
End Sub
|
Write a version of this C# function in VB with identical behavior. |
using System;
using System.Collections.Generic;
using System.Linq;
namespace QuickSelect
{
internal static class Program
{
#region Static Members
private static void Main()
{
var inputArray = new[] {9, 8, 7, 6, 5, 0, 1, 2, 3, 4};
Console.WriteLine( "Loop quick select 10 times." );
for( var i = 0 ; i < 10 ; i++ )
{
Console.Write( inputArray.NthSmallestElement( i ) );
if( i < 9 )
Console.Write( ", " );
}
Console.WriteLine();
Console.WriteLine( "Just sort 10 elements." );
Console.WriteLine( string.Join( ", ", inputArray.TakeSmallest( 10 ).OrderBy( v => v ).Select( v => v.ToString() ).ToArray() ) );
Console.WriteLine( "Get 4 smallest and sort them." );
Console.WriteLine( string.Join( ", ", inputArray.TakeSmallest( 4 ).OrderBy( v => v ).Select( v => v.ToString() ).ToArray() ) );
Console.WriteLine( "< Press any key >" );
Console.ReadKey();
}
#endregion
}
internal static class ArrayExtension
{
#region Static Members
public static IEnumerable<T> TakeSmallest<T>( this T[] array, int count ) where T : IComparable<T>
{
if( count < 0 )
throw new ArgumentOutOfRangeException( "count", "Count is smaller than 0." );
if( count == 0 )
return new T[0];
if( array.Length <= count )
return array;
return QuickSelectSmallest( array, count - 1 ).Take( count );
}
public static T NthSmallestElement<T>( this T[] array, int n ) where T : IComparable<T>
{
if( n < 0 || n > array.Length - 1 )
throw new ArgumentOutOfRangeException( "n", n, string.Format( "n should be between 0 and {0} it was {1}.", array.Length - 1, n ) );
if( array.Length == 0 )
throw new ArgumentException( "Array is empty.", "array" );
if( array.Length == 1 )
return array[ 0 ];
return QuickSelectSmallest( array, n )[ n ];
}
private static T[] QuickSelectSmallest<T>( T[] input, int n ) where T : IComparable<T>
{
var partiallySortedArray = (T[]) input.Clone();
var startIndex = 0;
var endIndex = input.Length - 1;
var pivotIndex = n;
var r = new Random();
while( endIndex > startIndex )
{
pivotIndex = QuickSelectPartition( partiallySortedArray, startIndex, endIndex, pivotIndex );
if( pivotIndex == n )
break;
if( pivotIndex > n )
endIndex = pivotIndex - 1;
else
startIndex = pivotIndex + 1;
pivotIndex = r.Next( startIndex, endIndex );
}
return partiallySortedArray;
}
private static int QuickSelectPartition<T>( this T[] array, int startIndex, int endIndex, int pivotIndex ) where T : IComparable<T>
{
var pivotValue = array[ pivotIndex ];
array.Swap( pivotIndex, endIndex );
for( var i = startIndex ; i < endIndex ; i++ )
{
if( array[ i ].CompareTo( pivotValue ) > 0 )
continue;
array.Swap( i, startIndex );
startIndex++;
}
array.Swap( endIndex, startIndex );
return startIndex;
}
private static void Swap<T>( this T[] array, int index1, int index2 )
{
if( index1 == index2 )
return;
var temp = array[ index1 ];
array[ index1 ] = array[ index2 ];
array[ index2 ] = temp;
}
#endregion
}
}
| Dim s As Variant
Private Function quick_select(ByRef s As Variant, k As Integer) As Integer
Dim left As Integer, right As Integer, pos As Integer
Dim pivotValue As Integer, tmp As Integer
left = 1: right = UBound(s)
Do While left < right
pivotValue = s(k)
tmp = s(k)
s(k) = s(right)
s(right) = tmp
pos = left
For i = left To right
If s(i) < pivotValue Then
tmp = s(i)
s(i) = s(pos)
s(pos) = tmp
pos = pos + 1
End If
Next i
tmp = s(right)
s(right) = s(pos)
s(pos) = tmp
If pos = k Then
Exit Do
End If
If pos < k Then
left = pos + 1
Else
right = pos - 1
End If
Loop
quick_select = s(k)
End Function
Public Sub main()
Dim r As Integer, i As Integer
s = [{9, 8, 7, 6, 5, 0, 1, 2, 3, 4}]
For i = 1 To 10
r = quick_select(s, i)
Debug.Print IIf(i < 10, r & ", ", "" & r);
Next i
End Sub
|
Convert this C# snippet to VB and keep its semantics consistent. | public static class BaseConverter {
public static long stringToLong(string s, int b) {
if ( b < 2 || b > 36 )
throw new ArgumentException("Base must be between 2 and 36", "b");
checked {
int slen = s.Length;
long result = 0;
bool isNegative = false;
for ( int i = 0; i < slen; i++ ) {
char c = s[i];
int num;
if ( c == '-' ) {
if ( i != 0 )
throw new ArgumentException("A negative sign is allowed only as the first character of the string.", "s");
isNegative = true;
continue;
}
if ( c > 0x2F && c < 0x3A )
num = c - 0x30;
else if ( c > 0x40 && c < 0x5B )
num = c - 0x37;
else if ( c > 0x60 && c < 0x7B )
num = c - 0x57;
else
throw new ArgumentException("The string contains an invalid character '" + c + "'", "s");
if ( num >= b )
throw new ArgumentException("The string contains a character '" + c + "' which is not allowed in base " + b, "s");
result *= b;
result += num;
}
if ( isNegative )
result = -result;
return result;
}
}
public static string longToString(long n, int b) {
if ( b < 2 || b > 36 )
throw new ArgumentException("Base must be between 2 and 36", "b");
if ( b == 10 )
return n.ToString();
checked {
long longBase = b;
StringBuilder sb = new StringBuilder();
if ( n < 0 ) {
n = -n;
sb.Append('-');
}
long div = 1;
while ( n / div >= b )
div *= b;
while ( true ) {
byte digit = (byte) (n / div);
if ( digit < 10 )
sb.Append((char) (digit + 0x30));
else
sb.Append((char) (digit + 0x57));
if ( div == 1 )
break;
n %= div;
div /= b;
}
return sb.ToString();
}
}
}
| Private Function to_base(ByVal number As Long, base As Integer) As String
Dim digits As String, result As String
Dim i As Integer, digit As Integer
digits = "0123456789abcdefghijklmnopqrstuvwxyz"
Do While number > 0
digit = number Mod base
result = Mid(digits, digit + 1, 1) & result
number = number \ base
Loop
to_base = result
End Function
Private Function from_base(number As String, base As Integer) As Long
Dim digits As String, result As Long
Dim i As Integer
digits = "0123456789abcdefghijklmnopqrstuvwxyz"
result = Val(InStr(1, digits, Mid(number, 1, 1), vbTextCompare) - 1)
For i = 2 To Len(number)
result = result * base + Val(InStr(1, digits, Mid(number, i, 1), vbTextCompare) - 1)
Next i
from_base = result
End Function
Public Sub Non_decimal_radices_Convert()
Debug.Print "26 decimal in base 16 is: "; to_base(26, 16); ". Conversely, hexadecimal 1a in decimal is: "; from_base("1a", 16)
End Sub
|
Ensure the translated VB code behaves exactly like the original C# snippet. | using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
namespace RosettaRecursiveDirectory
{
class Program
{
static IEnumerable<FileInfo> TraverseDirectory(string rootPath, Func<FileInfo, bool> Pattern)
{
var directoryStack = new Stack<DirectoryInfo>();
directoryStack.Push(new DirectoryInfo(rootPath));
while (directoryStack.Count > 0)
{
var dir = directoryStack.Pop();
try
{
foreach (var i in dir.GetDirectories())
directoryStack.Push(i);
}
catch (UnauthorizedAccessException) {
continue;
}
foreach (var f in dir.GetFiles().Where(Pattern))
yield return f;
}
}
static void Main(string[] args)
{
foreach (var file in TraverseDirectory(@"C:\Windows", f => f.Extension == ".wmv"))
Console.WriteLine(file.FullName);
Console.WriteLine("Done.");
}
}
}
| Sub printFiles(parentDir As FolderItem, pattern As String)
For i As Integer = 1 To parentDir.Count
If parentDir.Item(i).Directory Then
printFiles(parentDir.Item(i), pattern)
Else
Dim rg as New RegEx
Dim myMatch as RegExMatch
rg.SearchPattern = pattern
myMatch = rg.search(parentDir.Item(i).Name)
If myMatch <> Nil Then Print(parentDir.Item(i).AbsolutePath)
End If
Next
End Sub
|
Change the following C# code into VB without altering its purpose. |
public class Crc32
{
#region Constants
private const UInt32 s_generator = 0xEDB88320;
#endregion
#region Constructors
public Crc32()
{
m_checksumTable = Enumerable.Range(0, 256).Select(i =>
{
var tableEntry = (uint)i;
for (var j = 0; j < 8; ++j)
{
tableEntry = ((tableEntry & 1) != 0)
? (s_generator ^ (tableEntry >> 1))
: (tableEntry >> 1);
}
return tableEntry;
}).ToArray();
}
#endregion
#region Methods
public UInt32 Get<T>(IEnumerable<T> byteStream)
{
try
{
return ~byteStream.Aggregate(0xFFFFFFFF, (checksumRegister, currentByte) =>
(m_checksumTable[(checksumRegister & 0xFF) ^ Convert.ToByte(currentByte)] ^ (checksumRegister >> 8)));
}
catch (FormatException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
catch (InvalidCastException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
catch (OverflowException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
}
#endregion
#region Fields
private readonly UInt32[] m_checksumTable;
#endregion
}
| dim crctbl(255)
const crcc =&hEDB88320
sub gencrctable
for i= 0 to 255
k=i
for j=1 to 8
if k and 1 then
k=(k and &h7fffffff)\2 or (&h40000000 and ((k and &h80000000)<>0))
k=k xor crcc
else
k=(k and &h7fffffff)\2 or (&h40000000 and ((k and &h80000000)<>0))
end if
next
crctbl(i)=k
next
end sub
function crc32 (buf)
dim r,r1,i
r=&hffffffff
for i=1 to len(buf)
r1=(r and &h7fffffff)\&h100 or (&h800000 and (r and &h80000000)<>0)
r=r1 xor crctbl((asc(mid(buf,i,1))xor r) and 255)
next
crc32=r xor &hffffffff
end function
gencrctable
wscript.stdout.writeline hex(crc32("The quick brown fox jumps over the lazy dog"))
|
Maintain the same structure and functionality when rewriting this code in VB. |
public class Crc32
{
#region Constants
private const UInt32 s_generator = 0xEDB88320;
#endregion
#region Constructors
public Crc32()
{
m_checksumTable = Enumerable.Range(0, 256).Select(i =>
{
var tableEntry = (uint)i;
for (var j = 0; j < 8; ++j)
{
tableEntry = ((tableEntry & 1) != 0)
? (s_generator ^ (tableEntry >> 1))
: (tableEntry >> 1);
}
return tableEntry;
}).ToArray();
}
#endregion
#region Methods
public UInt32 Get<T>(IEnumerable<T> byteStream)
{
try
{
return ~byteStream.Aggregate(0xFFFFFFFF, (checksumRegister, currentByte) =>
(m_checksumTable[(checksumRegister & 0xFF) ^ Convert.ToByte(currentByte)] ^ (checksumRegister >> 8)));
}
catch (FormatException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
catch (InvalidCastException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
catch (OverflowException e)
{
throw new CrcException("Could not read the stream out as bytes.", e);
}
}
#endregion
#region Fields
private readonly UInt32[] m_checksumTable;
#endregion
}
| dim crctbl(255)
const crcc =&hEDB88320
sub gencrctable
for i= 0 to 255
k=i
for j=1 to 8
if k and 1 then
k=(k and &h7fffffff)\2 or (&h40000000 and ((k and &h80000000)<>0))
k=k xor crcc
else
k=(k and &h7fffffff)\2 or (&h40000000 and ((k and &h80000000)<>0))
end if
next
crctbl(i)=k
next
end sub
function crc32 (buf)
dim r,r1,i
r=&hffffffff
for i=1 to len(buf)
r1=(r and &h7fffffff)\&h100 or (&h800000 and (r and &h80000000)<>0)
r=r1 xor crctbl((asc(mid(buf,i,1))xor r) and 255)
next
crc32=r xor &hffffffff
end function
gencrctable
wscript.stdout.writeline hex(crc32("The quick brown fox jumps over the lazy dog"))
|
Keep all operations the same but rewrite the snippet in VB. | public class MyClass
{
public MyClass()
{
}
public void SomeMethod()
{
}
private int _variable;
public int Variable
{
get { return _variable; }
set { _variable = value; }
}
public static void Main()
{
MyClass instance = new MyClass();
instance.SomeMethod();
instance.Variable = 99;
System.Console.WriteLine( "Variable=" + instance.Variable.ToString() );
}
}
| Class NumberContainer
Private TheNumber As Integer
Sub Constructor(InitialNumber As Integer)
TheNumber = InitialNumber
End Sub
Function Number() As Integer
Return TheNumber
End Function
Sub Number(Assigns NewNumber As Integer)
TheNumber = NewNumber
End Sub
End Class
|
Change the following C# code into VB without altering its purpose. | using System;
using System.Collections.Generic;
public class KaprekarNumbers {
public static void Main() {
int count = 0;
foreach ( ulong i in _kaprekarGenerator(999999) ) {
Console.WriteLine(i);
count++;
}
Console.WriteLine("There are {0} Kaprekar numbers less than 1000000.", count);
}
private static IEnumerable<ulong> _kaprekarGenerator(ulong max) {
ulong next = 1;
yield return next;
for ( next = 2; next <= max; next++ ) {
ulong square = next * next;
for ( ulong check = 10; check <= 10000000000000000000; check *= 10 ) {
if ( square <= check )
break;
ulong r = square % check;
ulong q = (square - r) / check;
if ( r != 0 && q + r == next ) {
yield return next;
break;
}
}
}
}
}
| Module Module1
ReadOnly max As ULong = 1000000
Function Kaprekar(n As ULong) As Boolean
If n = 1 Then Return True
Dim sq = n * n
Dim sq_str = Str(sq)
Dim l = Len(sq_str)
For x = l - 1 To 1 Step -1
If sq_str(x) = "0" Then
l = l - 1
Else
Exit For
End If
Next
For x = 1 To l - 1
Dim p2 = Val(Mid(sq_str, x + 1))
If p2 > n Then
Continue For
End If
Dim p1 = Val(Left(sq_str, x))
If p1 > n Then Return False
If (p1 + p2) = n Then Return True
Next
Return False
End Function
Sub Main()
Dim count = 0
Console.WriteLine("Kaprekar numbers below 10000")
For n = 1 To max - 1
If Kaprekar(n) Then
count = count + 1
If n < 10000 Then
Console.WriteLine("{0,2} {1,4}", count, n)
End If
End If
Next
Console.WriteLine()
Console.WriteLine("{0} numbers below {1} are kaprekar numbers", count, max)
End Sub
End Module
|
Please provide an equivalent version of this C# code in VB. | using System;
using System.Collections.Generic;
public class KaprekarNumbers {
public static void Main() {
int count = 0;
foreach ( ulong i in _kaprekarGenerator(999999) ) {
Console.WriteLine(i);
count++;
}
Console.WriteLine("There are {0} Kaprekar numbers less than 1000000.", count);
}
private static IEnumerable<ulong> _kaprekarGenerator(ulong max) {
ulong next = 1;
yield return next;
for ( next = 2; next <= max; next++ ) {
ulong square = next * next;
for ( ulong check = 10; check <= 10000000000000000000; check *= 10 ) {
