message stringlengths 2 11.9k | message_type stringclasses 2 values | message_id int64 0 1 | conversation_id int64 137 108k | cluster float64 18 18 | __index_level_0__ int64 274 217k |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7 | instruction | 0 | 25,422 | 18 | 50,844 |
"Correct Solution:
```
import itertools
n = int(input())
d = {'M': 0, 'A': 0, 'R': 0, 'C': 0, 'H': 0}
for i in range(n):
s = input()
if s[0] in d:
d[s[0]] += 1
ans = 0
for v in itertools.combinations(d, 3):
ans += d[v[0]] * d[v[1]] * d[v[2]]
print(ans)
``` | output | 1 | 25,422 | 18 | 50,845 |
Provide a correct Python 3 solution for this coding contest problem.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7 | instruction | 0 | 25,423 | 18 | 50,846 |
"Correct Solution:
```
from itertools import*
x=sorted(s[0]for s in open(0).readlines()[1:])
#print(list(x))
c=[len(list(v))for k,v in groupby(x)if k in"MARCH"]
#print(c)
y=combinations(c,3)
#print(list(y))
print(sum(p*q*r for p,q,r in list(y)))
``` | output | 1 | 25,423 | 18 | 50,847 |
Provide a correct Python 3 solution for this coding contest problem.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7 | instruction | 0 | 25,424 | 18 | 50,848 |
"Correct Solution:
```
import itertools
A = "MARCH"
c = {a: 0 for a in A}
N = int(input())
for _ in range(N):
S = input()
if S[0] in A:
c[S[0]] += 1
print(sum([c[cb[0]] * c[cb[1]] * c[cb[2]]
for cb in itertools.combinations(A, 3)]))
``` | output | 1 | 25,424 | 18 | 50,849 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7
Submitted Solution:
```
N=int(input())
S=[]
for i in range(N):
x=input()
S.append(x)
S1=[]
for i in S:
if i[0] == "M":
if i not in S1:
S1.append(i)
if i[0] == "A":
if i not in S1:
S1.append(i)
if i[0] == "R":
if i not in S1:
S1.append(i)
if i[0] == "C":
if i not in S1:
S1.append(i)
if i[0] == "H":
if i not in S1:
S1.append(i)
dict={}
for i in range(len(S1)):
x=S1[i]
if x[0] in dict:
dict[x[0]] += 1
else:
dict[x[0]] = 1
if len(dict) < 3:
print("0")
if len(dict) == 3:
list3 = list(dict.values())
print(list3[0]*list3[1]*list3[2])
if len(dict) == 4:
list4 = list(dict.values())
print((list4[0]*list4[1]*list4[2])+(list4[0]*list4[2]*list4[3])+(list4[1]*list4[2]*list4[3])+(list4[0]*list4[1]*list4[3]))
if len(dict) == 5:
a = list(dict.values())
print((a[0]+a[1]+a[2])+(a[0]+a[2]+a[3])+(a[0]+a[3]+a[4])+(a[0]+a[1]+a[3])+(a[0]+a[1]+a[4])+(a[1]+a[2]+a[3])+(a[1]+a[2]+a[4])+(a[1]+a[3]+a[4])+(a[2]+a[3]+a[4])+(a[0]+a[2]+a[4]))
``` | instruction | 0 | 25,430 | 18 | 50,860 |
No | output | 1 | 25,430 | 18 | 50,861 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7
Submitted Solution:
```
N=int(input())
name=[]
for i in range(N):
name.append(input())
M=0
A=0
R=0
C=0
H=0
letters=['M','A','R','C','H']
for i in range(N):
for j in letters:
if name[i][0]==j:
if j=='M':
M+=1
elif j=='A':
A+=1
elif j=='R':
R+=1
elif j=='C':
C+=1
elif j=='H':
H+=1
counter=0
if M==0:
M+=1
counter+=1
if A==0:
A+=1
counter+=1
if C==0:
C+=1
counter+=1
if R==0:
R+=1
counter+=1
if H==0:
H+=1
counter+=1
counter=5-counter
if counter<3:
print(0)
exit()
print(counter*(counter-1)*(counter-2)//6*M*A*C*R*H)
``` | instruction | 0 | 25,431 | 18 | 50,862 |
No | output | 1 | 25,431 | 18 | 50,863 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people. The name of the i-th person is S_i.
