Instruction stringlengths 45 106 | input_code stringlengths 1 13.7k | output_code stringlengths 1 13.7k |
|---|---|---|
Translate this program into C++ but keep the logic exactly as in Forth. | : ?print dup 1 and if over args type space then ;
: .set begin dup while ?print >r 1+ r> 1 rshift repeat drop drop ;
: .powerset 0 do ." " cr loop ;
: check-none dup 2 < abort" Usage: powerset [val] .. [val]" ;
: check-size dup /cell 8 [*] >= abort" Set too large" ;
: powerset 1 argn check-none check-size 1- lshift .powerset ;
powerset
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Transform the following Forth implementation into Java, maintaining the same output and logic. | : ?print dup 1 and if over args type space then ;
: .set begin dup while ?print >r 1+ r> 1 rshift repeat drop drop ;
: .powerset 0 do ." " cr loop ;
: check-none dup 2 < abort" Usage: powerset [val] .. [val]" ;
: check-size dup /cell 8 [*] >= abort" Set too large" ;
: powerset 1 argn check-none check-size 1- lshift .powerset ;
powerset
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Generate a Python translation of this Forth snippet without changing its computational steps. | : ?print dup 1 and if over args type space then ;
: .set begin dup while ?print >r 1+ r> 1 rshift repeat drop drop ;
: .powerset 0 do ." " cr loop ;
: check-none dup 2 < abort" Usage: powerset [val] .. [val]" ;
: check-size dup /cell 8 [*] >= abort" Set too large" ;
: powerset 1 argn check-none check-size 1- lshift .powerset ;
powerset
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Maintain the same structure and functionality when rewriting this code in VB. | : ?print dup 1 and if over args type space then ;
: .set begin dup while ?print >r 1+ r> 1 rshift repeat drop drop ;
: .powerset 0 do ." " cr loop ;
: check-none dup 2 < abort" Usage: powerset [val] .. [val]" ;
: check-size dup /cell 8 [*] >= abort" Set too large" ;
: powerset 1 argn check-none check-size 1- lshift .powerset ;
powerset
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Ensure the translated Go code behaves exactly like the original Forth snippet. | : ?print dup 1 and if over args type space then ;
: .set begin dup while ?print >r 1+ r> 1 rshift repeat drop drop ;
: .powerset 0 do ." " cr loop ;
: check-none dup 2 < abort" Usage: powerset [val] .. [val]" ;
: check-size dup /cell 8 [*] >= abort" Set too large" ;
: powerset 1 argn check-none check-size 1- lshift .powerset ;
powerset
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Ensure the translated C code behaves exactly like the original Groovy snippet. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Port the following code from Groovy to C# with equivalent syntax and logic. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Please provide an equivalent version of this Groovy code in C++. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Change the programming language of this snippet from Groovy to Java without modifying what it does. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Change the following Groovy code into Python without altering its purpose. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Convert this Groovy snippet to VB and keep its semantics consistent. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Maintain the same structure and functionality when rewriting this code in Go. | def powerSetRec(head, tail) {
if (!tail) return [head]
powerSetRec(head, tail.tail()) + powerSetRec(head + [tail.head()], tail.tail())
}
def powerSet(set) { powerSetRec([], set as List) as Set}
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Produce a functionally identical C code for the snippet given in Haskell. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Preserve the algorithm and functionality while converting the code from Haskell to C#. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Write the same code in C++ as shown below in Haskell. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Write a version of this Haskell function in Java with identical behavior. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Generate a Python translation of this Haskell snippet without changing its computational steps. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Convert this Haskell block to VB, preserving its control flow and logic. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Rewrite the snippet below in Go so it works the same as the original Haskell code. | import Data.Set
import Control.Monad
powerset :: Ord a => Set a -> Set (Set a)
powerset = fromList . fmap fromList . listPowerset . toList
listPowerset :: [a] -> [[a]]
listPowerset = filterM (const [True, False])