if ( square <= check )
break;
ulong r = square % check;
ulong q = (square - r) / check;
if ( r != 0 && q + r == next ) {
yield return next;
break;
}
}
}
}
}
| Module Module1
ReadOnly max As ULong = 1000000
Function Kaprekar(n As ULong) As Boolean
If n = 1 Then Return True
Dim sq = n * n
Dim sq_str = Str(sq)
Dim l = Len(sq_str)
For x = l - 1 To 1 Step -1
If sq_str(x) = "0" Then
l = l - 1
Else
Exit For
End If
Next
For x = 1 To l - 1
Dim p2 = Val(Mid(sq_str, x + 1))
If p2 > n Then
Continue For
End If
Dim p1 = Val(Left(sq_str, x))
If p1 > n Then Return False
If (p1 + p2) = n Then Return True
Next
Return False
End Function
Sub Main()
Dim count = 0
Console.WriteLine("Kaprekar numbers below 10000")
For n = 1 To max - 1
If Kaprekar(n) Then
count = count + 1
If n < 10000 Then
Console.WriteLine("{0,2} {1,4}", count, n)
End If
End If
Next
Console.WriteLine()
Console.WriteLine("{0} numbers below {1} are kaprekar numbers", count, max)
End Sub
End Module
|
Port the provided C# code into VB while preserving the original functionality. | using System;
using System.Collections.Generic;
using System.Linq;
namespace HofstadterFigureFigure
{
class HofstadterFigureFigure
{
readonly List<int> _r = new List<int>() {1};
readonly List<int> _s = new List<int>();
public IEnumerable<int> R()
{
int iR = 0;
while (true)
{
if (iR >= _r.Count)
{
Advance();
}
yield return _r[iR++];
}
}
public IEnumerable<int> S()
{
int iS = 0;
while (true)
{
if (iS >= _s.Count)
{
Advance();
}
yield return _s[iS++];
}
}
private void Advance()
{
int rCount = _r.Count;
int oldR = _r[rCount - 1];
int sVal;
switch (rCount)
{
case 1:
sVal = 2;
break;
case 2:
sVal = 4;
break;
default:
sVal = _s[rCount - 1];
break;
}
_r.Add(_r[rCount - 1] + sVal);
int newR = _r[rCount];
for (int iS = oldR + 1; iS < newR; iS++)
{
_s.Add(iS);
}
}
}
class Program
{
static void Main()
{
var hff = new HofstadterFigureFigure();
var rs = hff.R();
var arr = rs.Take(40).ToList();
foreach(var v in arr.Take(10))
{
Console.WriteLine("{0}", v);
}
var hs = new HashSet<int>(arr);
hs.UnionWith(hff.S().Take(960));
Console.WriteLine(hs.Count == 1000 ? "Verified" : "Oops! Something's wrong!");
}
}
}
| Private Function ffr(n As Long) As Long
Dim R As New Collection
Dim S As New Collection
R.Add 1
S.Add 2
For i = 2 To n
R.Add R(i - 1) + S(i - 1)
For j = S(S.Count) + 1 To R(i) - 1
S.Add j
Next j
For j = R(i) + 1 To R(i) + S(i - 1)
S.Add j
Next j
Next i
ffr = R(n)
Set R = Nothing
Set S = Nothing
End Function
Private Function ffs(n As Long) As Long
Dim R As New Collection
Dim S As New Collection
R.Add 1
S.Add 2
For i = 2 To n
R.Add R(i - 1) + S(i - 1)
For j = S(S.Count) + 1 To R(i) - 1
S.Add j
Next j
For j = R(i) + 1 To R(i) + S(i - 1)
S.Add j
Next j
If S.Count >= n Then Exit For
Next i
ffs = S(n)
Set R = Nothing
Set S = Nothing
End Function
Public Sub main()
Dim i As Long
Debug.Print "The first ten values of R are:"
For i = 1 To 10
Debug.Print ffr(i);
Next i
Debug.Print
Dim x As New Collection
For i = 1 To 1000
x.Add i, CStr(i)
Next i
For i = 1 To 40
x.Remove CStr(ffr(i))
Next i
For i = 1 To 960
x.Remove CStr(ffs(i))
Next i
Debug.Print "The first 40 values of ffr plus the first 960 values of ffs "
Debug.Print "include all the integers from 1 to 1000 exactly once is "; Format(x.Count = 0)
End Sub
|
Translate this program into VB but keep the logic exactly as in C#. | using System;
using System.Collections.Generic;
using System.Linq;
namespace HofstadterFigureFigure
{
class HofstadterFigureFigure
{
readonly List<int> _r = new List<int>() {1};
readonly List<int> _s = new List<int>();
public IEnumerable<int> R()
{
int iR = 0;
while (true)
{
if (iR >= _r.Count)
{
Advance();
}
yield return _r[iR++];
}
}
public IEnumerable<int> S()
{
int iS = 0;
while (true)
{
if (iS >= _s.Count)
{
Advance();
}
yield return _s[iS++];
}
}
private void Advance()
{
int rCount = _r.Count;
int oldR = _r[rCount - 1];
int sVal;
switch (rCount)
{
case 1:
sVal = 2;
break;
case 2:
sVal = 4;
break;
default:
sVal = _s[rCount - 1];
break;
}
_r.Add(_r[rCount - 1] + sVal);
int newR = _r[rCount];
for (int iS = oldR + 1; iS < newR; iS++)
{
_s.Add(iS);
}
}
}
class Program
{
static void Main()
{
var hff = new HofstadterFigureFigure();
var rs = hff.R();
var arr = rs.Take(40).ToList();
foreach(var v in arr.Take(10))
{
Console.WriteLine("{0}", v);
}
var hs = new HashSet<int>(arr);
hs.UnionWith(hff.S().Take(960));
Console.WriteLine(hs.Count == 1000 ? "Verified" : "Oops! Something's wrong!");
}
}
}
| Private Function ffr(n As Long) As Long
Dim R As New Collection
Dim S As New Collection
R.Add 1
S.Add 2
For i = 2 To n
R.Add R(i - 1) + S(i - 1)
For j = S(S.Count) + 1 To R(i) - 1
S.Add j
Next j
For j = R(i) + 1 To R(i) + S(i - 1)
S.Add j
Next j
Next i
ffr = R(n)
Set R = Nothing
Set S = Nothing
End Function
Private Function ffs(n As Long) As Long
Dim R As New Collection
Dim S As New Collection
R.Add 1
S.Add 2
For i = 2 To n
R.Add R(i - 1) + S(i - 1)
For j = S(S.Count) + 1 To R(i) - 1
S.Add j
Next j
For j = R(i) + 1 To R(i) + S(i - 1)
S.Add j
Next j
If S.Count >= n Then Exit For
Next i
ffs = S(n)
Set R = Nothing
Set S = Nothing
End Function
Public Sub main()
Dim i As Long
Debug.Print "The first ten values of R are:"
For i = 1 To 10
Debug.Print ffr(i);
Next i
Debug.Print
Dim x As New Collection
For i = 1 To 1000
x.Add i, CStr(i)
Next i
For i = 1 To 40
x.Remove CStr(ffr(i))
Next i
For i = 1 To 960
x.Remove CStr(ffs(i))
Next i
Debug.Print "The first 40 values of ffr plus the first 960 values of ffs "
Debug.Print "include all the integers from 1 to 1000 exactly once is "; Format(x.Count = 0)
End Sub
|
Translate the given C# code snippet into VB without altering its behavior. | static int Fib(int n)
{
if (n < 0) throw new ArgumentException("Must be non negativ", "n");
Func<int, int> fib = null;
fib = p => p > 1 ? fib(p - 2) + fib(p - 1) : p;
return fib(n);
}
| Sub Main()
Debug.Print F(-10)
Debug.Print F(10)
End Sub
Private Function F(N As Long) As Variant
If N < 0 Then
F = "Error. Negative argument"
ElseIf N <= 1 Then
F = N
Else
F = F(N - 1) + F(N - 2)
End If
End Function
|
Convert this C# snippet to VB and keep its semantics consistent. | using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
public class TuringMachine
{
public static async Task Main() {
var fiveStateBusyBeaver = new TuringMachine("A", '0', "H").WithTransitions(
("A", '0', '1', Right, "B"),
("A", '1', '1', Left, "C"),
("B", '0', '1', Right, "C"),
("B", '1', '1', Right, "B"),
("C", '0', '1', Right, "D"),
("C", '1', '0', Left, "E"),
("D", '0', '1', Left, "A"),
("D", '1', '1', Left, "D"),
("E", '0', '1', Stay, "H"),
("E", '1', '0', Left, "A")
);
var busyBeaverTask = fiveStateBusyBeaver.TimeAsync();
var incrementer = new TuringMachine("q0", 'B', "qf").WithTransitions(
("q0", '1', '1', Right, "q0"),
("q0", 'B', '1', Stay, "qf")
)
.WithInput("111");
foreach (var _ in incrementer.Run()) PrintLine(incrementer);
PrintResults(incrementer);
var threeStateBusyBeaver = new TuringMachine("a", '0', "halt").WithTransitions(
("a", '0', '1', Right, "b"),
("a", '1', '1', Left, "c"),
("b", '0', '1', Left, "a"),
("b", '1', '1', Right, "b"),
("c", '0', '1', Left, "b"),
("c", '1', '1', Stay, "halt")
);
foreach (var _ in threeStateBusyBeaver.Run()) PrintLine(threeStateBusyBeaver);
PrintResults(threeStateBusyBeaver);
var sorter = new TuringMachine("A", '*', "X").WithTransitions(
("A", 'a', 'a', Right, "A"),
("A", 'b', 'B', Right, "B"),
("A", '*', '*', Left, "E"),
("B", 'a', 'a', Right, "B"),
("B", 'b', 'b', Right, "B"),
("B", '*', '*', Left, "C"),
("C", 'a', 'b', Left, "D"),
("C", 'b', 'b', Left, "C"),
("C", 'B', 'b', Left, "E"),
("D", 'a', 'a', Left, "D"),
("D", 'b', 'b', Left, "D"),
("D", 'B', 'a', Right, "A"),
("E", 'a', 'a', Left, "E"),
("E", '*', '*', Right, "X")
)
.WithInput("babbababaa");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
sorter.Reset().WithInput("bbbababaaabba");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
Console.WriteLine(await busyBeaverTask);
PrintResults(fiveStateBusyBeaver);
void PrintLine(TuringMachine tm) => Console.WriteLine(tm.TapeString + "\tState " + tm.State);
void PrintResults(TuringMachine tm) {
Console.WriteLine($"End state: {tm.State} = {(tm.Success ? "Success" : "Failure")}");
Console.WriteLine(tm.Steps + " steps");
Console.WriteLine("tape length: " + tm.TapeLength);
Console.WriteLine();
}
}
public const int Left = -1, Stay = 0, Right = 1;
private readonly Tape tape;
private readonly string initialState;
private readonly HashSet<string> terminatingStates;
private Dictionary<(string state, char read), (char write, int move, string toState)> transitions;
public TuringMachine(string initialState, char blankSymbol, params string[] terminatingStates) {
State = this.initialState = initialState;
tape = new Tape(blankSymbol);
this.terminatingStates = terminatingStates.ToHashSet();
}
public TuringMachine WithTransitions(
params (string state, char read, char write, int move, string toState)[] transitions)
{
this.transitions = transitions.ToDictionary(k => (k.state, k.read), k => (k.write, k.move, k.toState));
return this;
}
public TuringMachine Reset() {
State = initialState;
Steps = 0;
tape.Reset();
return this;
}
public TuringMachine WithInput(string input) {
tape.Input(input);
return this;
}
public int Steps { get; private set; }
public string State { get; private set; }
public bool Success => terminatingStates.Contains(State);
public int TapeLength => tape.Length;
public string TapeString => tape.ToString();
public IEnumerable<string> Run() {
yield return State;
while (Step()) yield return State;
}
public async Task<TimeSpan> TimeAsync(CancellationToken cancel = default) {
var chrono = Stopwatch.StartNew();
await RunAsync(cancel);
chrono.Stop();
return chrono.Elapsed;
}
public Task RunAsync(CancellationToken cancel = default)
=> Task.Run(() => {
while (Step()) cancel.ThrowIfCancellationRequested();
});
private bool Step() {
if (!transitions.TryGetValue((State, tape.Current), out var action)) return false;
tape.Current = action.write;
tape.Move(action.move);
State = action.toState;
Steps++;
return true;
}
private class Tape
{
private List<char> forwardTape = new List<char>(), backwardTape = new List<char>();
private int head = 0;
private char blank;
public Tape(char blankSymbol) => forwardTape.Add(blank = blankSymbol);
public void Reset() {
backwardTape.Clear();
forwardTape.Clear();
head = 0;
forwardTape.Add(blank);
}
public void Input(string input) {
Reset();
forwardTape.Clear();
forwardTape.AddRange(input);
}
public void Move(int direction) {
head += direction;
if (head >= 0 && forwardTape.Count <= head) forwardTape.Add(blank);
if (head < 0 && backwardTape.Count <= ~head) backwardTape.Add(blank);
}
public char Current {
get => head < 0 ? backwardTape[~head] : forwardTape[head];
set {
if (head < 0) backwardTape[~head] = value;
else forwardTape[head] = value;
}
}
public int Length => backwardTape.Count + forwardTape.Count;
public override string ToString() {
int h = (head < 0 ? ~head : backwardTape.Count + head) * 2 + 1;
var builder = new StringBuilder(" ", Length * 2 + 1);
if (backwardTape.Count > 0) {
builder.Append(string.Join(" ", backwardTape)).Append(" ");
if (head < 0) (builder[h + 1], builder[h - 1]) = ('(', ')');
for (int l = 0, r = builder.Length - 1; l < r; l++, r--) (builder[l], builder[r]) = (builder[r], builder[l]);
}
builder.Append(string.Join(" ", forwardTape)).Append(" ");
if (head >= 0) (builder[h - 1], builder[h + 1]) = ('(', ')');
return builder.ToString();
}
}
}
| Option Base 1
Public Enum sett
name_ = 1
initState
endState
blank
rules
End Enum
Public incrementer As Variant, threeStateBB As Variant, fiveStateBB As Variant
Private Sub init()
incrementer = Array("Simple incrementer", _
"q0", _
"qf", _
"B", _
Array( _
Array("q0", "1", "1", "right", "q0"), _
Array("q0", "B", "1", "stay", "qf")))
threeStateBB = Array("Three-state busy beaver", _
"a", _
"halt", _
"0", _
Array( _
Array("a", "0", "1", "right", "b"), _
Array("a", "1", "1", "left", "c"), _
Array("b", "0", "1", "left", "a"), _
Array("b", "1", "1", "right", "b"), _
Array("c", "0", "1", "left", "b"), _
Array("c", "1", "1", "stay", "halt")))
fiveStateBB = Array("Five-state busy beaver", _
"A", _
"H", _
"0", _
Array( _
Array("A", "0", "1", "right", "B"), _
Array("A", "1", "1", "left", "C"), _
Array("B", "0", "1", "right", "C"), _
Array("B", "1", "1", "right", "B"), _
Array("C", "0", "1", "right", "D"), _
Array("C", "1", "0", "left", "E"), _
Array("D", "0", "1", "left", "A"), _
Array("D", "1", "1", "left", "D"), _
Array("E", "0", "1", "stay", "H"), _
Array("E", "1", "0", "left", "A")))
End Sub
Private Sub show(state As String, headpos As Long, tape As Collection)
Debug.Print " "; state; String$(7 - Len(state), " "); "| ";
For p = 1 To tape.Count
Debug.Print IIf(p = headpos, "[" & tape(p) & "]", " " & tape(p) & " ");
Next p
Debug.Print
End Sub
Private Sub UTM(machine As Variant, tape As Collection, Optional countOnly As Long = 0)
Dim state As String: state = machine(initState)
Dim headpos As Long: headpos = 1
Dim counter As Long, rule As Variant
Debug.Print machine(name_); vbCrLf; String$(Len(machine(name_)), "=")
If Not countOnly Then Debug.Print " State | Tape [head]" & vbCrLf & "---------------------"
Do While True
If headpos > tape.Count Then
tape.Add machine(blank)
Else
If headpos < 1 Then
tape.Add machine(blank), Before:=1
headpos = 1
End If
End If
If Not countOnly Then show state, headpos, tape
For i = LBound(machine(rules)) To UBound(machine(rules))
rule = machine(rules)(i)
If rule(1) = state And rule(2) = tape(headpos) Then