We would like to choose three people so that the following conditions are met:
* The name of every chosen person begins with `M`, `A`, `R`, `C` or `H`.
* There are no multiple people whose names begin with the same letter.
How many such ways are there to choose three people, disregarding order?
Note that the answer may not fit into a 32-bit integer type.
Constraints
* 1 \leq N \leq 10^5
* S_i consists of uppercase English letters.
* 1 \leq |S_i| \leq 10
* S_i \neq S_j (i \neq j)
Input
Input is given from Standard Input in the following format:
N
S_1
:
S_N
Output
If there are x ways to choose three people so that the given conditions are met, print x.
Examples
Input
5
MASHIKE
RUMOI
OBIRA
HABORO
HOROKANAI
Output
2
Input
4
ZZ
ZZZ
Z
ZZZZZZZZZZ
Output
0
Input
5
CHOKUDAI
RNG
MAKOTO
AOKI
RINGO
Output
7
Submitted Solution:
```
import collections
import math
N = int(input())
S = [input()[0] for _ in range(N)]
S = [s for s in S if s in ['M','A','R','C','H']]
C = collections.Counter(S)
ans = math.comb(len(list(C.elements())), 3)
L = list(C.most_common())
for s,c in L:
if c > 1:
ans -= (c - 1) * (len(L) - 1)
print(ans)
``` | instruction | 0 | 25,432 | 18 | 50,864 |
No | output | 1 | 25,432 | 18 | 50,865 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,485 | 18 | 50,970 |
"Correct Solution:
```
import re
A = ">'=+#=+~$"
B = ">\^(Q=)+~~$"
n = int(input())
for i in range(n):
s = input()
if re.match(A,s):
a, b = re.match(A,s).group().split("#")
print("A" if a.count("=") == b.count("=") else "NA")
elif re.match(B,s):
print("B")
else:
print("NA")
``` | output | 1 | 25,485 | 18 | 50,971 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,486 | 18 | 50,972 |
"Correct Solution:
```
n=int(input())
for times in range(n):
s=input()
ans="NA"
#A???????????§
if s[:2]==">'" and s[-1]=="~":
t=s[2:-1].split("#")
if len(t)==2 and len(t[0])>0:
valid=True
for v in t[0]:
if v!="=":
valid=False
break
if valid and t[0]==t[1]:
ans="A"
#B???????????§
elif s[:2]==">^" and s[-2:]=="~~":
t=s[2:-2]
if len(t)>0 and len(t)%2==0:
valid=True
for i in range(0,len(t),2):
if t[i:i+2]!="Q=":
valid=False
break
if valid:
ans="B"
print(ans)
``` | output | 1 | 25,486 | 18 | 50,973 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,487 | 18 | 50,974 |
"Correct Solution:
```
def checkA(s):
l = len(s)
if l % 2 == 0:
return False
ll = (l-1)//2
for i in range(ll):
if s[i] != "=" or s[l-1-i] != "=":
return False
if s[ll] != "#":
return False
return True
def checkB(s):
l = len(s)
if l % 2 == 1:
return False
ll = l // 2
for i in range(ll):
if s[2*i] != "Q" or s[2*i+1] != "=":
return False
return True
def check(s):
if len(s) < 6:
return "NA"
if s[0:2] == ">'" and s[-1:] == "~":
if checkA(s[2:-1]):
return "A"
else:
return "NA"
if s[0:2] == ">^" and s[-2:] == "~~":
if checkB(s[2:-2]):
return "B"
else:
return "NA"
return "NA"
N = int(input())
for i in range(N):
s = input()
print(check(s))
``` | output | 1 | 25,487 | 18 | 50,975 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,488 | 18 | 50,976 |
"Correct Solution:
```
for _ in [0]*int(input()):
s=input()
a='NA'
if s[:2]==">'" and s[-1]=='~' and '#' in s:
s=s[2:-1].split('#')
a=[a,'A'][set(s[0])==set(s[1])=={'='} and len(set(s))==1]
elif s[:2]=='>^' and s[-2:]=='~~':
s=s[2:-2]
a=['NA','B'][len(s)==2*s.count('Q=') and len(s)>0]
print(a)
``` | output | 1 | 25,488 | 18 | 50,977 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,489 | 18 | 50,978 |