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Please provide an equivalent version of this Icon code in C. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Write the same code in C# as shown below in Icon. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Maintain the same structure and functionality when rewriting this code in C++. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Generate an equivalent Java version of this Icon code. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Ensure the translated Python code behaves exactly like the original Icon snippet. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Generate a VB translation of this Icon snippet without changing its computational steps. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Write the same code in Go as shown below in Icon. | procedure power_set (s)
result := set ()
if *s = 0
then insert (result, set ())
else {
head := set(?s)
tail_pset := power_set (x -- head)
result ++:= tail_pset
every ps := !tail_pset do
insert (result, ps ++ head)
}
return result
end
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Write the same code in C as shown below in J. | ps =: #~ 2 #:@i.@^ #
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Ensure the translated C# code behaves exactly like the original J snippet. | ps =: #~ 2 #:@i.@^ #
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Generate a C++ translation of this J snippet without changing its computational steps. | ps =: #~ 2 #:@i.@^ #
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Can you help me rewrite this code in Java instead of J, keeping it the same logically? | ps =: #~ 2 #:@i.@^ #
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Convert this J block to Python, preserving its control flow and logic. | ps =: #~ 2 #:@i.@^ #
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Port the provided J code into VB while preserving the original functionality. | ps =: #~ 2 #:@i.@^ #
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Change the following J code into Go without altering its purpose. | ps =: #~ 2 #:@i.@^ #
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Rewrite this program in C while keeping its functionality equivalent to the Julia version. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Can you help me rewrite this code in C# instead of Julia, keeping it the same logically? | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Please provide an equivalent version of this Julia code in C++. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Keep all operations the same but rewrite the snippet in Java. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Write the same algorithm in Python as shown in this Julia implementation. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Maintain the same structure and functionality when rewriting this code in VB. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Convert the following code from Julia to Go, ensuring the logic remains intact. | function powerset(x::Vector{T})::Vector{Vector{T}} where T
result = Vector{T}[[]]
for elem in x, j in eachindex(result)
push!(result, [result[j] ; elem])
end
result
end
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Port the provided Lua code into C while preserving the original functionality. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Change the programming language of this snippet from Lua to C# without modifying what it does. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Maintain the same structure and functionality when rewriting this code in C++. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Please provide an equivalent version of this Lua code in Java. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Convert the following code from Lua to Python, ensuring the logic remains intact. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Ensure the translated VB code behaves exactly like the original Lua snippet. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Write the same code in Go as shown below in Lua. |
function powerset(s, start)
start = start or 1
if(start > #s) then return {{}} end
local ret = powerset(s, start + 1)
for i = 1, #ret do
ret[#ret + 1] = {s[start], unpack(ret[i])}
end
return ret
end
function powerset(s)
local t = {{}}
for i = 1, #s do
for j = 1, #t do
t[#t+1] = {s[i],unpack(t[j])}
end
end
return t
end
function powerset2(s)
local ret = {{}}
for i = 1, #s do
local k = #ret
for j = 1, k do
ret[k + j] = {s[i], unpack(ret[j])}
end
end
return ret
end
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Translate the given Mathematica code snippet into C without altering its behavior. | Subsets[{a, b, c}]
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Convert this Mathematica block to C#, preserving its control flow and logic. | Subsets[{a, b, c}]
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Ensure the translated C++ code behaves exactly like the original Mathematica snippet. | Subsets[{a, b, c}]
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Produce a functionally identical Java code for the snippet given in Mathematica. | Subsets[{a, b, c}]