tape.Remove headpos
If headpos > tape.Count Then
tape.Add rule(3)
Else
tape.Add rule(3), Before:=headpos
End If
If rule(4) = "left" Then headpos = headpos - 1
If rule(4) = "right" Then headpos = headpos + 1
state = rule(5)
Exit For
End If
Next i
counter = counter + 1
If counter Mod 100000 = 0 Then
Debug.Print counter
DoEvents
DoEvents
End If
If state = machine(endState) Then Exit Do
Loop
DoEvents
If countOnly Then
Debug.Print "Steps taken: ", counter
Else
show state, headpos, tape
Debug.Print
End If
End Sub
Public Sub main()
init
Dim tap As New Collection
tap.Add "1": tap.Add "1": tap.Add "1"
UTM incrementer, tap
Set tap = New Collection
UTM threeStateBB, tap
Set tap = New Collection
UTM fiveStateBB, tap, countOnly:=-1
End Sub
|
Port the following code from C# to VB with equivalent syntax and logic. | using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
public class TuringMachine
{
public static async Task Main() {
var fiveStateBusyBeaver = new TuringMachine("A", '0', "H").WithTransitions(
("A", '0', '1', Right, "B"),
("A", '1', '1', Left, "C"),
("B", '0', '1', Right, "C"),
("B", '1', '1', Right, "B"),
("C", '0', '1', Right, "D"),
("C", '1', '0', Left, "E"),
("D", '0', '1', Left, "A"),
("D", '1', '1', Left, "D"),
("E", '0', '1', Stay, "H"),
("E", '1', '0', Left, "A")
);
var busyBeaverTask = fiveStateBusyBeaver.TimeAsync();
var incrementer = new TuringMachine("q0", 'B', "qf").WithTransitions(
("q0", '1', '1', Right, "q0"),
("q0", 'B', '1', Stay, "qf")
)
.WithInput("111");
foreach (var _ in incrementer.Run()) PrintLine(incrementer);
PrintResults(incrementer);
var threeStateBusyBeaver = new TuringMachine("a", '0', "halt").WithTransitions(
("a", '0', '1', Right, "b"),
("a", '1', '1', Left, "c"),
("b", '0', '1', Left, "a"),
("b", '1', '1', Right, "b"),
("c", '0', '1', Left, "b"),
("c", '1', '1', Stay, "halt")
);
foreach (var _ in threeStateBusyBeaver.Run()) PrintLine(threeStateBusyBeaver);
PrintResults(threeStateBusyBeaver);
var sorter = new TuringMachine("A", '*', "X").WithTransitions(
("A", 'a', 'a', Right, "A"),
("A", 'b', 'B', Right, "B"),
("A", '*', '*', Left, "E"),
("B", 'a', 'a', Right, "B"),
("B", 'b', 'b', Right, "B"),
("B", '*', '*', Left, "C"),
("C", 'a', 'b', Left, "D"),
("C", 'b', 'b', Left, "C"),
("C", 'B', 'b', Left, "E"),
("D", 'a', 'a', Left, "D"),
("D", 'b', 'b', Left, "D"),
("D", 'B', 'a', Right, "A"),
("E", 'a', 'a', Left, "E"),
("E", '*', '*', Right, "X")
)
.WithInput("babbababaa");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
sorter.Reset().WithInput("bbbababaaabba");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
Console.WriteLine(await busyBeaverTask);
PrintResults(fiveStateBusyBeaver);
void PrintLine(TuringMachine tm) => Console.WriteLine(tm.TapeString + "\tState " + tm.State);
void PrintResults(TuringMachine tm) {
Console.WriteLine($"End state: {tm.State} = {(tm.Success ? "Success" : "Failure")}");
Console.WriteLine(tm.Steps + " steps");
Console.WriteLine("tape length: " + tm.TapeLength);
Console.WriteLine();
}
}
public const int Left = -1, Stay = 0, Right = 1;
private readonly Tape tape;
private readonly string initialState;
private readonly HashSet<string> terminatingStates;
private Dictionary<(string state, char read), (char write, int move, string toState)> transitions;
public TuringMachine(string initialState, char blankSymbol, params string[] terminatingStates) {
State = this.initialState = initialState;
tape = new Tape(blankSymbol);
this.terminatingStates = terminatingStates.ToHashSet();
}
public TuringMachine WithTransitions(
params (string state, char read, char write, int move, string toState)[] transitions)
{
this.transitions = transitions.ToDictionary(k => (k.state, k.read), k => (k.write, k.move, k.toState));
return this;
}
public TuringMachine Reset() {
State = initialState;
Steps = 0;
tape.Reset();
return this;
}
public TuringMachine WithInput(string input) {
tape.Input(input);
return this;
}
public int Steps { get; private set; }
public string State { get; private set; }
public bool Success => terminatingStates.Contains(State);
public int TapeLength => tape.Length;
public string TapeString => tape.ToString();
public IEnumerable<string> Run() {
yield return State;
while (Step()) yield return State;
}
public async Task<TimeSpan> TimeAsync(CancellationToken cancel = default) {
var chrono = Stopwatch.StartNew();
await RunAsync(cancel);
chrono.Stop();
return chrono.Elapsed;
}
public Task RunAsync(CancellationToken cancel = default)
=> Task.Run(() => {
while (Step()) cancel.ThrowIfCancellationRequested();
});
private bool Step() {
if (!transitions.TryGetValue((State, tape.Current), out var action)) return false;
tape.Current = action.write;
tape.Move(action.move);
State = action.toState;
Steps++;
return true;
}
private class Tape
{
private List<char> forwardTape = new List<char>(), backwardTape = new List<char>();
private int head = 0;
private char blank;
public Tape(char blankSymbol) => forwardTape.Add(blank = blankSymbol);
public void Reset() {
backwardTape.Clear();
forwardTape.Clear();
head = 0;
forwardTape.Add(blank);
}
public void Input(string input) {
Reset();
forwardTape.Clear();
forwardTape.AddRange(input);
}
public void Move(int direction) {
head += direction;
if (head >= 0 && forwardTape.Count <= head) forwardTape.Add(blank);
if (head < 0 && backwardTape.Count <= ~head) backwardTape.Add(blank);
}
public char Current {
get => head < 0 ? backwardTape[~head] : forwardTape[head];
set {
if (head < 0) backwardTape[~head] = value;
else forwardTape[head] = value;
}
}
public int Length => backwardTape.Count + forwardTape.Count;
public override string ToString() {
int h = (head < 0 ? ~head : backwardTape.Count + head) * 2 + 1;
var builder = new StringBuilder(" ", Length * 2 + 1);
if (backwardTape.Count > 0) {
builder.Append(string.Join(" ", backwardTape)).Append(" ");
if (head < 0) (builder[h + 1], builder[h - 1]) = ('(', ')');
for (int l = 0, r = builder.Length - 1; l < r; l++, r--) (builder[l], builder[r]) = (builder[r], builder[l]);
}
builder.Append(string.Join(" ", forwardTape)).Append(" ");
if (head >= 0) (builder[h - 1], builder[h + 1]) = ('(', ')');
return builder.ToString();
}
}
}
| Option Base 1
Public Enum sett
name_ = 1
initState
endState
blank
rules
End Enum
Public incrementer As Variant, threeStateBB As Variant, fiveStateBB As Variant
Private Sub init()
incrementer = Array("Simple incrementer", _
"q0", _
"qf", _
"B", _
Array( _
Array("q0", "1", "1", "right", "q0"), _
Array("q0", "B", "1", "stay", "qf")))
threeStateBB = Array("Three-state busy beaver", _
"a", _
"halt", _
"0", _
Array( _
Array("a", "0", "1", "right", "b"), _
Array("a", "1", "1", "left", "c"), _
Array("b", "0", "1", "left", "a"), _
Array("b", "1", "1", "right", "b"), _
Array("c", "0", "1", "left", "b"), _
Array("c", "1", "1", "stay", "halt")))
fiveStateBB = Array("Five-state busy beaver", _
"A", _
"H", _
"0", _
Array( _
Array("A", "0", "1", "right", "B"), _
Array("A", "1", "1", "left", "C"), _
Array("B", "0", "1", "right", "C"), _
Array("B", "1", "1", "right", "B"), _
Array("C", "0", "1", "right", "D"), _
Array("C", "1", "0", "left", "E"), _
Array("D", "0", "1", "left", "A"), _
Array("D", "1", "1", "left", "D"), _
Array("E", "0", "1", "stay", "H"), _
Array("E", "1", "0", "left", "A")))
End Sub
Private Sub show(state As String, headpos As Long, tape As Collection)
Debug.Print " "; state; String$(7 - Len(state), " "); "| ";
For p = 1 To tape.Count
Debug.Print IIf(p = headpos, "[" & tape(p) & "]", " " & tape(p) & " ");
Next p
Debug.Print
End Sub
Private Sub UTM(machine As Variant, tape As Collection, Optional countOnly As Long = 0)
Dim state As String: state = machine(initState)
Dim headpos As Long: headpos = 1
Dim counter As Long, rule As Variant
Debug.Print machine(name_); vbCrLf; String$(Len(machine(name_)), "=")
If Not countOnly Then Debug.Print " State | Tape [head]" & vbCrLf & "---------------------"
Do While True
If headpos > tape.Count Then
tape.Add machine(blank)
Else
If headpos < 1 Then
tape.Add machine(blank), Before:=1
headpos = 1
End If
End If
If Not countOnly Then show state, headpos, tape
For i = LBound(machine(rules)) To UBound(machine(rules))
rule = machine(rules)(i)
If rule(1) = state And rule(2) = tape(headpos) Then
tape.Remove headpos
If headpos > tape.Count Then
tape.Add rule(3)
Else
tape.Add rule(3), Before:=headpos
End If
If rule(4) = "left" Then headpos = headpos - 1
If rule(4) = "right" Then headpos = headpos + 1
state = rule(5)
Exit For
End If
Next i
counter = counter + 1
If counter Mod 100000 = 0 Then
Debug.Print counter
DoEvents
DoEvents
End If
If state = machine(endState) Then Exit Do
Loop
DoEvents
If countOnly Then
Debug.Print "Steps taken: ", counter
Else
show state, headpos, tape
Debug.Print
End If
End Sub
Public Sub main()
init
Dim tap As New Collection
tap.Add "1": tap.Add "1": tap.Add "1"
UTM incrementer, tap
Set tap = New Collection
UTM threeStateBB, tap
Set tap = New Collection
UTM fiveStateBB, tap, countOnly:=-1
End Sub
|
Port the provided C# code into VB while preserving the original functionality. | using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
public class TuringMachine
{
public static async Task Main() {
var fiveStateBusyBeaver = new TuringMachine("A", '0', "H").WithTransitions(
("A", '0', '1', Right, "B"),
("A", '1', '1', Left, "C"),
("B", '0', '1', Right, "C"),
("B", '1', '1', Right, "B"),
("C", '0', '1', Right, "D"),
("C", '1', '0', Left, "E"),
("D", '0', '1', Left, "A"),
("D", '1', '1', Left, "D"),
("E", '0', '1', Stay, "H"),
("E", '1', '0', Left, "A")
);
var busyBeaverTask = fiveStateBusyBeaver.TimeAsync();
var incrementer = new TuringMachine("q0", 'B', "qf").WithTransitions(
("q0", '1', '1', Right, "q0"),
("q0", 'B', '1', Stay, "qf")
)
.WithInput("111");
foreach (var _ in incrementer.Run()) PrintLine(incrementer);
PrintResults(incrementer);
var threeStateBusyBeaver = new TuringMachine("a", '0', "halt").WithTransitions(
("a", '0', '1', Right, "b"),
("a", '1', '1', Left, "c"),
("b", '0', '1', Left, "a"),
("b", '1', '1', Right, "b"),
("c", '0', '1', Left, "b"),
("c", '1', '1', Stay, "halt")
);
foreach (var _ in threeStateBusyBeaver.Run()) PrintLine(threeStateBusyBeaver);
PrintResults(threeStateBusyBeaver);
var sorter = new TuringMachine("A", '*', "X").WithTransitions(
("A", 'a', 'a', Right, "A"),
("A", 'b', 'B', Right, "B"),
("A", '*', '*', Left, "E"),
("B", 'a', 'a', Right, "B"),
("B", 'b', 'b', Right, "B"),
("B", '*', '*', Left, "C"),
("C", 'a', 'b', Left, "D"),
("C", 'b', 'b', Left, "C"),
("C", 'B', 'b', Left, "E"),
("D", 'a', 'a', Left, "D"),
("D", 'b', 'b', Left, "D"),
("D", 'B', 'a', Right, "A"),
("E", 'a', 'a', Left, "E"),
("E", '*', '*', Right, "X")
)
.WithInput("babbababaa");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
sorter.Reset().WithInput("bbbababaaabba");
sorter.Run().Last();
Console.WriteLine("Sorted: " + sorter.TapeString);
PrintResults(sorter);
Console.WriteLine(await busyBeaverTask);
PrintResults(fiveStateBusyBeaver);
void PrintLine(TuringMachine tm) => Console.WriteLine(tm.TapeString + "\tState " + tm.State);
void PrintResults(TuringMachine tm) {
Console.WriteLine($"End state: {tm.State} = {(tm.Success ? "Success" : "Failure")}");
Console.WriteLine(tm.Steps + " steps");
Console.WriteLine("tape length: " + tm.TapeLength);
Console.WriteLine();
}
}
public const int Left = -1, Stay = 0, Right = 1;
private readonly Tape tape;
private readonly string initialState;
private readonly HashSet<string> terminatingStates;
private Dictionary<(string state, char read), (char write, int move, string toState)> transitions;
public TuringMachine(string initialState, char blankSymbol, params string[] terminatingStates) {
State = this.initialState = initialState;
tape = new Tape(blankSymbol);
this.terminatingStates = terminatingStates.ToHashSet();
}
public TuringMachine WithTransitions(
params (string state, char read, char write, int move, string toState)[] transitions)
{
this.transitions = transitions.ToDictionary(k => (k.state, k.read), k => (k.write, k.move, k.toState));
return this;
}
public TuringMachine Reset() {
State = initialState;
Steps = 0;
tape.Reset();
return this;
}
public TuringMachine WithInput(string input) {
tape.Input(input);
return this;
}
public int Steps { get; private set; }
public string State { get; private set; }
public bool Success => terminatingStates.Contains(State);
public int TapeLength => tape.Length;
public string TapeString => tape.ToString();
public IEnumerable<string> Run() {
yield return State;
while (Step()) yield return State;
}
public async Task<TimeSpan> TimeAsync(CancellationToken cancel = default) {
var chrono = Stopwatch.StartNew();
await RunAsync(cancel);
chrono.Stop();
return chrono.Elapsed;
}
public Task RunAsync(CancellationToken cancel = default)
=> Task.Run(() => {
while (Step()) cancel.ThrowIfCancellationRequested();
});
private bool Step() {
if (!transitions.TryGetValue((State, tape.Current), out var action)) return false;
tape.Current = action.write;
tape.Move(action.move);
State = action.toState;
Steps++;
return true;
}
private class Tape
{
private List<char> forwardTape = new List<char>(), backwardTape = new List<char>();
private int head = 0;
private char blank;
public Tape(char blankSymbol) => forwardTape.Add(blank = blankSymbol);
public void Reset() {
backwardTape.Clear();
forwardTape.Clear();
head = 0;
forwardTape.Add(blank);
}
public void Input(string input) {
Reset();
forwardTape.Clear();
forwardTape.AddRange(input);
}
public void Move(int direction) {
head += direction;
if (head >= 0 && forwardTape.Count <= head) forwardTape.Add(blank);