"Correct Solution:
```
for _ in [0]*int(input()):
s=input()
if s[:2]==">'" and s[-1]=='~' and '#' in s:
s=s[2:-1].split('#')
print(['NA','A'][set(s[0])==set(s[1])=={'='} and len(set(s))==1])
elif s[:2]=='>^' and s[-2:]=='~~':
s=s[2:-2]
print(['NA','B'][len(s)==2*s.count('Q=') and len(s)>0])
else:print('NA')
``` | output | 1 | 25,489 | 18 | 50,979 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,490 | 18 | 50,980 |
"Correct Solution:
```
# -*- coding: utf-8 -*-
"""
http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0139
"""
import sys
from sys import stdin
import re
input = stdin.readline
def identify_snake(snake):
# ????????????>`???????¶???????1?????\?????????=]??????#??????????????§1?????\?????????=??????????????????~??????????????¨?????????=?????°?????????
patternA = re.compile("^>'(=+)#(=+)~")
resultA = patternA.search(snake)
if resultA:
pre, post = resultA.groups()
if pre == post:
return 'A'
# ????????????>^???????¶???????1?????\?????????Q=]???????????????????????????~~???
patternB = re.compile("^>\^(Q=)+~~")
resultB = patternB.search(snake)
if resultB:
return 'B'
return 'NA'
def main(args):
n = int(input())
for _ in range(n):
snake = input()
result = identify_snake(snake)
print(result)
if __name__ == '__main__':
main(sys.argv[1:])
``` | output | 1 | 25,490 | 18 | 50,981 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,491 | 18 | 50,982 |
"Correct Solution:
```
n = int(input())
for i in range(n):
s = input()
if s[:2] == ">'" and s[-1] == '~' and len(s) % 2 == 0 and '=#=' in s:
temp = ">'" + '=' * (s.count('=')//2) + '#' + '=' * (s.count('=')//2) + '~'
if s == temp:
print('A')
continue
elif s[:2] == ">^" and s[-2:] == '~~' and len(s) % 2 == 0 and 'Q=' in s:
temp = ">^" + 'Q=' * ((len(s)-4)//2) + '~~'
if s == temp:
print('B')
continue
print('NA')
``` | output | 1 | 25,491 | 18 | 50,983 |
Provide a correct Python 3 solution for this coding contest problem.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA | instruction | 0 | 25,492 | 18 | 50,984 |
"Correct Solution:
```
class Ex(Exception):
pass
n=int(input())
for i in range(n):
try:
snk=input()
l=len(snk)
head=snk[:2]
body=snk[2:l-1]
tail=snk[l-1]
if tail!='~' or snk[0]!='>':
print("NA")
continue
spl_a=body.split('#')
if len(spl_a)==2 and spl_a[0]==spl_a[1] and len(spl_a[0])!=0:
for char in spl_a[0]:
if char!='=':
print("NA")
raise Ex()
if head[1]=='\'':
print('A')
raise Ex()
else:
print("NA")
raise Ex()
bars=body.split('=')
if len(bars)==1:
print("NA")
continue
for j in range(len(bars)-1):
if bars[j]!='Q':
print("NA")
raise Ex()
if head[1]=='^'and bars[len(bars)-1]=='~':print('B')
else:print("NA")
except Ex:pass
``` | output | 1 | 25,492 | 18 | 50,985 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
# AOJ 0139 Snakes
# Python3 2018.6.19 bal4u
import re
pa = ">'(=+)#(=+)~$" # A >'======#======~
pb = ">\^(Q=)+~~$" # B >^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
for i in range(int(input())):
s = input()
r = re.match(pa, s)
if r and r.group(1) == r.group(2): print('A')
elif re.match(pb, s): print('B')
else: print('NA')
``` | instruction | 0 | 25,493 | 18 | 50,986 |
Yes | output | 1 | 25,493 | 18 | 50,987 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
def checkA(s):
if s[:2] == ">'" and s[-1] == "~":
body = s[2:-1]
if len(body) >= 3 and body.count("#") == 1 and body.index("#") == len(body) // 2 and body.count("=") == len(body) - 1:
return True
else:
return False
else:
return False
def checkB(s):
if s[:2] == ">^" and s[-2:] == "~~":
body = s[2:-2]
if len(body) > 0 and len(body) % 2 == 0:
for i in range(0, len(body), 2):
if body[i:i + 2] != "Q=":
return False
else:
return True
else:
return False
else:
return False
n = int(input())
for _ in range(n):
s = input()
if len(s) <= 5:
print("NA")
else:
if checkA(s):
print("A")
elif checkB(s):
print("B")
else:
print("NA")
``` | instruction | 0 | 25,494 | 18 | 50,988 |
Yes | output | 1 | 25,494 | 18 | 50,989 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
import re
A = ">'(=+)#\\1~$"
B = ">\^(Q=)+~~$"
for i in range(int(input())):
s = input()
r = re.match(A, s)
if re.match(A, s): print('A')
elif re.match(B, s): print('B')
else: print('NA')
``` | instruction | 0 | 25,495 | 18 | 50,990 |
Yes | output | 1 | 25,495 | 18 | 50,991 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
import re
SNAKE_A = re.compile(r">'(=+)#\1~")
SNAKE_B = re.compile(r">\^(Q=)+~~")
def answer(regex, string, output):
result = regex.fullmatch(string)
if result is not None:
print(output)
else:
print("NA")
for _ in range(int(input())):
snake = input()
if snake[1] == "'":
answer(SNAKE_A, snake, "A")
else:
answer(SNAKE_B, snake, "B")
``` | instruction | 0 | 25,496 | 18 | 50,992 |
Yes | output | 1 | 25,496 | 18 | 50,993 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
for _ in [0]*int(input()):
s=input()
a='NA'
if s[1]=="'" and s[-1]=='~' and '#' in s:
s=s[2:-1].split('#')
a=[a,'A'][set(s[0])==set(s[1])=={'='} and len(set(s))==1]
elif s[1]=='^' and s[-2:]=='~~':
s=s[2:-2]
a=['NA','B'][len(s)==2*s.count('Q=') and len(s)>0]
print(a)
``` | instruction | 0 | 25,497 | 18 | 50,994 |
No | output | 1 | 25,497 | 18 | 50,995 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
n = int(input())
for i in range(n):
s = input()
if s[:2] == ">'" and s[-1] == '~' and len(s) % 2 == 0:
temp = ">'" + '=' * (s.count('=')//2) + '#' + '=' * (s.count('=')//2) + '~'
if s == temp:
print('A')
continue
elif s[:2] == ">^" and s[-2:] == '~~' and len(s) % 2 == 0:
temp = ">^" + 'Q=' * ((len(s)-4)//2) + '~~'
if s == temp:
print('B')
continue
print('NA')
``` | instruction | 0 | 25,498 | 18 | 50,996 |
No | output | 1 | 25,498 | 18 | 50,997 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
# -*- coding: utf-8 -*-
import sys
import os
N = int(input())
def is_A(s):
if s[0:2] != ">'":
return False
if s[-1] != '~':
return False
body = s[2:-1]
if len(body) % 2 == 0:
return False
# body = '==#=='
center_index = len(body) // 2
if body[center_index] != '#':
return False
if body.count('#') != 1:
return False
lst = body.split('#')
if len(lst) != 2:
return False
if lst[0] == lst[1] and len(lst[0]) == lst[0].count('='):
return True
else:
return False
def is_B(s):
if s[0:2] != ">^":
return False
if s[-2:] != '~~':
return False
body = s[2:-2]
if len(body) % 2 != 0:
return False
elif body.count('Q=') == len(body) / 2:
return True
else:
return False
for s in sys.stdin:
s = s.strip()
if is_A(s):
print('A')
elif is_B(s):
print('B')
else:
print('NA')
``` | instruction | 0 | 25,499 | 18 | 50,998 |
No | output | 1 | 25,499 | 18 | 50,999 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In a world, a mysterious snake made of only letters lives. Two types of snakes are currently identified, type A and type B, but there may be other types as well.