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Ensure the translated Python code behaves exactly like the original Mathematica snippet. | Subsets[{a, b, c}]
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Port the following code from Mathematica to VB with equivalent syntax and logic. | Subsets[{a, b, c}]
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Translate this program into Go but keep the logic exactly as in Mathematica. | Subsets[{a, b, c}]
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Maintain the same structure and functionality when rewriting this code in C. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Produce a functionally identical C# code for the snippet given in MATLAB. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Maintain the same structure and functionality when rewriting this code in C++. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Write a version of this MATLAB function in Java with identical behavior. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Maintain the same structure and functionality when rewriting this code in Python. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Translate the given MATLAB code snippet into VB without altering its behavior. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Change the programming language of this snippet from MATLAB to Go without modifying what it does. | function pset = powerset(theSet)
pset = cell(size(theSet));
for i = ( 0:(2^numel(theSet))-1 )
indicies = logical(bitget( i,(1:numel(theSet)) ));
pset(i+1) = {theSet(indicies)};
end
end
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Port the provided Nim code into C while preserving the original functionality. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Maintain the same structure and functionality when rewriting this code in C#. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Can you help me rewrite this code in C++ instead of Nim, keeping it the same logically? | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Maintain the same structure and functionality when rewriting this code in Java. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Maintain the same structure and functionality when rewriting this code in Python. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Keep all operations the same but rewrite the snippet in VB. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Port the provided Nim code into Go while preserving the original functionality. | import sets, hashes
proc hash(x: HashSet[int]): Hash =
var h = 0
for i in x: h = h !& hash(i)
result = !$h
proc powerset[T](inset: HashSet[T]): HashSet[HashSet[T]] =
result.incl(initHashSet[T]())
for val in inset:
let previous = result
for aSet in previous:
var newSet = aSet
newSet.incl(val)
result.incl(newSet)
echo powerset([1,2,3,4].toHashSet())
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Transform the following OCaml implementation into C, maintaining the same output and logic. | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Can you help me rewrite this code in C# instead of OCaml, keeping it the same logically? | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Convert this OCaml block to C++, preserving its control flow and logic. | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Change the programming language of this snippet from OCaml to Java without modifying what it does. | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Can you help me rewrite this code in Python instead of OCaml, keeping it the same logically? | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Change the following OCaml code into VB without altering its purpose. | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Write a version of this OCaml function in Go with identical behavior. | module PowerSet(S: Set.S) =
struct
include Set.Make (S)
let map f s =
let work x r = add (f x) r in
fold work s empty
;;
let powerset s =
let base = singleton (S.empty) in
let work x r = union r (map (S.add x) r) in
S.fold work s base
;;
end;;
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Preserve the algorithm and functionality while converting the code from Perl to C. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Produce a functionally identical C# code for the snippet given in Perl. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Maintain the same structure and functionality when rewriting this code in Java. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Write the same algorithm in Python as shown in this Perl implementation. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Preserve the algorithm and functionality while converting the code from Perl to VB. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Transform the following Perl implementation into Go, maintaining the same output and logic. | use Algorithm::Combinatorics "subsets";
my @S = ("a","b","c");
my @PS;
my $iter = subsets(\@S);
while (my $p = $iter->next) {