if (head < 0 && backwardTape.Count <= ~head) backwardTape.Add(blank);
}
public char Current {
get => head < 0 ? backwardTape[~head] : forwardTape[head];
set {
if (head < 0) backwardTape[~head] = value;
else forwardTape[head] = value;
}
}
public int Length => backwardTape.Count + forwardTape.Count;
public override string ToString() {
int h = (head < 0 ? ~head : backwardTape.Count + head) * 2 + 1;
var builder = new StringBuilder(" ", Length * 2 + 1);
if (backwardTape.Count > 0) {
builder.Append(string.Join(" ", backwardTape)).Append(" ");
if (head < 0) (builder[h + 1], builder[h - 1]) = ('(', ')');
for (int l = 0, r = builder.Length - 1; l < r; l++, r--) (builder[l], builder[r]) = (builder[r], builder[l]);
}
builder.Append(string.Join(" ", forwardTape)).Append(" ");
if (head >= 0) (builder[h - 1], builder[h + 1]) = ('(', ')');
return builder.ToString();
}
}
}
| Option Base 1
Public Enum sett
name_ = 1
initState
endState
blank
rules
End Enum
Public incrementer As Variant, threeStateBB As Variant, fiveStateBB As Variant
Private Sub init()
incrementer = Array("Simple incrementer", _
"q0", _
"qf", _
"B", _
Array( _
Array("q0", "1", "1", "right", "q0"), _
Array("q0", "B", "1", "stay", "qf")))
threeStateBB = Array("Three-state busy beaver", _
"a", _
"halt", _
"0", _
Array( _
Array("a", "0", "1", "right", "b"), _
Array("a", "1", "1", "left", "c"), _
Array("b", "0", "1", "left", "a"), _
Array("b", "1", "1", "right", "b"), _
Array("c", "0", "1", "left", "b"), _
Array("c", "1", "1", "stay", "halt")))
fiveStateBB = Array("Five-state busy beaver", _
"A", _
"H", _
"0", _
Array( _
Array("A", "0", "1", "right", "B"), _
Array("A", "1", "1", "left", "C"), _
Array("B", "0", "1", "right", "C"), _
Array("B", "1", "1", "right", "B"), _
Array("C", "0", "1", "right", "D"), _
Array("C", "1", "0", "left", "E"), _
Array("D", "0", "1", "left", "A"), _
Array("D", "1", "1", "left", "D"), _
Array("E", "0", "1", "stay", "H"), _
Array("E", "1", "0", "left", "A")))
End Sub
Private Sub show(state As String, headpos As Long, tape As Collection)
Debug.Print " "; state; String$(7 - Len(state), " "); "| ";
For p = 1 To tape.Count
Debug.Print IIf(p = headpos, "[" & tape(p) & "]", " " & tape(p) & " ");
Next p
Debug.Print
End Sub
Private Sub UTM(machine As Variant, tape As Collection, Optional countOnly As Long = 0)
Dim state As String: state = machine(initState)
Dim headpos As Long: headpos = 1
Dim counter As Long, rule As Variant
Debug.Print machine(name_); vbCrLf; String$(Len(machine(name_)), "=")
If Not countOnly Then Debug.Print " State | Tape [head]" & vbCrLf & "---------------------"
Do While True
If headpos > tape.Count Then
tape.Add machine(blank)
Else
If headpos < 1 Then
tape.Add machine(blank), Before:=1
headpos = 1
End If
End If
If Not countOnly Then show state, headpos, tape
For i = LBound(machine(rules)) To UBound(machine(rules))
rule = machine(rules)(i)
If rule(1) = state And rule(2) = tape(headpos) Then
tape.Remove headpos
If headpos > tape.Count Then
tape.Add rule(3)
Else
tape.Add rule(3), Before:=headpos
End If
If rule(4) = "left" Then headpos = headpos - 1
If rule(4) = "right" Then headpos = headpos + 1
state = rule(5)
Exit For
End If
Next i
counter = counter + 1
If counter Mod 100000 = 0 Then
Debug.Print counter
DoEvents
DoEvents
End If
If state = machine(endState) Then Exit Do
Loop
DoEvents
If countOnly Then
Debug.Print "Steps taken: ", counter
Else
show state, headpos, tape
Debug.Print
End If
End Sub
Public Sub main()
init
Dim tap As New Collection
tap.Add "1": tap.Add "1": tap.Add "1"
UTM incrementer, tap
Set tap = New Collection
UTM threeStateBB, tap
Set tap = New Collection
UTM fiveStateBB, tap, countOnly:=-1
End Sub
|
Maintain the same structure and functionality when rewriting this code in VB. | using System;
using System.IO;
class Program {
static void Main(string[] args) {
File.Create("output.txt");
File.Create(@"\output.txt");
Directory.CreateDirectory("docs");
Directory.CreateDirectory(@"\docs");
}
}
| Public Sub create_file()
Dim FileNumber As Integer
FileNumber = FreeFile
MkDir "docs"
Open "docs\output.txt" For Output As #FreeFile
Close #FreeFile
MkDir "C:\docs"
Open "C:\docs\output.txt" For Output As #FreeFile
Close #FreeFile
End Sub
|
Rewrite the snippet below in VB so it works the same as the original C# code. | using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace BaconCipher {
class Program {
private static Dictionary<char, string> codes = new Dictionary<char, string> {
{'a', "AAAAA" }, {'b', "AAAAB" }, {'c', "AAABA" }, {'d', "AAABB" }, {'e', "AABAA" },
{'f', "AABAB" }, {'g', "AABBA" }, {'h', "AABBB" }, {'i', "ABAAA" }, {'j', "ABAAB" },
{'k', "ABABA" }, {'l', "ABABB" }, {'m', "ABBAA" }, {'n', "ABBAB" }, {'o', "ABBBA" },
{'p', "ABBBB" }, {'q', "BAAAA" }, {'r', "BAAAB" }, {'s', "BAABA" }, {'t', "BAABB" },
{'u', "BABAA" }, {'v', "BABAB" }, {'w', "BABBA" }, {'x', "BABBB" }, {'y', "BBAAA" },
{'z', "BBAAB" }, {' ', "BBBAA" },
};
private static string Encode(string plainText, string message) {
string pt = plainText.ToLower();
StringBuilder sb = new StringBuilder();
foreach (char c in pt) {
if ('a' <= c && c <= 'z') sb.Append(codes[c]);
else sb.Append(codes[' ']);
}
string et = sb.ToString();
string mg = message.ToLower();
sb.Length = 0;
int count = 0;
foreach (char c in mg) {
if ('a' <= c && c <= 'z') {
if (et[count] == 'A') sb.Append(c);
else sb.Append((char)(c - 32));
count++;
if (count == et.Length) break;
}
else sb.Append(c);
}
return sb.ToString();
}
private static string Decode(string message) {
StringBuilder sb = new StringBuilder();
foreach (char c in message) {
if ('a' <= c && c <= 'z') sb.Append('A');
else if ('A' <= c && c <= 'Z') sb.Append('B');
}
string et = sb.ToString();
sb.Length = 0;
for (int i = 0; i < et.Length; i += 5) {
string quintet = et.Substring(i, 5);
char key = codes.Where(a => a.Value == quintet).First().Key;
sb.Append(key);
}
return sb.ToString();
}
static void Main(string[] args) {
string plainText = "the quick brown fox jumps over the lazy dog";
string message = "bacon's cipher is a method of steganography created by francis bacon. " +
"this task is to implement a program for encryption and decryption of " +
"plaintext using the simple alphabet of the baconian cipher or some " +
"other kind of representation of this alphabet (make anything signify anything). " +
"the baconian alphabet may optionally be extended to encode all lower " +
"case characters individually and/or adding a few punctuation characters " +
"such as the space.";
string cipherText = Encode(plainText, message);
Console.WriteLine("Cipher text ->\n{0}", cipherText);
string decodedText = Decode(cipherText);
Console.WriteLine("\nHidden text ->\n{0}", decodedText);
}
}
}
| Imports System.Text
Module Module1
ReadOnly CODES As New Dictionary(Of Char, String) From {
{"a", "AAAAA"}, {"b", "AAAAB"}, {"c", "AAABA"}, {"d", "AAABB"}, {"e", "AABAA"},
{"f", "AABAB"}, {"g", "AABBA"}, {"h", "AABBB"}, {"i", "ABAAA"}, {"j", "ABAAB"},
{"k", "ABABA"}, {"l", "ABABB"}, {"m", "ABBAA"}, {"n", "ABBAB"}, {"o", "ABBBA"},
{"p", "ABBBB"}, {"q", "BAAAA"}, {"r", "BAAAB"}, {"s", "BAABA"}, {"t", "BAABB"},
{"u", "BABAA"}, {"v", "BABAB"}, {"w", "BABBA"}, {"x", "BABBB"}, {"y", "BBAAA"},
{"z", "BBAAB"}, {" ", "BBBAA"}
}
Function Encode(plainText As String, message As String) As String
Dim pt = plainText.ToLower()
Dim sb As New StringBuilder()
For Each c In pt
If "a" <= c AndAlso c <= "z" Then
sb.Append(CODES(c))
Else
sb.Append(CODES(" "))
End If
Next
Dim et = sb.ToString()
Dim mg = message.ToLower()
sb.Length = 0
Dim count = 0
For Each c In mg
If "a" <= c AndAlso c <= "z" Then
If et(count) = "A" Then
sb.Append(c)
Else
sb.Append(Chr(Asc(c) - 32))
End If
count += 1
If count = et.Length Then
Exit For
End If
Else
sb.Append(c)
End If
Next
Return sb.ToString()
End Function
Function Decode(message As String) As String
Dim sb As New StringBuilder
For Each c In message
If "a" <= c AndAlso c <= "z" Then
sb.Append("A")
ElseIf "A" <= c AndAlso c <= "Z" Then
sb.Append("B")
End If
Next
Dim et = sb.ToString()
sb.Length = 0
For index = 0 To et.Length - 1 Step 5
Dim quintet = et.Substring(index, 5)
Dim key = CODES.Where(Function(a) a.Value = quintet).First().Key
sb.Append(key)
Next
Return sb.ToString()
End Function
Sub Main()
Dim plainText = "the quick brown fox jumps over the lazy dog"
Dim message =
"bacon
"this task is to implement a program for encryption and decryption of " +
"plaintext using the simple alphabet of the baconian cipher or some " +
"other kind of representation of this alphabet (make anything signify anything). " +
"the baconian alphabet may optionally be extended to encode all lower " +
"case characters individually and/or adding a few punctuation characters " +
"such as the space."
Dim cipherText = Encode(plainText, message)
Console.WriteLine("Cipher text ->" & Environment.NewLine & "{0}", cipherText)
Dim decodedText = Decode(cipherText)
Console.WriteLine(Environment.NewLine & "Hidden text ->" & Environment.NewLine & "{0}", decodedText)
End Sub
End Module
|
Port the provided C# code into VB while preserving the original functionality. | using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace BaconCipher {
class Program {
private static Dictionary<char, string> codes = new Dictionary<char, string> {
{'a', "AAAAA" }, {'b', "AAAAB" }, {'c', "AAABA" }, {'d', "AAABB" }, {'e', "AABAA" },
{'f', "AABAB" }, {'g', "AABBA" }, {'h', "AABBB" }, {'i', "ABAAA" }, {'j', "ABAAB" },
{'k', "ABABA" }, {'l', "ABABB" }, {'m', "ABBAA" }, {'n', "ABBAB" }, {'o', "ABBBA" },
{'p', "ABBBB" }, {'q', "BAAAA" }, {'r', "BAAAB" }, {'s', "BAABA" }, {'t', "BAABB" },
{'u', "BABAA" }, {'v', "BABAB" }, {'w', "BABBA" }, {'x', "BABBB" }, {'y', "BBAAA" },
{'z', "BBAAB" }, {' ', "BBBAA" },
};
private static string Encode(string plainText, string message) {
string pt = plainText.ToLower();
StringBuilder sb = new StringBuilder();
foreach (char c in pt) {
if ('a' <= c && c <= 'z') sb.Append(codes[c]);
else sb.Append(codes[' ']);
}
string et = sb.ToString();
string mg = message.ToLower();
sb.Length = 0;
int count = 0;
foreach (char c in mg) {
if ('a' <= c && c <= 'z') {
if (et[count] == 'A') sb.Append(c);
else sb.Append((char)(c - 32));
count++;
if (count == et.Length) break;
}
else sb.Append(c);
}
return sb.ToString();
}
private static string Decode(string message) {
StringBuilder sb = new StringBuilder();
foreach (char c in message) {
if ('a' <= c && c <= 'z') sb.Append('A');
else if ('A' <= c && c <= 'Z') sb.Append('B');
}
string et = sb.ToString();
sb.Length = 0;
for (int i = 0; i < et.Length; i += 5) {
string quintet = et.Substring(i, 5);
char key = codes.Where(a => a.Value == quintet).First().Key;
sb.Append(key);
}
return sb.ToString();
}
static void Main(string[] args) {
string plainText = "the quick brown fox jumps over the lazy dog";
string message = "bacon's cipher is a method of steganography created by francis bacon. " +
"this task is to implement a program for encryption and decryption of " +
"plaintext using the simple alphabet of the baconian cipher or some " +
"other kind of representation of this alphabet (make anything signify anything). " +
"the baconian alphabet may optionally be extended to encode all lower " +
"case characters individually and/or adding a few punctuation characters " +
"such as the space.";
string cipherText = Encode(plainText, message);
Console.WriteLine("Cipher text ->\n{0}", cipherText);
string decodedText = Decode(cipherText);
Console.WriteLine("\nHidden text ->\n{0}", decodedText);
}
}
}
| Imports System.Text
Module Module1
ReadOnly CODES As New Dictionary(Of Char, String) From {
{"a", "AAAAA"}, {"b", "AAAAB"}, {"c", "AAABA"}, {"d", "AAABB"}, {"e", "AABAA"},
{"f", "AABAB"}, {"g", "AABBA"}, {"h", "AABBB"}, {"i", "ABAAA"}, {"j", "ABAAB"},
{"k", "ABABA"}, {"l", "ABABB"}, {"m", "ABBAA"}, {"n", "ABBAB"}, {"o", "ABBBA"},
{"p", "ABBBB"}, {"q", "BAAAA"}, {"r", "BAAAB"}, {"s", "BAABA"}, {"t", "BAABB"},
{"u", "BABAA"}, {"v", "BABAB"}, {"w", "BABBA"}, {"x", "BABBB"}, {"y", "BBAAA"},
{"z", "BBAAB"}, {" ", "BBBAA"}
}
Function Encode(plainText As String, message As String) As String
Dim pt = plainText.ToLower()
Dim sb As New StringBuilder()
For Each c In pt
If "a" <= c AndAlso c <= "z" Then
sb.Append(CODES(c))
Else
sb.Append(CODES(" "))
End If
Next
Dim et = sb.ToString()
Dim mg = message.ToLower()
sb.Length = 0
Dim count = 0
For Each c In mg
If "a" <= c AndAlso c <= "z" Then
If et(count) = "A" Then
sb.Append(c)
Else
sb.Append(Chr(Asc(c) - 32))
End If
count += 1
If count = et.Length Then
Exit For
End If
Else
sb.Append(c)
End If
Next
Return sb.ToString()
End Function
Function Decode(message As String) As String
Dim sb As New StringBuilder
For Each c In message
If "a" <= c AndAlso c <= "z" Then
sb.Append("A")
ElseIf "A" <= c AndAlso c <= "Z" Then
sb.Append("B")
End If
Next
Dim et = sb.ToString()
sb.Length = 0
For index = 0 To et.Length - 1 Step 5
Dim quintet = et.Substring(index, 5)
Dim key = CODES.Where(Function(a) a.Value = quintet).First().Key
sb.Append(key)
Next
Return sb.ToString()
End Function
Sub Main()
Dim plainText = "the quick brown fox jumps over the lazy dog"
Dim message =
"bacon
"this task is to implement a program for encryption and decryption of " +
"plaintext using the simple alphabet of the baconian cipher or some " +
"other kind of representation of this alphabet (make anything signify anything). " +
"the baconian alphabet may optionally be extended to encode all lower " +
"case characters individually and/or adding a few punctuation characters " +
"such as the space."