For class A, after ">'" is followed by one or more "=", "#" comes, and after the same number of "=" as before, "~" (half-width tilde) finish.
Class B ends with "~~" after "> ^" followed by one or more "Q =".
Example of type A:>'==== # ==== ~>'== # == ~
Example of B type:> ^ Q = Q = Q = Q = ~~> ^ Q = Q = ~~
Receives a snake as character string data, determines what kind it is, and outputs "A" for type A, "B" for type B, and "NA" for other types. Please create a program to do.
Input
The input is given in the following format:
n
S1
S2
::
Sn
The number of snakes identified on the first line n (1 ≤ n ≤ 10000), and the following n lines contain the i-th snake string Si (200 characters or less, without spaces) on each line. Is given to.
Output
Print the i-th snake type A, B or NA on line i.
Example
Input
3
>'======#======~
>^Q=Q=Q=Q=Q=Q=Q=Q=Q=~~
>'===#====~
Output
A
B
NA
Submitted Solution:
```
class Ex(Exception):
pass
n=int(input())
for i in range(n):
try:
snk=input()
l=len(snk)
head=snk[:2]
body=snk[2:l-1]
tail=snk[l-1]
if tail!='~' or snk[0]!='>':
print("NA")
continue
spl_a=body.split('#')
if len(spl_a)==2 and spl_a[0]==spl_a[1] and len(spl_a[0])!=0:
for char in spl_a[0]:
if char!='=':
print("NA")
raise Ex()
if head[1]=='\'':
print('A')
raise Ex()
else:
print("NA")
raise Ex()
bars=body.split('=')
for j in range(len(bars)-1):
if bars[j]!='Q':
print("NA")
raise Ex()
if head[1]=='^'and bars[len(bars)-1]=='~':print('B')
else:print("NA")
except Ex:pass
``` | instruction | 0 | 25,500 | 18 | 51,000 |
No | output | 1 | 25,500 | 18 | 51,001 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia is an amateur programmer. Today on the IT lesson she learned about the Hamming distance.
The Hamming distance between two strings s = s1s2... sn and t = t1t2... tn of equal length n is value <image>. Record [si ≠ ti] is the Iverson notation and represents the following: if si ≠ ti, it is one, otherwise — zero.
Now Xenia wants to calculate the Hamming distance between two long strings a and b. The first string a is the concatenation of n copies of string x, that is, <image>. The second string b is the concatenation of m copies of string y.
Help Xenia, calculate the required Hamming distance, given n, x, m, y.
Input
The first line contains two integers n and m (1 ≤ n, m ≤ 1012). The second line contains a non-empty string x. The third line contains a non-empty string y. Both strings consist of at most 106 lowercase English letters.
It is guaranteed that strings a and b that you obtain from the input have the same length.
Output
Print a single integer — the required Hamming distance.
Please, do not use the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
100 10
a
aaaaaaaaaa
Output
0
Input
1 1
abacaba
abzczzz
Output
4
Input
2 3
rzr
az
Output
5
Note
In the first test case string a is the same as string b and equals 100 letters a. As both strings are equal, the Hamming distance between them is zero.
In the second test case strings a and b differ in their 3-rd, 5-th, 6-th and 7-th characters. Thus, the Hamming distance equals 4.
In the third test case string a is rzrrzr and string b is azazaz. The strings differ in all characters apart for the second one, the Hamming distance between them equals 5.