push @PS, "[@$p]"
}
say join(" ",@PS);
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Generate an equivalent C version of this PowerShell code. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Write the same code in C# as shown below in PowerShell. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Can you help me rewrite this code in C++ instead of PowerShell, keeping it the same logically? | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Generate an equivalent Java version of this PowerShell code. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Keep all operations the same but rewrite the snippet in Python. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Maintain the same structure and functionality when rewriting this code in VB. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Write the same code in Go as shown below in PowerShell. | function power-set ($array) {
if($array) {
$n = $array.Count
function state($set, $i){
if($i -gt -1) {
state $set ($i-1)
state ($set+@($array[$i])) ($i-1)
} else {
"$($set | sort)"
}
}
$set = state @() ($n-1)
$power = 0..($set.Count-1) | foreach{@(0)}
$i = 0
$set | sort | foreach{$power[$i++] = $_.Split()}
$power | sort {$_.Count}
} else {@()}
}
$OFS = " "
$setA = power-set @(1,2,3,4)
"number of sets in setA: $($setA.Count)"
"sets in setA:"
$OFS = ", "
$setA | foreach{"{"+"$_"+"}"}
$setB = @()
"number of sets in setB: $($setB.Count)"
"sets in setB:"
$setB | foreach{"{"+"$_"+"}"}
$setC = @(@(), @(@()))
"number of sets in setC: $($setC.Count)"
"sets in setC:"
$setC | foreach{"{"+"$_"+"}"}
$OFS = " "
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Write the same code in C as shown below in R. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Write the same algorithm in C# as shown in this R implementation. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Port the provided R code into C++ while preserving the original functionality. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Please provide an equivalent version of this R code in Java. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Can you help me rewrite this code in Python instead of R, keeping it the same logically? | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
Rewrite this program in VB while keeping its functionality equivalent to the R version. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| Option Base 1
Private Function power_set(ByRef st As Collection) As Collection
Dim subset As Collection, pwset As New Collection
For i = 0 To 2 ^ st.Count - 1
Set subset = New Collection
For j = 1 To st.Count
If i And 2 ^ (j - 1) Then subset.Add st(j)
Next j
pwset.Add subset
Next i
Set power_set = pwset
End Function
Private Function print_set(ByRef st As Collection) As String
Dim s() As String, t() As String
ReDim s(st.Count)
For i = 1 To st.Count
If st(i).Count > 0 Then
ReDim t(st(i).Count)
For j = 1 To st(i).Count
Select Case TypeName(st(i)(j))
Case "Integer": t(j) = CStr(st(i)(j))
Case "Collection": t(j) = "{}"
End Select
Next j
s(i) = "{" & Join(t, ", ") & "}"
Else
s(i) = "{}"
End If
Next i
print_set = "{" & Join(s, ", ") & "}"
End Function
Public Sub rc()
Dim rcset As New Collection, result As Collection
For i = 1 To 4
rcset.Add i
Next i
Debug.Print print_set(power_set(rcset))
Set rcset = New Collection
Debug.Print print_set(power_set(rcset))
Dim emptyset As New Collection
rcset.Add emptyset
Debug.Print print_set(power_set(rcset))
Debug.Print
End Sub
|
Write the same algorithm in Go as shown in this R implementation. | powerset <- function(set){
ps <- list()
ps[[1]] <- numeric()
for(element in set){
temp <- vector(mode="list",length=length(ps))
for(subset in 1:length(ps)){
temp[[subset]] = c(ps[[subset]],element)
}
ps <- c(ps,temp)
}
ps
}
powerset(1:4)
| package main
import (
"fmt"
"strconv"
"strings"
)
type elem interface {
Eq(elem) bool
fmt.Stringer
}
type Int int
func (i Int) Eq(e elem) bool {
j, ok := e.(Int)
return ok && i == j
}
func (i Int) String() string {
return strconv.Itoa(int(i))
}
type set []elem
func (s *set) add(e elem) {
if !s.has(e) {
*s = append(*s, e)
}
}
func (s *set) has(e elem) bool {
for _, ex := range *s {
if e.Eq(ex) {
return true
}
}
return false
}
func (s set) ok() bool {
for i, e0 := range s {
for _, e1 := range s[i+1:] {
if e0.Eq(e1) {
return false
}
}
}
return true
}
func (s set) Eq(e elem) bool {
t, ok := e.(set)
if !ok {
return false
}
if len(s) != len(t) {
return false
}
for _, se := range s {
if !t.has(se) {
return false
}
}
return true
}
func (s set) String() string {
if len(s) == 0 {
return "β
"
}
var buf strings.Builder
buf.WriteRune('{')
for i, e := range s {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(e.String())
}
buf.WriteRune('}')
return buf.String()
}
func (s set) powerSet() set {
r := set{set{}}
for _, es := range s {
var u set
for _, er := range r {
er := er.(set)
u = append(u, append(er[:len(er):len(er)], es))
}
r = append(r, u...)
}
return r