Dim cipherText = Encode(plainText, message)
Console.WriteLine("Cipher text ->" & Environment.NewLine & "{0}", cipherText)
Dim decodedText = Decode(cipherText)
Console.WriteLine(Environment.NewLine & "Hidden text ->" & Environment.NewLine & "{0}", decodedText)
End Sub
End Module
|
Produce a functionally identical VB code for the snippet given in C#. | public int[,] Spiral(int n) {
int[,] result = new int[n, n];
int pos = 0;
int count = n;
int value = -n;
int sum = -1;
do {
value = -1 * value / n;
for (int i = 0; i < count; i++) {
sum += value;
result[sum / n, sum % n] = pos++;
}
value *= n;
count--;
for (int i = 0; i < count; i++) {
sum += value;
result[sum / n, sum % n] = pos++;
}
} while (count > 0);
return result;
}
public void PrintArray(int[,] array) {
int n = (array.GetLength(0) * array.GetLength(1) - 1).ToString().Length + 1;
for (int i = 0; i < array.GetLength(0); i++) {
for (int j = 0; j < array.GetLength(1); j++) {
Console.Write(array[i, j].ToString().PadLeft(n, ' '));
}
Console.WriteLine();
}
}
| Function build_spiral(n)
botcol = 0 : topcol = n - 1
botrow = 0 : toprow = n - 1
Dim matrix()
ReDim matrix(topcol,toprow)
dir = 0 : col = 0 : row = 0
For i = 0 To n*n-1
matrix(col,row) = i
Select Case dir
Case 0
If col < topcol Then
col = col + 1
Else
dir = 1 : row = row + 1 : botrow = botrow + 1
End If
Case 1
If row < toprow Then
row = row + 1
Else
dir = 2 : col = col - 1 : topcol = topcol - 1
End If
Case 2
If col > botcol Then
col = col - 1
Else
dir = 3 : row = row - 1 : toprow = toprow - 1
End If
Case 3
If row > botrow Then
row = row - 1
Else
dir = 0 : col = col + 1 : botcol = botcol + 1
End If
End Select
Next
For y = 0 To n-1
For x = 0 To n-1
WScript.StdOut.Write matrix(x,y) & vbTab
Next
WScript.StdOut.WriteLine
Next
End Function
build_spiral(CInt(WScript.Arguments(0)))
|
Ensure the translated VB code behaves exactly like the original C# snippet. | using System;
namespace FaulhabersTriangle {
internal class Frac {
private long num;
private long denom;
public static readonly Frac ZERO = new Frac(0, 1);
public static readonly Frac ONE = new Frac(1, 1);
public Frac(long n, long d) {
if (d == 0) {
throw new ArgumentException("d must not be zero");
}
long nn = n;
long dd = d;
if (nn == 0) {
dd = 1;
}
else if (dd < 0) {
nn = -nn;
dd = -dd;
}
long g = Math.Abs(Gcd(nn, dd));
if (g > 1) {
nn /= g;
dd /= g;
}
num = nn;
denom = dd;
}
private static long Gcd(long a, long b) {
if (b == 0) {
return a;
}
return Gcd(b, a % b);
}
public static Frac operator -(Frac self) {
return new Frac(-self.num, self.denom);
}
public static Frac operator +(Frac lhs, Frac rhs) {
return new Frac(lhs.num * rhs.denom + lhs.denom * rhs.num, rhs.denom * lhs.denom);
}
public static Frac operator -(Frac lhs, Frac rhs) {
return lhs + -rhs;
}
public static Frac operator *(Frac lhs, Frac rhs) {
return new Frac(lhs.num * rhs.num, lhs.denom * rhs.denom);
}
public static bool operator <(Frac lhs, Frac rhs) {
double x = (double)lhs.num / lhs.denom;
double y = (double)rhs.num / rhs.denom;
return x < y;
}
public static bool operator >(Frac lhs, Frac rhs) {
double x = (double)lhs.num / lhs.denom;
double y = (double)rhs.num / rhs.denom;
return x > y;
}
public static bool operator ==(Frac lhs, Frac rhs) {
return lhs.num == rhs.num && lhs.denom == rhs.denom;
}
public static bool operator !=(Frac lhs, Frac rhs) {
return lhs.num != rhs.num || lhs.denom != rhs.denom;
}
public override string ToString() {
if (denom == 1) {
return num.ToString();
}
return string.Format("{0}/{1}", num, denom);
}
public override bool Equals(object obj) {
var frac = obj as Frac;
return frac != null &&
num == frac.num &&
denom == frac.denom;
}
public override int GetHashCode() {
var hashCode = 1317992671;
hashCode = hashCode * -1521134295 + num.GetHashCode();
hashCode = hashCode * -1521134295 + denom.GetHashCode();
return hashCode;
}
}
class Program {
static Frac Bernoulli(int n) {
if (n < 0) {
throw new ArgumentException("n may not be negative or zero");
}
Frac[] a = new Frac[n + 1];
for (int m = 0; m <= n; m++) {
a[m] = new Frac(1, m + 1);
for (int j = m; j >= 1; j--) {
a[j - 1] = (a[j - 1] - a[j]) * new Frac(j, 1);
}
}
if (n != 1) return a[0];
return -a[0];
}
static int Binomial(int n, int k) {
if (n < 0 || k < 0 || n < k) {
throw new ArgumentException();
}
if (n == 0 || k == 0) return 1;
int num = 1;
for (int i = k + 1; i <= n; i++) {
num = num * i;
}
int denom = 1;
for (int i = 2; i <= n - k; i++) {
denom = denom * i;
}
return num / denom;
}
static Frac[] FaulhaberTriangle(int p) {
Frac[] coeffs = new Frac[p + 1];
for (int i = 0; i < p + 1; i++) {
coeffs[i] = Frac.ZERO;
}
Frac q = new Frac(1, p + 1);
int sign = -1;
for (int j = 0; j <= p; j++) {
sign *= -1;
coeffs[p - j] = q * new Frac(sign, 1) * new Frac(Binomial(p + 1, j), 1) * Bernoulli(j);
}
return coeffs;
}
static void Main(string[] args) {
for (int i = 0; i < 10; i++) {
Frac[] coeffs = FaulhaberTriangle(i);
foreach (Frac coeff in coeffs) {
Console.Write("{0,5} ", coeff);
}
Console.WriteLine();
}
}
}
}
| Module Module1
Class Frac
Private ReadOnly num As Long
Private ReadOnly denom As Long
Public Shared ReadOnly ZERO = New Frac(0, 1)
Public Shared ReadOnly ONE = New Frac(1, 1)
Public Sub New(n As Long, d As Long)
If d = 0 Then
Throw New ArgumentException("d must not be zero")
End If
Dim nn = n
Dim dd = d
If nn = 0 Then
dd = 1
ElseIf dd < 0 Then
nn = -nn
dd = -dd
End If
Dim g = Math.Abs(Gcd(nn, dd))
If g > 1 Then
nn /= g
dd /= g
End If
num = nn
denom = dd
End Sub
Private Shared Function Gcd(a As Long, b As Long) As Long
If b = 0 Then
Return a
Else
Return Gcd(b, a Mod b)
End If
End Function
Public Shared Operator -(self As Frac) As Frac
Return New Frac(-self.num, self.denom)
End Operator
Public Shared Operator +(lhs As Frac, rhs As Frac) As Frac
Return New Frac(lhs.num * rhs.denom + lhs.denom * rhs.num, rhs.denom * lhs.denom)
End Operator
Public Shared Operator -(lhs As Frac, rhs As Frac) As Frac
Return lhs + -rhs
End Operator
Public Shared Operator *(lhs As Frac, rhs As Frac) As Frac
Return New Frac(lhs.num * rhs.num, lhs.denom * rhs.denom)
End Operator
Public Shared Operator <(lhs As Frac, rhs As Frac) As Boolean
Dim x = lhs.num / lhs.denom
Dim y = rhs.num / rhs.denom
Return x < y
End Operator
Public Shared Operator >(lhs As Frac, rhs As Frac) As Boolean
Dim x = lhs.num / lhs.denom
Dim y = rhs.num / rhs.denom
Return x > y
End Operator
Public Shared Operator =(lhs As Frac, rhs As Frac) As Boolean
Return lhs.num = rhs.num AndAlso lhs.denom = rhs.denom
End Operator
Public Shared Operator <>(lhs As Frac, rhs As Frac) As Boolean
Return lhs.num <> rhs.num OrElse lhs.denom <> rhs.denom
End Operator
Public Overrides Function ToString() As String
If denom = 1 Then
Return num.ToString
Else
Return String.Format("{0}/{1}", num, denom)
End If
End Function
Public Overrides Function Equals(obj As Object) As Boolean
Dim frac = CType(obj, Frac)
Return Not IsNothing(frac) AndAlso num = frac.num AndAlso denom = frac.denom
End Function
End Class
Function Bernoulli(n As Integer) As Frac
If n < 0 Then
Throw New ArgumentException("n may not be negative or zero")
End If
Dim a(n + 1) As Frac
For m = 0 To n
a(m) = New Frac(1, m + 1)
For j = m To 1 Step -1
a(j - 1) = (a(j - 1) - a(j)) * New Frac(j, 1)
Next
Next
If n <> 1 Then
Return a(0)
Else
Return -a(0)
End If
End Function
Function Binomial(n As Integer, k As Integer) As Integer
If n < 0 OrElse k < 0 OrElse n < k Then
Throw New ArgumentException()
End If
If n = 0 OrElse k = 0 Then
Return 1
End If
Dim num = 1
For i = k + 1 To n
num *= i
Next
Dim denom = 1
For i = 2 To n - k
denom *= i
Next
Return num \ denom
End Function
Function FaulhaberTriangle(p As Integer) As Frac()
Dim coeffs(p + 1) As Frac
For i = 1 To p + 1
coeffs(i - 1) = Frac.ZERO
Next
Dim q As New Frac(1, p + 1)
Dim sign = -1
For j = 0 To p
sign *= -1
coeffs(p - j) = q * New Frac(sign, 1) * New Frac(Binomial(p + 1, j), 1) * Bernoulli(j)
Next
Return coeffs
End Function
Sub Main()
For i = 1 To 10
Dim coeffs = FaulhaberTriangle(i - 1)
For Each coeff In coeffs
Console.Write("{0,5} ", coeff)
Next
Console.WriteLine()
Next
End Sub
End Module
|
Change the programming language of this snippet from C# to VB without modifying what it does. | using System;
namespace RosettaCode {
class Program {
static void Main(string[] args) {
for (int i = 0; i < args.Length; i++)
Console.WriteLine(String.Format("Argument {0} is '{1}'", i, args[i]));
}
}
}
| Function Run(args() as String) As Integer
For each arg As String In args
Stdout.WriteLine(arg)
Next
End Function
|
Port the provided C# code into VB while preserving the original functionality. | using System;
namespace RosettaCode {
class Program {
static void Main(string[] args) {
for (int i = 0; i < args.Length; i++)
Console.WriteLine(String.Format("Argument {0} is '{1}'", i, args[i]));
}
}
}
| Function Run(args() as String) As Integer
For each arg As String In args
Stdout.WriteLine(arg)
Next
End Function
|
Convert this C# block to VB, preserving its control flow and logic. | using System;
namespace RosettaCode
{
class Program
{
static void Main(string[] args)
{
int[] a = { 1, 2, 3 };
int[] b = { 4, 5, 6 };
int[] c = new int[a.Length + b.Length];
a.CopyTo(c, 0);
b.CopyTo(c, a.Length);
foreach(int n in c)
{
Console.WriteLine(n.ToString());
}
}
}
}
| DEFINT A(1 to 4) = {1, 2, 3, 4}
DEFINT B(1 to 4) = {10, 20, 30, 40}
Redim A(1 to 8) as integer
MEMCPY(varptr(A(5)), varptr(B(1)), Sizeof(integer)*4)
|
Change the following C# code into VB without altering its purpose. | using System;
namespace C_Sharp_Console {
class example {
static void Main() {
string word;
int num;
Console.Write("Enter an integer: ");
num = Console.Read();
Console.Write("Enter a String: ");
word = Console.ReadLine();
}
}
}
| Public Sub text()
Debug.Print InputBox("Input a string")
Debug.Print InputBox("Input the integer 75000", "Input an integer", 75000, Context = "Long")
End Sub
|
Produce a language-to-language conversion: from C# to VB, same semantics. | using System;
using System.Collections.Generic;
namespace Tests_With_Framework_4
{
class Bag : IEnumerable<Bag.Item>
{
List<Item> items;
const int MaxWeightAllowed = 400;
public Bag()
{
items = new List<Item>();
}
void AddItem(Item i)
{
if ((TotalWeight + i.Weight) <= MaxWeightAllowed)
items.Add(i);
}
public void Calculate(List<Item> items)
{
foreach (Item i in Sorte(items))
{
AddItem(i);
}
}
List<Item> Sorte(List<Item> inputItems)
{
List<Item> choosenItems = new List<Item>();
for (int i = 0; i < inputItems.Count; i++)
{
int j = -1;
if (i == 0)
{
choosenItems.Add(inputItems[i]);
}
if (i > 0)
{
if (!RecursiveF(inputItems, choosenItems, i, choosenItems.Count - 1, false, ref j))
{
choosenItems.Add(inputItems[i]);
}
}
}
return choosenItems;
}
bool RecursiveF(List<Item> knapsackItems, List<Item> choosenItems, int i, int lastBound, bool dec, ref int indxToAdd)
{
if (!(lastBound < 0))
{
if ( knapsackItems[i].ResultWV < choosenItems[lastBound].ResultWV )
{
indxToAdd = lastBound;
}
return RecursiveF(knapsackItems, choosenItems, i, lastBound - 1, true, ref indxToAdd);
}
if (indxToAdd > -1)
{
choosenItems.Insert(indxToAdd, knapsackItems[i]);
return true;
}
return false;
}
#region IEnumerable<Item> Members
IEnumerator<Item> IEnumerable<Item>.GetEnumerator()
{
foreach (Item i in items)
yield return i;
}
#endregion
#region IEnumerable Members
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return items.GetEnumerator();
}
#endregion
public int TotalWeight
{
get
{
var sum = 0;
foreach (Item i in this)
{
sum += i.Weight;
}
return sum;
}
}
public class Item
{
public string Name { get; set; } public int Weight { get; set; } public int Value { get; set; } public int ResultWV { get { return Weight-Value; } }
public override string ToString()
{
return "Name : " + Name + " Wieght : " + Weight + " Value : " + Value + " ResultWV : " + ResultWV;
}
}
}
class Program
{
static void Main(string[] args)
{List<Bag.Item> knapsackItems = new List<Bag.Item>();
knapsackItems.Add(new Bag.Item() { Name = "Map", Weight = 9, Value = 150 });
knapsackItems.Add(new Bag.Item() { Name = "Water", Weight = 153, Value = 200 });
knapsackItems.Add(new Bag.Item() { Name = "Compass", Weight = 13, Value = 35 });
knapsackItems.Add(new Bag.Item() { Name = "Sandwitch", Weight = 50, Value = 160 });
knapsackItems.Add(new Bag.Item() { Name = "Glucose", Weight = 15, Value = 60 });
knapsackItems.Add(new Bag.Item() { Name = "Tin", Weight = 68, Value = 45 });
knapsackItems.Add(new Bag.Item() { Name = "Banana", Weight = 27, Value = 60 });
knapsackItems.Add(new Bag.Item() { Name = "Apple", Weight = 39, Value = 40 });
knapsackItems.Add(new Bag.Item() { Name = "Cheese", Weight = 23, Value = 30 });
knapsackItems.Add(new Bag.Item() { Name = "Beer", Weight = 52, Value = 10 });
knapsackItems.Add(new Bag.Item() { Name = "Suntan Cream", Weight = 11, Value = 70 });
knapsackItems.Add(new Bag.Item() { Name = "Camera", Weight = 32, Value = 30 });
knapsackItems.Add(new Bag.Item() { Name = "T-shirt", Weight = 24, Value = 15 });
knapsackItems.Add(new Bag.Item() { Name = "Trousers", Weight = 48, Value = 10 });
knapsackItems.Add(new Bag.Item() { Name = "Umbrella", Weight = 73, Value = 40 });
knapsackItems.Add(new Bag.Item() { Name = "WaterProof Trousers", Weight = 42, Value = 70 });
knapsackItems.Add(new Bag.Item() { Name = "Note-Case", Weight = 22, Value = 80 });
knapsackItems.Add(new Bag.Item() { Name = "Sunglasses", Weight = 7, Value = 20 });
knapsackItems.Add(new Bag.Item() { Name = "Towel", Weight = 18, Value = 12 });
knapsackItems.Add(new Bag.Item() { Name = "Socks", Weight = 4, Value = 50 });
knapsackItems.Add(new Bag.Item() { Name = "Book", Weight = 30, Value = 10 });
knapsackItems.Add(new Bag.Item() { Name = "waterproof overclothes ", Weight = 43, Value = 75 });
Bag b = new Bag();
b.Calculate(knapsackItems);
b.All(x => { Console.WriteLine(x); return true; });
Console.WriteLine(b.Sum(x => x.Weight));
Console.ReadKey();
}
}
}
|
Option Explicit
Const maxWeight = 400
Dim DataList As Variant
Dim xList(64, 3) As Variant
Dim nItems As Integer
Dim s As String, xss As String
Dim xwei As Integer, xval As Integer, nn As Integer
Sub Main()
Dim i As Integer, j As Integer
DataList = Array("map", 9, 150, "compass", 13, 35, "water", 153, 200, "sandwich", 50, 160, _
"glucose", 15, 60, "tin", 68, 45, "banana", 27, 60, "apple", 39, 40, _
"cheese", 23, 30, "beer", 52, 10, "suntan cream", 11, 70, "camera", 32, 30, _
"T-shirt", 24, 15, "trousers", 48, 10, "umbrella", 73, 40, "book", 30, 10, _
"waterproof trousers", 42, 70, "waterproof overclothes", 43, 75, _
"note-case", 22, 80, "sunglasses", 7, 20, "towel", 18, 12, "socks", 4, 50)
nItems = (UBound(DataList) + 1) / 3
j = 0
For i = 1 To nItems
xList(i, 1) = DataList(j)
xList(i, 2) = DataList(j + 1)
xList(i, 3) = DataList(j + 2)
j = j + 3
Next i
s = ""
For i = 1 To nItems
s = s & Chr(i)
Next
nn = 0
Call ChoiceBin(1, "")
For i = 1 To Len(xss)
j = Asc(Mid(xss, i, 1))
Debug.Print xList(j, 1)
Next i
Debug.Print "count=" & Len(xss), "weight=" & xwei, "value=" & xval
End Sub
Private Sub ChoiceBin(n As String, ss As String)
Dim r As String
Dim i As Integer, j As Integer, iwei As Integer, ival As Integer
Dim ipct As Integer
If n = Len(s) + 1 Then
iwei = 0: ival = 0
For i = 1 To Len(ss)
j = Asc(Mid(ss, i, 1))
iwei = iwei + xList(j, 2)
ival = ival + xList(j, 3)
Next
If iwei <= maxWeight And ival > xval Then
xss = ss: xwei = iwei: xval = ival
End If
Else
r = Mid(s, n, 1)
Call ChoiceBin(n + 1, ss & r)
Call ChoiceBin(n + 1, ss)
End If
End Sub
|
Generate a VB translation of this C# snippet without changing its computational steps. | using System;
public class Program
{
public static void Main()
{
int[] empty = new int[0];
int[] list1 = { 1, 2 };
int[] list2 = { 3, 4 };
int[] list3 = { 1776, 1789 };
int[] list4 = { 7, 12 };
int[] list5 = { 4, 14, 23 };
int[] list6 = { 0, 1 };
int[] list7 = { 1, 2, 3 };
int[] list8 = { 30 };
int[] list9 = { 500, 100 };
foreach (var sequenceList in new [] {
new [] { list1, list2 },
new [] { list2, list1 },
new [] { list1, empty },
new [] { empty, list1 },
new [] { list3, list4, list5, list6 },
new [] { list7, list8, list9 },
new [] { list7, empty, list9 }
}) {
var cart = sequenceList.CartesianProduct()
.Select(tuple => $"({string.Join(", ", tuple)})");
Console.WriteLine($"{{{string.Join(", ", cart)}}}");
}
}
}
public static class Extensions
{
public static IEnumerable<IEnumerable<T>> CartesianProduct<T>(this IEnumerable<IEnumerable<T>> sequences) {
IEnumerable<IEnumerable<T>> emptyProduct = new[] { Enumerable.Empty<T>() };
return sequences.Aggregate(
emptyProduct,
(accumulator, sequence) =>
from acc in accumulator
from item in sequence
select acc.Concat(new [] { item }));
}
}
| Imports System.Runtime.CompilerServices
Module Module1
<Extension()>
Function CartesianProduct(Of T)(sequences As IEnumerable(Of IEnumerable(Of T))) As IEnumerable(Of IEnumerable(Of T))
Dim emptyProduct As IEnumerable(Of IEnumerable(Of T)) = {Enumerable.Empty(Of T)}
Return sequences.Aggregate(emptyProduct, Function(accumulator, sequence) From acc In accumulator From item In sequence Select acc.Concat({item}))
End Function
Sub Main()
Dim empty(-1) As Integer
Dim list1 = {1, 2}
Dim list2 = {3, 4}
Dim list3 = {1776, 1789}
Dim list4 = {7, 12}
Dim list5 = {4, 14, 23}
Dim list6 = {0, 1}
Dim list7 = {1, 2, 3}
Dim list8 = {30}
Dim list9 = {500, 100}
For Each sequnceList As Integer()() In {
({list1, list2}),
({list2, list1}),
({list1, empty}),
({empty, list1}),
({list3, list4, list5, list6}),
({list7, list8, list9}),
({list7, empty, list9})
}
Dim cart = sequnceList.CartesianProduct().Select(Function(tuple) $"({String.Join(", ", tuple)})")
Console.WriteLine($"{{{String.Join(", ", cart)}}}")
Next
End Sub
End Module
|
Convert the following code from C# to VB, ensuring the logic remains intact. | using System;
public class Program
{
public static void Main()
{
int[] empty = new int[0];
int[] list1 = { 1, 2 };
int[] list2 = { 3, 4 };
int[] list3 = { 1776, 1789 };
int[] list4 = { 7, 12 };
int[] list5 = { 4, 14, 23 };
int[] list6 = { 0, 1 };
int[] list7 = { 1, 2, 3 };
int[] list8 = { 30 };
int[] list9 = { 500, 100 };
foreach (var sequenceList in new [] {
new [] { list1, list2 },
new [] { list2, list1 },
new [] { list1, empty },
new [] { empty, list1 },
new [] { list3, list4, list5, list6 },
new [] { list7, list8, list9 },
new [] { list7, empty, list9 }
}) {
var cart = sequenceList.CartesianProduct()
.Select(tuple => $"({string.Join(", ", tuple)})");
Console.WriteLine($"{{{string.Join(", ", cart)}}}");
}
}
}
public static class Extensions
{
public static IEnumerable<IEnumerable<T>> CartesianProduct<T>(this IEnumerable<IEnumerable<T>> sequences) {
IEnumerable<IEnumerable<T>> emptyProduct = new[] { Enumerable.Empty<T>() };
return sequences.Aggregate(
emptyProduct,
(accumulator, sequence) =>
from acc in accumulator
from item in sequence
select acc.Concat(new [] { item }));
}
}
| Imports System.Runtime.CompilerServices
Module Module1
<Extension()>
Function CartesianProduct(Of T)(sequences As IEnumerable(Of IEnumerable(Of T))) As IEnumerable(Of IEnumerable(Of T))
Dim emptyProduct As IEnumerable(Of IEnumerable(Of T)) = {Enumerable.Empty(Of T)}
Return sequences.Aggregate(emptyProduct, Function(accumulator, sequence) From acc In accumulator From item In sequence Select acc.Concat({item}))
End Function
Sub Main()
Dim empty(-1) As Integer
Dim list1 = {1, 2}
Dim list2 = {3, 4}
Dim list3 = {1776, 1789}
Dim list4 = {7, 12}
Dim list5 = {4, 14, 23}
Dim list6 = {0, 1}
Dim list7 = {1, 2, 3}
Dim list8 = {30}
Dim list9 = {500, 100}
For Each sequnceList As Integer()() In {
({list1, list2}),
({list2, list1}),
({list1, empty}),
({empty, list1}),
({list3, list4, list5, list6}),
({list7, list8, list9}),
({list7, empty, list9})
}
Dim cart = sequnceList.CartesianProduct().Select(Function(tuple) $"({String.Join(", ", tuple)})")
Console.WriteLine($"{{{String.Join(", ", cart)}}}")
Next
End Sub
End Module
|
Maintain the same structure and functionality when rewriting this code in VB. | namespace RosettaCode.ProperDivisors
{
using System;
using System.Collections.Generic;
using System.Linq;
internal static class Program
{
private static IEnumerable<int> ProperDivisors(int number)
{
return
Enumerable.Range(1, number / 2)
.Where(divisor => number % divisor == 0);
}
private static void Main()
{
foreach (var number in Enumerable.Range(1, 10))
{
Console.WriteLine("{0}: {{{1}}}", number,
string.Join(", ", ProperDivisors(number)));
}
var record = Enumerable.Range(1, 20000).Select(number => new
{
Number = number,
Count = ProperDivisors(number).Count()
}).OrderByDescending(currentRecord => currentRecord.Count).First();
Console.WriteLine("{0}: {1}", record.Number, record.Count);
}
}
}
| dim _proper_divisors(100)
sub proper_divisors(n)
dim i
dim _proper_divisors_count = 0
if n <> 1 then
for i = 1 to (n \ 2)
if n %% i = 0 then
_proper_divisors_count = _proper_divisors_count + 1
_proper_divisors(_proper_divisors_count) = i
end if
next
end if
return _proper_divisors_count
end sub
sub show_proper_divisors(n, tabbed)
dim cnt = proper_divisors(n)
print str$(n) + ":"; tab(4);"(" + str$(cnt) + " items) ";
dim j
for j = 1 to cnt
if tabbed then
print str$(_proper_divisors(j)),
else
print str$(_proper_divisors(j));
end if
if (j < cnt) then print ",";
next
print
end sub
dim i
for i = 1 to 10
show_proper_divisors(i, false)
next
dim c
dim maxindex = 0
dim maxlength = 0
for t = 1 to 20000
c = proper_divisors(t)
if c > maxlength then
maxindex = t
maxlength = c
end if
next
print "A maximum at ";
show_proper_divisors(maxindex, false)
|
Please provide an equivalent version of this C# code in VB. | using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
class Program
{
static string CreateXML(Dictionary<string, string> characterRemarks)
{
var remarks = characterRemarks.Select(r => new XElement("Character", r.Value, new XAttribute("Name", r.Key)));
var xml = new XElement("CharacterRemarks", remarks);
return xml.ToString();
}
static void Main(string[] args)
{
var characterRemarks = new Dictionary<string, string>
{
{ "April", "Bubbly: I'm > Tam and <= Emily" },
{ "Tam O'Shanter", "Burns: \"When chapman billies leave the street ...\"" },
{ "Emily", "Short & shrift" }
};
string xml = CreateXML(characterRemarks);
Console.WriteLine(xml);
}
}
| Module XMLOutput
Sub Main()
Dim charRemarks As New Dictionary(Of String, String)
charRemarks.Add("April", "Bubbly: I
charRemarks.Add("Tam O
charRemarks.Add("Emily", "Short & shrift")
Dim xml = <CharacterRemarks>
<%= From cr In charRemarks Select <Character name=<%= cr.Key %>><%= cr.Value %></Character> %>
</CharacterRemarks>
Console.WriteLine(xml)
End Sub
End Module
|
Can you help me rewrite this code in VB instead of C#, keeping it the same logically? | using System;
using System.Text.RegularExpressions;
class Program {
static void Main(string[] args) {
string str = "I am a string";
if (new Regex("string$").IsMatch(str)) {
Console.WriteLine("Ends with string.");
}
str = new Regex(" a ").Replace(str, " another ");
Console.WriteLine(str);
}
}
| text = "I need more coffee!!!"
Set regex = New RegExp
regex.Global = True
regex.Pattern = "\s"
If regex.Test(text) Then
WScript.StdOut.Write regex.Replace(text,vbCrLf)
Else
WScript.StdOut.Write "No matching pattern"
End If
|
Keep all operations the same but rewrite the snippet in VB. | static class Program
{
static void Main()
{
System.Collections.Hashtable h = new System.Collections.Hashtable();
string[] keys = { "foo", "bar", "val" };
string[] values = { "little", "miss", "muffet" };
System.Diagnostics.Trace.Assert(keys.Length == values.Length, "Arrays are not same length.");
for (int i = 0; i < keys.Length; i++)
{
h.Add(keys[i], values[i]);
}
}
}
| Set dict = CreateObject("Scripting.Dictionary")
os = Array("Windows", "Linux", "MacOS")
owner = Array("Microsoft", "Linus Torvalds", "Apple")
For n = 0 To 2
dict.Add os(n), owner(n)
Next
MsgBox dict.Item("Linux")
MsgBox dict.Item("MacOS")
MsgBox dict.Item("Windows")
|
Keep all operations the same but rewrite the snippet in VB. | using System;
using System.Drawing;
using System.Windows.Forms;
class CSharpPendulum
{
Form _form;
Timer _timer;
double _angle = Math.PI / 2,
_angleAccel,
_angleVelocity = 0,
_dt = 0.1;
int _length = 50;
[STAThread]
static void Main()
{
var p = new CSharpPendulum();
}
public CSharpPendulum()
{
_form = new Form() { Text = "Pendulum", Width = 200, Height = 200 };
_timer = new Timer() { Interval = 30 };
_timer.Tick += delegate(object sender, EventArgs e)
{
int anchorX = (_form.Width / 2) - 12,
anchorY = _form.Height / 4,
ballX = anchorX + (int)(Math.Sin(_angle) * _length),
ballY = anchorY + (int)(Math.Cos(_angle) * _length);
_angleAccel = -9.81 / _length * Math.Sin(_angle);
_angleVelocity += _angleAccel * _dt;
_angle += _angleVelocity * _dt;
Bitmap dblBuffer = new Bitmap(_form.Width, _form.Height);
Graphics g = Graphics.FromImage(dblBuffer);
Graphics f = Graphics.FromHwnd(_form.Handle);
g.DrawLine(Pens.Black, new Point(anchorX, anchorY), new Point(ballX, ballY));
g.FillEllipse(Brushes.Black, anchorX - 3, anchorY - 4, 7, 7);
g.FillEllipse(Brushes.DarkGoldenrod, ballX - 7, ballY - 7, 14, 14);
f.Clear(Color.White);
f.DrawImage(dblBuffer, new Point(0, 0));
};
_timer.Start();
Application.Run(_form);
}
}
| option explicit
const dt = 0.15
const length=23
dim ans0:ans0=chr(27)&"["
dim Veloc,Accel,angle,olr,olc,r,c
const r0=1
const c0=40
cls
angle=0.7
while 1
wscript.sleep(50)
Accel = -.9 * sin(Angle)
Veloc = Veloc + Accel * dt
Angle = Angle + Veloc * dt
r = r0 + int(cos(Angle) * Length)
c = c0+ int(2*sin(Angle) * Length)
cls
draw_line r,c,r0,c0
toxy r,c,"O"
olr=r :olc=c
wend
sub cls() wscript.StdOut.Write ans0 &"2J"&ans0 &"?25l":end sub
sub toxy(r,c,s) wscript.StdOut.Write ans0 & r & ";" & c & "f" & s :end sub
Sub draw_line(r1,c1, r2,c2)
Dim x,y,xf,yf,dx,dy,sx,sy,err,err2
x =r1 : y =c1
xf=r2 : yf=c2
dx=Abs(xf-x) : dy=Abs(yf-y)
If x<xf Then sx=+1: Else sx=-1
If y<yf Then sy=+1: Else sy=-1
err=dx-dy
Do
toxy x,y,"."
If x=xf And y=yf Then Exit Do
err2=err+err
If err2>-dy Then err=err-dy: x=x+sx
If err2< dx Then err=err+dx: y=y+sy
Loop
End Sub
|
Convert the following code from C# to VB, ensuring the logic remains intact. | using System;
using System.Linq;
using System.Collections.Generic;
public struct Card
{
public Card(string rank, string suit) : this()
{
Rank = rank;
Suit = suit;
}
public string Rank { get; }
public string Suit { get; }
public override string ToString() => $"{Rank} of {Suit}";
}
public class Deck : IEnumerable<Card>
{
static readonly string[] ranks = { "Two", "Three", "Four", "Five", "Six",
"Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King", "Ace" };
static readonly string[] suits = { "Clubs", "Diamonds", "Hearts", "Spades" };
readonly List<Card> cards;
public Deck() {
cards = (from suit in suits
from rank in ranks
select new Card(rank, suit)).ToList();
}
public int Count => cards.Count;
public void Shuffle() {
var random = new Random();
for (int i = 0; i < cards.Count; i++) {
int r = random.Next(i, cards.Count);
var temp = cards[i];
cards[i] = cards[r];
cards[r] = temp;
}
}
public Card Deal() {
int last = cards.Count - 1;
Card card = cards[last];
cards.RemoveAt(last);
return card;
}
public IEnumerator<Card> GetEnumerator() {
for (int i = cards.Count - 1; i >= 0; i--)
yield return cards[i];
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator();
}
| class playingcard
dim suit
dim pips
end class
class carddeck
private suitnames
private pipnames
private cardno
private deck(52)
private nTop
sub class_initialize
dim suit
dim pips
suitnames = split("H,D,C,S",",")
pipnames = split("A,2,3,4,5,6,7,8,9,10,J,Q,K",",")
cardno = 0
for suit = 1 to 4
for pips = 1 to 13
set deck(cardno) = new playingcard
deck(cardno).suit = suitnames(suit-1)
deck(cardno).pips = pipnames(pips-1)
cardno = cardno + 1
next
next
nTop = 0
end sub
public sub showdeck
dim a
redim a(51-nTop)
for i = nTop to 51
a(i) = deck(i).pips & deck(i).suit
next
wscript.echo join( a, ", ")
end sub
public sub shuffle
dim r
randomize timer
for i = nTop to 51
r = int( rnd * ( 52 - nTop ) )
if r <> i then
objswap deck(i),deck(r)
end if
next
end sub
public function deal()
set deal = deck( nTop )
nTop = nTop + 1
end function
public property get cardsRemaining
cardsRemaining = 52 - nTop
end property
private sub objswap( a, b )
dim tmp
set tmp = a
set a = b
set b = tmp
end sub
end class
|
Write a version of this C# function in VB with identical behavior. | using System;
using System.Collections.Generic;
using System.Linq;
class Program
{
static List<string> NextCarpet(List<string> carpet)
{
return carpet.Select(x => x + x + x)
.Concat(carpet.Select(x => x + x.Replace('#', ' ') + x))
.Concat(carpet.Select(x => x + x + x)).ToList();
}
static List<string> SierpinskiCarpet(int n)
{
return Enumerable.Range(1, n).Aggregate(new List<string> { "#" }, (carpet, _) => NextCarpet(carpet));
}
static void Main(string[] args)
{
foreach (string s in SierpinskiCarpet(3))
Console.WriteLine(s);
}
}
| Const Order = 4
Function InCarpet(ByVal x As Integer, ByVal y As Integer)
Do While x <> 0 And y <> 0
If x Mod 3 = 1 And y Mod 3 = 1 Then
InCarpet = " "
Exit Function
End If
x = x \ 3
y = y \ 3
Loop
InCarpet = "#"
End Function
Public Sub sierpinski_carpet()
Dim i As Integer, j As Integer
For i = 0 To 3 ^ Order - 1
For j = 0 To 3 ^ Order - 1
Debug.Print InCarpet(i, j);
Next j
Debug.Print
Next i
End Sub
|
Convert the following code from C# to VB, ensuring the logic remains intact. | using System;
using System.Collections.Generic;
namespace RosettaCode.BogoSort
{
public static class BogoSorter
{
public static void Sort<T>(List<T> list) where T:IComparable
{
while (!list.isSorted())
{
list.Shuffle();
}
}
private static bool isSorted<T>(this IList<T> list) where T:IComparable
{
if(list.Count<=1)
return true;
for (int i = 1 ; i < list.Count; i++)
if(list[i].CompareTo(list[i-1])<0) return false;
return true;
}
private static void Shuffle<T>(this IList<T> list)
{
Random rand = new Random();
for (int i = 0; i < list.Count; i++)
{
int swapIndex = rand.Next(list.Count);
T temp = list[swapIndex];
list[swapIndex] = list[i];