}
func main() {
var s set
for _, i := range []Int{1, 2, 2, 3, 4, 4, 4} {
s.add(i)
}
fmt.Println(" s:", s, "length:", len(s))
ps := s.powerSet()
fmt.Println(" π·(s):", ps, "length:", len(ps))
fmt.Println("\n(extra credit)")
var empty set
fmt.Println(" empty:", empty, "len:", len(empty))
ps = empty.powerSet()
fmt.Println(" π·(β
):", ps, "len:", len(ps))
ps = ps.powerSet()
fmt.Println("π·(π·(β
)):", ps, "len:", len(ps))
fmt.Println("\n(regression test for earlier bug)")
s = set{Int(1), Int(2), Int(3), Int(4), Int(5)}
fmt.Println(" s:", s, "length:", len(s), "ok:", s.ok())
ps = s.powerSet()
fmt.Println(" π·(s):", "length:", len(ps), "ok:", ps.ok())
for _, e := range ps {
if !e.(set).ok() {
panic("invalid set in ps")
}
}
}
|
Generate an equivalent C version of this Racket code. |
(define (powerset s)
(for/fold ([outer-set (set(set))]) ([element s])
(set-union outer-set
(list->set (set-map outer-set
(Ξ»(inner-set) (set-add inner-set element)))))))
| #include <stdio.h>
struct node {
char *s;
struct node* prev;
};
void powerset(char **v, int n, struct node *up)
{
struct node me;
if (!n) {
putchar('[');
while (up) {
printf(" %s", up->s);
up = up->prev;
}
puts(" ]");
} else {
me.s = *v;
me.prev = up;
powerset(v + 1, n - 1, up);
powerset(v + 1, n - 1, &me);
}
}
int main(int argc, char **argv)
{
powerset(argv + 1, argc - 1, 0);
return 0;
}
|
Port the provided Racket code into C# while preserving the original functionality. |
(define (powerset s)
(for/fold ([outer-set (set(set))]) ([element s])
(set-union outer-set
(list->set (set-map outer-set
(Ξ»(inner-set) (set-add inner-set element)))))))
| public IEnumerable<IEnumerable<T>> GetPowerSet<T>(List<T> list)
{
return from m in Enumerable.Range(0, 1 << list.Count)
select
from i in Enumerable.Range(0, list.Count)
where (m & (1 << i)) != 0
select list[i];
}
public void PowerSetofColors()
{
var colors = new List<KnownColor> { KnownColor.Red, KnownColor.Green,
KnownColor.Blue, KnownColor.Yellow };
var result = GetPowerSet(colors);
Console.Write( string.Join( Environment.NewLine,
result.Select(subset =>
string.Join(",", subset.Select(clr => clr.ToString()).ToArray())).ToArray()));
}
|
Generate a C++ translation of this Racket snippet without changing its computational steps. |
(define (powerset s)
(for/fold ([outer-set (set(set))]) ([element s])
(set-union outer-set
(list->set (set-map outer-set
(Ξ»(inner-set) (set-add inner-set element)))))))
| #include <iostream>
#include <set>
#include <vector>
#include <iterator>
#include <algorithm>
typedef std::set<int> set_type;
typedef std::set<set_type> powerset_type;
powerset_type powerset(set_type const& set)
{
typedef set_type::const_iterator set_iter;
typedef std::vector<set_iter> vec;
typedef vec::iterator vec_iter;
struct local
{
static int dereference(set_iter v) { return *v; }
};
powerset_type result;
vec elements;
do
{
set_type tmp;
std::transform(elements.begin(), elements.end(),
std::inserter(tmp, tmp.end()),
local::dereference);
result.insert(tmp);
if (!elements.empty() && ++elements.back() == set.end())
{
elements.pop_back();
}
else
{
set_iter iter;
if (elements.empty())
{
iter = set.begin();
}
else
{
iter = elements.back();
++iter;
}
for (; iter != set.end(); ++iter)
{
elements.push_back(iter);
}
}
} while (!elements.empty());
return result;
}
int main()
{
int values[4] = { 2, 3, 5, 7 };
set_type test_set(values, values+4);
powerset_type test_powerset = powerset(test_set);
for (powerset_type::iterator iter = test_powerset.begin();
iter != test_powerset.end();
++iter)
{
std::cout << "{ ";
char const* prefix = "";
for (set_type::iterator iter2 = iter->begin();
iter2 != iter->end();
++iter2)
{
std::cout << prefix << *iter2;
prefix = ", ";
}
std::cout << " }\n";
}
}
|
Write a version of this Racket function in Java with identical behavior. |
(define (powerset s)
(for/fold ([outer-set (set(set))]) ([element s])
(set-union outer-set
(list->set (set-map outer-set
(Ξ»(inner-set) (set-add inner-set element)))))))
| public static ArrayList<String> getpowerset(int a[],int n,ArrayList<String> ps)
{
if(n<0)
{
return null;
}
if(n==0)
{
if(ps==null)
ps=new ArrayList<String>();
ps.add(" ");
return ps;
}
ps=getpowerset(a, n-1, ps);
ArrayList<String> tmp=new ArrayList<String>();
for(String s:ps)
{
if(s.equals(" "))
tmp.add(""+a[n-1]);
else
tmp.add(s+a[n-1]);
}
ps.addAll(tmp);
return ps;
}
|
Keep all operations the same but rewrite the snippet in Python. |
(define (powerset s)
(for/fold ([outer-set (set(set))]) ([element s])
(set-union outer-set
(list->set (set-map outer-set
(Ξ»(inner-set) (set-add inner-set element)))))))
| def list_powerset(lst):
result = [[]]
for x in lst:
result.extend([subset + [x] for subset in result])
return result
def list_powerset2(lst):
return reduce(lambda result, x: result + [subset + [x] for subset in result],
lst, [[]])
def powerset(s):
return frozenset(map(frozenset, list_powerset(list(s))))
|
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