list[i] = temp;
}
}
}
class TestProgram
{
static void Main()
{
List<int> testList = new List<int> { 3, 4, 1, 8, 7, 4, -2 };
BogoSorter.Sort(testList);
foreach (int i in testList) Console.Write(i + " ");
}
}
}
| Private Function Knuth(a As Variant) As Variant
Dim t As Variant, i As Integer
If Not IsMissing(a) Then
For i = UBound(a) To LBound(a) + 1 Step -1
j = Int((UBound(a) - LBound(a) + 1) * Rnd + LBound(a))
t = a(i)
a(i) = a(j)
a(j) = t
Next i
End If
Knuth = a
End Function
Private Function inOrder(s As Variant)
i = 2
Do While i <= UBound(s)
If s(i) < s(i - 1) Then
inOrder = False
Exit Function
End If
i = i + 1
Loop
inOrder = True
End Function
Private Function bogosort(ByVal s As Variant) As Variant
Do While Not inOrder(s)
Debug.Print Join(s, ", ")
s = Knuth(s)
Loop
bogosort = s
End Function
Public Sub main()
Debug.Print Join(bogosort(Knuth([{1,2,3,4,5,6}])), ", ")
End Sub
|
Transform the following C# implementation into VB, maintaining the same output and logic. | using System;
namespace prog
{
class MainClass
{
const float T0 = 100f;
const float TR = 20f;
const float k = 0.07f;
readonly static float[] delta_t = {2.0f,5.0f,10.0f};
const int n = 100;
public delegate float func(float t);
static float NewtonCooling(float t)
{
return -k * (t-TR);
}
public static void Main (string[] args)
{
func f = new func(NewtonCooling);
for(int i=0; i<delta_t.Length; i++)
{
Console.WriteLine("delta_t = " + delta_t[i]);
Euler(f,T0,n,delta_t[i]);
}
}
public static void Euler(func f, float y, int n, float h)
{
for(float x=0; x<=n; x+=h)
{
Console.WriteLine("\t" + x + "\t" + y);
y += h * f(y);
}
}
}
}
| Private Sub ivp_euler(f As String, y As Double, step As Integer, end_t As Integer)
Dim t As Integer
Debug.Print " Step "; step; ": ",
Do While t <= end_t
If t Mod 10 = 0 Then Debug.Print Format(y, "0.000"),
y = y + step * Application.Run(f, y)
t = t + step
Loop
Debug.Print
End Sub
Sub analytic()
Debug.Print " Time: ",
For t = 0 To 100 Step 10
Debug.Print " "; t,
Next t
Debug.Print
Debug.Print "Analytic: ",
For t = 0 To 100 Step 10
Debug.Print Format(20 + 80 * Exp(-0.07 * t), "0.000"),
Next t
Debug.Print
End Sub
Private Function cooling(temp As Double) As Double
cooling = -0.07 * (temp - 20)
End Function
Public Sub euler_method()
Dim r_cooling As String
r_cooling = "cooling"
analytic
ivp_euler r_cooling, 100, 2, 100
ivp_euler r_cooling, 100, 5, 100
ivp_euler r_cooling, 100, 10, 100
End Sub
|
Write the same code in VB as shown below in C#. | using System;
using System.Diagnostics;
namespace sons
{
class Program
{
static void Main(string[] args)
{
for (int i = 1; i < 23; i++)
Console.WriteLine(nonsqr(i));
for (int i = 1; i < 1000000; i++)
{
double j = Math.Sqrt(nonsqr(i));
Debug.Assert(j != Math.Floor(j),"Square");
}
}
static int nonsqr(int i)
{
return (int)(i + Math.Floor(0.5 + Math.Sqrt(i)));
}
}
}
| Sub Main()
Dim i&, c&, j#, s$
Const N& = 1000000
s = "values for n in the range 1 to 22 : "
For i = 1 To 22
s = s & ns(i) & ", "
Next
For i = 1 To N
j = Sqr(ns(i))
If j = CInt(j) Then c = c + 1
Next
Debug.Print s
Debug.Print c & " squares less than " & N
End Sub
Private Function ns(l As Long) As Long
ns = l + Int(1 / 2 + Sqr(l))
End Function
|
Generate a VB translation of this C# snippet without changing its computational steps. | using System;
namespace SubString
{
class Program
{
static void Main(string[] args)
{
string s = "0123456789";
const int n = 3;
const int m = 2;
const char c = '3';
const string z = "345";
Console.WriteLine(s.Substring(n, m));
Console.WriteLine(s.Substring(n, s.Length - n));
Console.WriteLine(s.Substring(0, s.Length - 1));
Console.WriteLine(s.Substring(s.IndexOf(c), m));
Console.WriteLine(s.Substring(s.IndexOf(z), m));
}
}
}
| Public Sub substring()
sentence = "the last thing the man said was the"
n = 10: m = 5
Debug.Print Mid(sentence, n, 5)
Debug.Print Right(sentence, Len(sentence) - n + 1)
Debug.Print Left(sentence, Len(sentence) - 1)
k = InStr(1, sentence, "m")
Debug.Print Mid(sentence, k, 5)
k = InStr(1, sentence, "aid")
Debug.Print Mid(sentence, k, 5)
End Sub
|
Keep all operations the same but rewrite the snippet in VB. | using System;
class Program
{
public static bool JortSort<T>(T[] array) where T : IComparable, IEquatable<T>
{
T[] originalArray = (T[]) array.Clone();
Array.Sort(array);
for (var i = 0; i < originalArray.Length; i++)
{
if (!Equals(originalArray[i], array[i]))
{
return false;
}
}
return true;
}
}
| Function JortSort(s)
JortSort = True
arrPreSort = Split(s,",")
Set arrSorted = CreateObject("System.Collections.ArrayList")
For i = 0 To UBound(arrPreSort)
arrSorted.Add(arrPreSort(i))
Next
arrSorted.Sort()
For j = 0 To UBound(arrPreSort)
If arrPreSort(j) <> arrSorted(j) Then
JortSort = False
Exit For
End If
Next
End Function
WScript.StdOut.Write JortSort("1,2,3,4,5")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("1,2,3,5,4")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("a,b,c")
WScript.StdOut.WriteLine
WScript.StdOut.Write JortSort("a,c,b")
|
Transform the following C# implementation into VB, maintaining the same output and logic. | using System;
class Program
{
static void Main()
{
foreach (var year in new[] { 1900, 1994, 1996, DateTime.Now.Year })
{
Console.WriteLine("{0} is {1}a leap year.",
year,
DateTime.IsLeapYear(year) ? string.Empty : "not ");
}
}
}
| Public Function Leap_year(year As Integer) As Boolean
Leap_year = (Month(DateSerial(year, 2, 29)) = 2)
End Function
|
Convert this C# block to VB, preserving its control flow and logic. | using static System.Console;
using static System.Linq.Enumerable;
public class Program
{
public static void Main() {
foreach (int n in new [] { 0, 5, 13, 21, -22 }) WriteLine($"{n}: {string.Join(", ", LexOrder(n))}");
}
public static IEnumerable<int> LexOrder(int n) => (n < 1 ? Range(n, 2 - n) : Range(1, n)).OrderBy(i => i.ToString());
}
| Public Function sortlexicographically(N As Integer)
Dim arrList As Object
Set arrList = CreateObject("System.Collections.ArrayList")
For i = 1 To N
arrList.Add CStr(i)
Next i
arrList.Sort
Dim item As Variant
For Each item In arrList
Debug.Print item & ", ";
Next
End Function
Public Sub main()
Call sortlexicographically(13)
End Sub
|
Change the programming language of this snippet from C# to VB without modifying what it does. | using System;
class NumberNamer {
static readonly string[] incrementsOfOne =
{ "zero", "one", "two", "three", "four",
"five", "six", "seven", "eight", "nine",
"ten", "eleven", "twelve", "thirteen", "fourteen",
"fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
static readonly string[] incrementsOfTen =
{ "", "", "twenty", "thirty", "fourty",
"fifty", "sixty", "seventy", "eighty", "ninety" };
const string millionName = "million",
thousandName = "thousand",
hundredName = "hundred",
andName = "and";
public static string GetName( int i ) {
string output = "";
if( i >= 1000000 ) {
output += ParseTriplet( i / 1000000 ) + " " + millionName;
i %= 1000000;
if( i == 0 ) return output;
}
if( i >= 1000 ) {
if( output.Length > 0 ) {
output += ", ";
}
output += ParseTriplet( i / 1000 ) + " " + thousandName;
i %= 1000;
if( i == 0 ) return output;
}
if( output.Length > 0 ) {
output += ", ";
}
output += ParseTriplet( i );
return output;
}
static string ParseTriplet( int i ) {
string output = "";
if( i >= 100 ) {
output += incrementsOfOne[i / 100] + " " + hundredName;
i %= 100;
if( i == 0 ) return output;
}
if( output.Length > 0 ) {
output += " " + andName + " ";
}
if( i >= 20 ) {
output += incrementsOfTen[i / 10];
i %= 10;
if( i == 0 ) return output;
}
if( output.Length > 0 ) {
output += " ";
}
output += incrementsOfOne[i];
return output;
}
}
class Program {
static void Main( string[] args ) {
Console.WriteLine( NumberNamer.GetName( 1 ) );
Console.WriteLine( NumberNamer.GetName( 234 ) );
Console.WriteLine( NumberNamer.GetName( 31337 ) );
Console.WriteLine( NumberNamer.GetName( 987654321 ) );
}
}
| Public twenties As Variant
Public decades As Variant
Public orders As Variant
Private Sub init()
twenties = [{"zero","one","two","three","four","five","six","seven","eight","nine","ten", "eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"}]
decades = [{"twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"}]
orders = [{1E15,"quadrillion"; 1E12,"trillion"; 1E9,"billion"; 1E6,"million"; 1E3,"thousand"}]
End Sub
Private Function Twenty(N As Variant)
Twenty = twenties(N Mod 20 + 1)
End Function
Private Function Decade(N As Variant)
Decade = decades(N Mod 10 - 1)
End Function
Private Function Hundred(N As Variant)
If N < 20 Then
Hundred = Twenty(N)
Exit Function
Else
If N Mod 10 = 0 Then
Hundred = Decade((N \ 10) Mod 10)
Exit Function
End If
End If
Hundred = Decade(N \ 10) & "-" & Twenty(N Mod 10)
End Function
Private Function Thousand(N As Variant, withand As String)
If N < 100 Then
Thousand = withand & Hundred(N)
Exit Function
Else
If N Mod 100 = 0 Then
Thousand = withand & Twenty(WorksheetFunction.Floor_Precise(N / 100)) & " hundred"
Exit Function
End If
End If
Thousand = Twenty(N \ 100) & " hundred and " & Hundred(N Mod 100)
End Function
Private Function Triplet(N As Variant)
Dim Order, High As Variant, Low As Variant
Dim Name As String, res As String
For i = 1 To UBound(orders)
Order = orders(i, 1)
Name = orders(i, 2)
High = WorksheetFunction.Floor_Precise(N / Order)
Low = N - High * Order
If High <> 0 Then
res = res & Thousand(High, "") & " " & Name
End If
N = Low
If Low = 0 Then Exit For
If Len(res) And High <> 0 Then
res = res & ", "
End If
Next i
If N <> 0 Or res = "" Then
res = res & Thousand(WorksheetFunction.Floor_Precise(N), IIf(res = "", "", "and "))
N = N - Int(N)
If N > 0.000001 Then
res = res & " point"
For i = 1 To 10
n_ = WorksheetFunction.Floor_Precise(N * 10.0000001)
res = res & " " & twenties(n_ + 1)
N = N * 10 - n_
If Abs(N) < 0.000001 Then Exit For
Next i
End If
End If
Triplet = res
End Function
Private Function spell(N As Variant)
Dim res As String
If N < 0 Then
res = "minus "
N = -N
End If
res = res & Triplet(N)
spell = res
End Function
Private Function smartp(N As Variant)
Dim res As String
If N = WorksheetFunction.Floor_Precise(N) Then
smartp = CStr(N)
Exit Function
End If
res = CStr(N)
If InStr(1, res, ".") Then
res = Left(res, InStr(1, res, "."))
End If
smartp = res
End Function
Sub Main()
Dim si As Variant
init
Samples1 = [{99, 300, 310, 417, 1501, 12609, 200000000000100, 999999999999999, -123456787654321,102003000400005,1020030004,102003,102,1,0,-1,-99, -1501,1234,12.34}]
Samples2 = [{10000001.2,1E-3,-2.7182818, 201021002001,-20102100200,2010210020,-201021002,20102100,-2010210, 201021,-20102,2010,-201,20,-2}]
For i = 1 To UBound(Samples1)
si = Samples1(i)
Debug.Print Format(smartp(si), "@@@@@@@@@@@@@@@@"); " "; spell(si)
Next i
For i = 1 To UBound(Samples2)
si = Samples2(i)
Debug.Print Format(smartp(si), "@@@@@@@@@@@@@@@@"); " "; spell(si)
Next i
End Sub
|
Change the programming language of this snippet from C# to VB without modifying what it does. | using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Program
{
static SortedDictionary<TItem, int> GetFrequencies<TItem>(IEnumerable<TItem> items)
{
var dictionary = new SortedDictionary<TItem, int>();
foreach (var item in items)
{
if (dictionary.ContainsKey(item))
{
dictionary[item]++;
}
else
{
dictionary[item] = 1;
}
}
return dictionary;
}
static void Main(string[] arguments)
{
var file = arguments.FirstOrDefault();
if (File.Exists(file))
{
var text = File.ReadAllText(file);
foreach (var entry in GetFrequencies(text))
{
Console.WriteLine("{0}: {1}", entry.Key, entry.Value);
}
}
}
}
|
TYPE regChar
Character AS STRING * 3
Count AS LONG
END TYPE
DIM iChar AS INTEGER
DIM iCL AS INTEGER
DIM iCountChars AS INTEGER
DIM iFile AS INTEGER
DIM i AS INTEGER
DIM lMUC AS LONG
DIM iMUI AS INTEGER
DIM lLUC AS LONG
DIM iLUI AS INTEGER
DIM iMaxIdx AS INTEGER
DIM iP AS INTEGER
DIM iPause AS INTEGER
DIM iPMI AS INTEGER
DIM iPrint AS INTEGER
DIM lHowMany AS LONG
DIM lTotChars AS LONG
DIM sTime AS SINGLE
DIM strFile AS STRING
DIM strTxt AS STRING
DIM strDate AS STRING
DIM strTime AS STRING
DIM strKey AS STRING
CONST LngReg = 256
CONST Letters = 1
CONST FALSE = 0
CONST TRUE = NOT FALSE
strDate = DATE$
strTime = TIME$
iFile = FREEFILE
DO
CLS
PRINT "This program counts letters or characters in a text file."
PRINT
INPUT "File to open: ", strFile
OPEN strFile FOR BINARY AS #iFile
IF LOF(iFile) > 0 THEN
PRINT "Count: 1) Letters 2) Characters (1 or 2)";
DO
strKey = INKEY$
LOOP UNTIL strKey = "1" OR strKey = "2"
PRINT ". Option selected: "; strKey
iCL = VAL(strKey)
sTime = TIMER
iP = POS(0)
lHowMany = LOF(iFile)
strTxt = SPACE$(LngReg)
IF iCL = Letters THEN
iMaxIdx = 26
ELSE
iMaxIdx = 255
END IF
IF iMaxIdx <> iPMI THEN
iPMI = iMaxIdx
REDIM rChar(0 TO iMaxIdx) AS regChar
FOR i = 0 TO iMaxIdx
IF iCL = Letters THEN
strTxt = CHR$(i + 65)
IF i = 26 THEN strTxt = CHR$(165)
ELSE
SELECT CASE i
CASE 0: strTxt = "nul"
CASE 7: strTxt = "bel"
CASE 9: strTxt = "tab"
CASE 10: strTxt = "lf"
CASE 11: strTxt = "vt"
CASE 12: strTxt = "ff"
CASE 13: strTxt = "cr"
CASE 28: strTxt = "fs"
CASE 29: strTxt = "gs"
CASE 30: strTxt = "rs"
CASE 31: strTxt = "us"
CASE 32: strTxt = "sp"
CASE ELSE: strTxt = CHR$(i)
END SELECT
END IF
rChar(i).Character = strTxt
NEXT i
ELSE
FOR i = 0 TO iMaxIdx
rChar(i).Count = 0
NEXT i
END IF
PRINT "Looking for ";
IF iCL = Letters THEN PRINT "letters."; ELSE PRINT "characters.";
PRINT " File is"; STR$(lHowMany); " in size. Working"; : COLOR 23: PRINT "..."; : COLOR (7)
DO WHILE LOC(iFile) < LOF(iFile)
IF LOC(iFile) + LngReg > LOF(iFile) THEN
strTxt = SPACE$(LOF(iFile) - LOC(iFile))
END IF
GET #iFile, , strTxt
FOR i = 1 TO LEN(strTxt)
IF iCL = Letters THEN
iChar = ASC(UCASE$(MID$(strTxt, i, 1)))
SELECT CASE iChar
CASE 164: iChar = 165
CASE 160: iChar = 65
CASE 130, 144: iChar = 69
CASE 161: iChar = 73
CASE 162: iChar = 79
CASE 163, 129: iChar = 85
END SELECT
iChar = iChar - 65
IF iChar >= 0 AND iChar <= 25 THEN
rChar(iChar).Count = rChar(iChar).Count + 1
ELSEIF iChar = 100 THEN
rChar(iMaxIdx).Count = rChar(iMaxIdx).Count + 1
END IF
ELSE
iChar = ASC(MID$(strTxt, i, 1))
rChar(iChar).Count = rChar(iChar).Count + 1
END IF
NEXT i
LOOP
CLOSE #iFile
lMUC = 0
iMUI = 0
lLUC = 2147483647
iLUI = 0
iPrint = FALSE
lTotChars = 0
iCountChars = 0
iPause = FALSE
CLS
IF iCL = Letters THEN PRINT "Letters found: "; ELSE PRINT "Characters found: ";
FOR i = 0 TO iMaxIdx
IF lMUC < rChar(i).Count THEN
lMUC = rChar(i).Count
iMUI = i
END IF
IF rChar(i).Count > 0 THEN
strTxt = ""
IF iPrint THEN strTxt = ", " ELSE iPrint = TRUE
strTxt = strTxt + LTRIM$(RTRIM$(rChar(i).Character))
strTxt = strTxt + "=" + LTRIM$(STR$(rChar(i).Count))
iP = POS(0)
IF iP + LEN(strTxt) + 1 >= 80 AND iPrint THEN
PRINT ","
IF CSRLIN >= 23 AND NOT iPause THEN
iPause = TRUE
PRINT "Press a key to continue..."
DO
strKey = INKEY$
LOOP UNTIL strKey <> ""
END IF
strTxt = MID$(strTxt, 3)
END IF
PRINT strTxt;
lTotChars = lTotChars + rChar(i).Count
iCountChars = iCountChars + 1
IF lLUC > rChar(i).Count THEN
lLUC = rChar(i).Count
iLUI = i
END IF
END IF
NEXT i
PRINT "."
PRINT
PRINT "File analyzed....................: "; strFile
PRINT "Looked for.......................: "; : IF iCL = Letters THEN PRINT "Letters" ELSE PRINT "Characters"
PRINT "Total characters in file.........:"; lHowMany
PRINT "Total characters counted.........:"; lTotChars
IF iCL = Letters THEN PRINT "Characters discarded on count....:"; lHowMany - lTotChars
PRINT "Distinct characters found in file:"; iCountChars; "of"; iMaxIdx + 1
PRINT "Most used character was..........: ";
iPrint = FALSE
FOR i = 0 TO iMaxIdx
IF rChar(i).Count = lMUC THEN
IF iPrint THEN PRINT ", "; ELSE iPrint = TRUE
PRINT RTRIM$(LTRIM$(rChar(i).Character));
END IF
NEXT i
PRINT " ("; LTRIM$(STR$(rChar(iMUI).Count)); " times)"
PRINT "Least used character was.........: ";
iPrint = FALSE
FOR i = 0 TO iMaxIdx
IF rChar(i).Count = lLUC THEN
IF iPrint THEN PRINT ", "; ELSE iPrint = TRUE
PRINT RTRIM$(LTRIM$(rChar(i).Character));
END IF
NEXT i
PRINT " ("; LTRIM$(STR$(rChar(iLUI).Count)); " times)"
PRINT "Time spent in the process........:"; TIMER - sTime; "seconds"
ELSE
CLOSE #iFile
KILL strFile
PRINT
PRINT "File does not exist."
END IF
PRINT
PRINT "Again? (Y/n)"
DO
strTxt = UCASE$(INKEY$)
LOOP UNTIL strTxt = "N" OR strTxt = "Y" OR strTxt = CHR$(13) OR strTxt = CHR$(27)
LOOP UNTIL strTxt = "N" OR strTxt = CHR$(27)
CLS
PRINT "End of execution."
PRINT "Start time: "; strDate; " "; strTime; ", end time: "; DATE$; " "; TIME$; "."
END
|
Generate an equivalent VB version of this C# code. | string s = "12345";
s = (int.Parse(s) + 1).ToString();
using System.Numerics;
string bis = "123456789012345678999999999";
bis = (BigInteger.Parse(bis) + 1).ToString();
| Dim s As String = "123"
s = CStr(CInt("123") + 1)
s = (CInt("123") + 1).ToString
|
Generate a VB translation of this C# snippet without changing its computational steps. | using System;
public static string RemoveCharactersFromString(string testString, string removeChars)
{
char[] charAry = removeChars.ToCharArray();
string returnString = testString;
foreach (char c in charAry)
{
while (returnString.IndexOf(c) > -1)
{
returnString = returnString.Remove(returnString.IndexOf(c), 1);
}
}
return returnString;
}
| Function StripChars(stString As String, stStripChars As String, Optional bSpace As Boolean)
Dim i As Integer, stReplace As String
If bSpace = True Then
stReplace = " "
Else
stReplace = ""
End If
For i = 1 To Len(stStripChars)
stString = Replace(stString, Mid(stStripChars, i, 1), stReplace)
Next i
StripChars = stString
End Function
|
Produce a functionally identical VB code for the snippet given in C#. | using System;
public static string RemoveCharactersFromString(string testString, string removeChars)
{
char[] charAry = removeChars.ToCharArray();
string returnString = testString;
foreach (char c in charAry)
{
while (returnString.IndexOf(c) > -1)
{
returnString = returnString.Remove(returnString.IndexOf(c), 1);
}
}
return returnString;
}
| Function StripChars(stString As String, stStripChars As String, Optional bSpace As Boolean)
Dim i As Integer, stReplace As String
If bSpace = True Then
stReplace = " "
Else
stReplace = ""
End If
For i = 1 To Len(stStripChars)
stString = Replace(stString, Mid(stStripChars, i, 1), stReplace)
Next i
StripChars = stString
End Function
|
Can you help me rewrite this code in VB instead of C#, keeping it the same logically? | using System;
using System.Linq;
class Program
{
static void Main()
{
Console.WriteLine(new[] { 1, 2, 3 }.Average());
}
}
| Private Function mean(v() As Double, ByVal leng As Integer) As Variant
Dim sum As Double, i As Integer
sum = 0: i = 0
For i = 0 To leng - 1
sum = sum + vv
Next i
If leng = 0 Then
mean = CVErr(xlErrDiv0)
Else
mean = sum / leng
End If
End Function
Public Sub main()
Dim v(4) As Double
Dim i As Integer, leng As Integer
v(0) = 1#
v(1) = 2#
v(2) = 2.178
v(3) = 3#
v(4) = 3.142
For leng = 5 To 0 Step -1
Debug.Print "mean[";
For i = 0 To leng - 1
Debug.Print IIf(i, "; " & v(i), "" & v(i));
Next i
Debug.Print "] = "; mean(v, leng)
Next leng
End Sub
|
Ensure the translated VB code behaves exactly like the original C# snippet. | using System;
using System.Text;
using System.Collections.Generic;
public class TokenizeAStringWithEscaping
{
public static void Main() {
string testcase = "one^|uno||three^^^^|four^^^|^cuatro|";
foreach (var token in testcase.Tokenize(separator: '|', escape: '^')) {
Console.WriteLine(": " + token);
}
}
}
public static class Extensions
{
public static IEnumerable<string> Tokenize(this string input, char separator, char escape) {
if (input == null) yield break;
var buffer = new StringBuilder();
bool escaping = false;
foreach (char c in input) {
if (escaping) {
buffer.Append(c);
escaping = false;
} else if (c == escape) {
escaping = true;
} else if (c == separator) {
yield return buffer.Flush();
} else {
buffer.Append(c);
}
}
if (buffer.Length > 0 || input[input.Length-1] == separator) yield return buffer.Flush();
}
public static string Flush(this StringBuilder stringBuilder) {
string result = stringBuilder.ToString();
stringBuilder.Clear();
return result;
}
}
| Private Function tokenize(s As String, sep As String, esc As String) As Collection
Dim ret As New Collection
Dim this As String
Dim skip As Boolean
If Len(s) <> 0 Then
For i = 1 To Len(s)
si = Mid(s, i, 1)
If skip Then
this = this & si
skip = False
Else
If si = esc Then
skip = True
Else
If si = sep Then
ret.Add this
this = ""
Else
this = this & si
End If
End If
End If
Next i
ret.Add this
End If
Set tokenize = ret
End Function
Public Sub main()
Dim out As Collection
Set out = tokenize("one^|uno||three^^^^|four^^^|^cuatro|", "|", "^")
Dim outstring() As String
ReDim outstring(out.Count - 1)
For i = 0 To out.Count - 1
outstring(i) = out(i + 1)
Next i
Debug.Print Join(outstring, ", ")
End Sub
|
Generate a VB translation of this C# snippet without changing its computational steps. | Using System;
namespace HelloWorld {
class Program
{
static void Main()
{
Console.Writeln("Hello World!");
}
}
}
| Public Sub hello_world_text
Debug.Print "Hello World!"
End Sub
|
Keep all operations the same but rewrite the snippet in VB. | using System;
using System.Collections.Generic;
using System.Linq;
class Program
{
static IEnumerable<int> ForwardDifference(IEnumerable<int> sequence, uint order = 1u)
{
switch (order)
{
case 0u:
return sequence;
case 1u:
return sequence.Skip(1).Zip(sequence, (next, current) => next - current);
default:
return ForwardDifference(ForwardDifference(sequence), order - 1u);
}
}
static void Main()
{
IEnumerable<int> sequence = new[] { 90, 47, 58, 29, 22, 32, 55, 5, 55, 73 };
do
{
Console.WriteLine(string.Join(", ", sequence));
} while ((sequence = ForwardDifference(sequence)).Any());
}
}
| Module ForwardDifference
Sub Main()
Dim lNum As New List(Of Integer)(New Integer() {90, 47, 58, 29, 22, 32, 55, 5, 55, 73})
For i As UInteger = 0 To 9
Console.WriteLine(String.Join(" ", (From n In Difference(i, lNum) Select String.Format("{0,5}", n)).ToArray()))
Next
Console.ReadKey()
End Sub
Private Function Difference(ByVal Level As UInteger, ByVal Numbers As List(Of Integer)) As List(Of Integer)
If Level >= Numbers.Count Then Throw New ArgumentOutOfRangeException("Level", "Level must be less than number of items in Numbers")
For i As Integer = 1 To Level
Numbers = (From n In Enumerable.Range(0, Numbers.Count - 1) _
Select Numbers(n + 1) - Numbers(n)).ToList()
Next
Return Numbers
End Function
End Module
|
Translate this program into VB but keep the logic exactly as in C#. | static bool isPrime(int n)
{
if (n <= 1) return false;
for (int i = 2; i * i <= n; i++)
if (n % i == 0) return false;
return true;
}
| Option Explicit
Sub FirstTwentyPrimes()
Dim count As Integer, i As Long, t(19) As String
Do
i = i + 1
If IsPrime(i) Then
t(count) = i
count = count + 1
End If
Loop While count <= UBound(t)
Debug.Print Join(t, ", ")
End Sub
Function IsPrime(Nb As Long) As Boolean
If Nb = 2 Then
IsPrime = True
ElseIf Nb < 2 Or Nb Mod 2 = 0 Then
Exit Function
Else
Dim i As Long
For i = 3 To Sqr(Nb) Step 2
If Nb Mod i = 0 Then Exit Function
Next
IsPrime = True
End If
End Function
|
Change the following C# code into VB without altering its purpose. | using System;
namespace BinomialCoefficients
{
class Program
{
static void Main(string[] args)
{
ulong n = 1000000, k = 3;
ulong result = biCoefficient(n, k);
Console.WriteLine("The Binomial Coefficient of {0}, and {1}, is equal to: {2}", n, k, result);
Console.ReadLine();
}
static int fact(int n)
{
if (n == 0) return 1;
else return n * fact(n - 1);
}
static ulong biCoefficient(ulong n, ulong k)
{
if (k > n - k)
{
k = n - k;
}
ulong c = 1;
for (uint i = 0; i < k; i++)
{
c = c * (n - i);
c = c / (i + 1);
}
return c;
}
}
}
| Function binomial(n,k)
binomial = factorial(n)/(factorial(n-k)*factorial(k))
End Function
Function factorial(n)
If n = 0 Then
factorial = 1
Else
For i = n To 1 Step -1
If i = n Then
factorial = n
Else
factorial = factorial * i
End If
Next
End If
End Function
WScript.StdOut.Write "the binomial coefficient of 5 and 3 = " & binomial(5,3)
WScript.StdOut.WriteLine
|
Produce a functionally identical VB code for the snippet given in C#. | using System;
namespace BinomialCoefficients
{
class Program
{
static void Main(string[] args)
{
ulong n = 1000000, k = 3;
ulong result = biCoefficient(n, k);
Console.WriteLine("The Binomial Coefficient of {0}, and {1}, is equal to: {2}", n, k, result);
Console.ReadLine();
}
static int fact(int n)
{
if (n == 0) return 1;
else return n * fact(n - 1);
}
static ulong biCoefficient(ulong n, ulong k)
{
if (k > n - k)
{
k = n - k;
}
ulong c = 1;
for (uint i = 0; i < k; i++)
{
c = c * (n - i);
c = c / (i + 1);
}
return c;
}
}
}
| Function binomial(n,k)
binomial = factorial(n)/(factorial(n-k)*factorial(k))
End Function
Function factorial(n)
If n = 0 Then
factorial = 1
Else
For i = n To 1 Step -1
If i = n Then
factorial = n
Else
factorial = factorial * i
End If
Next
End If
End Function
WScript.StdOut.Write "the binomial coefficient of 5 and 3 = " & binomial(5,3)
WScript.StdOut.WriteLine
|
Change the programming language of this snippet from C# to VB without modifying what it does. |
int[] intArray = new int[5] { 1, 2, 3, 4, 5 };
int[] intArray = new int[]{ 1, 2, 3, 4, 5 };
int[] intArray = { 1, 2, 3, 4, 5 };
string[] stringArr = new string[5];
stringArr[0] = "string";
| Dim coll As New Collection
coll.Add "apple"
coll.Add "banana"
|
Write the same algorithm in VB as shown in this C# implementation. | var current = [head of list to traverse]
while(current != null)
{
current = current.Next;
}
| Private Sub Iterate(ByVal list As LinkedList(Of Integer))
Dim node = list.First
Do Until node Is Nothing
node = node.Next
Loop
End Sub
|
Rewrite the snippet below in VB so it works the same as the original C# code. | using System;
using System.IO;
class PPMWriter
{
public static void WriteBitmapToPPM(string file, Bitmap bitmap)
{
var writer = new StreamWriter(file);
writer.WriteLine("P6");
writer.WriteLine($"{bitmap.Width} {bitmap.Height}");
writer.WriteLine("255");
writer.Close();
var writerB = new BinaryWriter(new FileStream(file, FileMode.Append));
for (int x = 0; x < bitmap.Height; x++)
for (int y = 0; y < bitmap.Width; y++)
{
Color color = bitmap.GetPixel(y, x);
writerB.Write(color.R);
writerB.Write(color.G);
writerB.Write(color.B);
}
writerB.Close();
}
}
| Public Shared Sub SaveRasterBitmapToPpmFile(ByVal rasterBitmap As RasterBitmap, ByVal filepath As String)
Dim header As String = String.Format("P6{0}{1}{2}{3}{0}255{0}", vbLf, rasterBitmap.Width, " "c, rasterBitmap.Height)
Dim bufferSize As Integer = header.Length + (rasterBitmap.Width * rasterBitmap.Height * 3)
Dim bytes(bufferSize - 1) As Byte
Buffer.BlockCopy(Encoding.ASCII.GetBytes(header.ToString), 0, bytes, 0, header.Length)
Dim index As Integer = header.Length
For y As Integer = 0 To rasterBitmap.Height - 1
For x As Integer = 0 To rasterBitmap.Width - 1
Dim color As Rgb = rasterBitmap.GetPixel(x, y)
bytes(index) = color.R
bytes(index + 1) = color.G
bytes(index + 2) = color.B
index += 3
Next
Next
My.Computer.FileSystem.WriteAllBytes(filepath, bytes, False)
End Sub
|
Translate the given C# code snippet into VB without altering its behavior. | using System;
using System.IO;
namespace DeleteFile {
class Program {
static void Main() {
File.Delete("input.txt");
Directory.Delete("docs");
File.Delete("/input.txt");
Directory.Delete("/docs");
}
}
}
| Option Explicit
Sub DeleteFileOrDirectory()
Dim myPath As String
myPath = "C:\Users\surname.name\Desktop\Docs"
Kill myPath & "\input.txt"
RmDir myPath
End Sub
|
Transform the following C# implementation into VB, maintaining the same output and logic. | public class AverageLoopLength {
private static int N = 100000;
private static double analytical(int n) {
double[] factorial = new double[n + 1];
double[] powers = new double[n + 1];
powers[0] = 1.0;
factorial[0] = 1.0;
for (int i = 1; i <= n; i++) {
factorial[i] = factorial[i - 1] * i;
powers[i] = powers[i - 1] * n;
}
double sum = 0;
for (int i = 1; i <= n; i++) {
sum += factorial[n] / factorial[n - i] / powers[i];
}
return sum;
}
private static double average(int n) {
Random rnd = new Random();
double sum = 0.0;
for (int a = 0; a < N; a++) {
int[] random = new int[n];
for (int i = 0; i < n; i++) {
random[i] = rnd.Next(n);
}
var seen = new HashSet<double>(n);
int current = 0;
int length = 0;
while (seen.Add(current)) {
length++;
current = random[current];
}
sum += length;
}
return sum / N;
}
public static void Main(string[] args) {
Console.WriteLine(" N average analytical (error)");
Console.WriteLine("=== ========= ============ =========");
for (int i = 1; i <= 20; i++) {
var average = AverageLoopLength.average(i);
var analytical = AverageLoopLength.analytical(i);
Console.WriteLine("{0,3} {1,10:N4} {2,13:N4} {3,8:N2}%", i, average, analytical, (analytical - average) / analytical * 100);
}
}
}
| Const MAX = 20
Const ITER = 1000000
Function expected(n As Long) As Double
Dim sum As Double
For i = 1 To n
sum = sum + WorksheetFunction.Fact(n) / n ^ i / WorksheetFunction.Fact(n - i)
Next i
expected = sum
End Function
Function test(n As Long) As Double
Dim count As Long
Dim x As Long, bits As Long
For i = 1 To ITER
x = 1
bits = 0
Do While Not bits And x
count = count + 1
bits = bits Or x
x = 2 ^ (Int(n * Rnd()))
Loop
Next i
test = count / ITER
End Function
Public Sub main()
Dim n As Long
Debug.Print " n avg. exp. (error%)"
Debug.Print "== ====== ====== ========"
For n = 1 To MAX
av = test(n)
ex = expected(n)
Debug.Print Format(n, "@@"); " "; Format(av, "0.0000"); " ";
Debug.Print Format(ex, "0.0000"); " ("; Format(Abs(1 - av / ex), "0.000%"); ")"
Next n
End Sub
|
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