Submitted Solution:
```
n, m= map(int, input().split(" ",2))
x=str(input())
y=str(input())
a=[]
b=[]
count=0
for i in range(n):
a.append(x)
for j in range(m):
b.append(y)
a="".join(a)
b="".join(b)
for q in range(len(a)):
print("ff")
if(a[q]!=b[q]):
count=count+1
print(count)
``` | instruction | 0 | 25,936 | 18 | 51,872 |
No | output | 1 | 25,936 | 18 | 51,873 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia is an amateur programmer. Today on the IT lesson she learned about the Hamming distance.
The Hamming distance between two strings s = s1s2... sn and t = t1t2... tn of equal length n is value <image>. Record [si ≠ ti] is the Iverson notation and represents the following: if si ≠ ti, it is one, otherwise — zero.
Now Xenia wants to calculate the Hamming distance between two long strings a and b. The first string a is the concatenation of n copies of string x, that is, <image>. The second string b is the concatenation of m copies of string y.
Help Xenia, calculate the required Hamming distance, given n, x, m, y.
Input
The first line contains two integers n and m (1 ≤ n, m ≤ 1012). The second line contains a non-empty string x. The third line contains a non-empty string y. Both strings consist of at most 106 lowercase English letters.
It is guaranteed that strings a and b that you obtain from the input have the same length.
Output
Print a single integer — the required Hamming distance.
Please, do not use the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
100 10
a
aaaaaaaaaa
Output
0
Input
1 1
abacaba
abzczzz
Output
4
Input
2 3
rzr
az
Output
5
Note
In the first test case string a is the same as string b and equals 100 letters a. As both strings are equal, the Hamming distance between them is zero.
In the second test case strings a and b differ in their 3-rd, 5-th, 6-th and 7-th characters. Thus, the Hamming distance equals 4.
In the third test case string a is rzrrzr and string b is azazaz. The strings differ in all characters apart for the second one, the Hamming distance between them equals 5.
Submitted Solution:
```
m,n=map(int,input().split())
a=input()
b=input()
count=0
if n==m:
for i in range(len(a)):
if a[i]==b[i]:
count+=1
print(m*(len(a)-count))
else:
if n<m:
c=m
m=n
n=c
c=a
a=b
b=c
di={}
lm=len(a)*m
ln=len(b)*n
for i in range(len(a)):
j=i
while j<=lm:
if a[i] in di:
di[a[i]][j]=0
else:
di[a[i]]={i:0}
j+=len(a)
for j in range(len(b)):
k=j
while k<=ln:
if b[j] in di and k in di[b[j]]:
count+=1
k+=len(b)
print(lm-count)
``` | instruction | 0 | 25,937 | 18 | 51,874 |
No | output | 1 | 25,937 | 18 | 51,875 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia is an amateur programmer. Today on the IT lesson she learned about the Hamming distance.
The Hamming distance between two strings s = s1s2... sn and t = t1t2... tn of equal length n is value <image>. Record [si ≠ ti] is the Iverson notation and represents the following: if si ≠ ti, it is one, otherwise — zero.
Now Xenia wants to calculate the Hamming distance between two long strings a and b. The first string a is the concatenation of n copies of string x, that is, <image>. The second string b is the concatenation of m copies of string y.
Help Xenia, calculate the required Hamming distance, given n, x, m, y.
Input
The first line contains two integers n and m (1 ≤ n, m ≤ 1012). The second line contains a non-empty string x. The third line contains a non-empty string y. Both strings consist of at most 106 lowercase English letters.
It is guaranteed that strings a and b that you obtain from the input have the same length.
Output
Print a single integer — the required Hamming distance.
Please, do not use the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
100 10
a
aaaaaaaaaa
Output
0
Input
1 1
abacaba
abzczzz
Output
4
Input
2 3
rzr
az
Output
5
Note
In the first test case string a is the same as string b and equals 100 letters a. As both strings are equal, the Hamming distance between them is zero.
In the second test case strings a and b differ in their 3-rd, 5-th, 6-th and 7-th characters. Thus, the Hamming distance equals 4.
In the third test case string a is rzrrzr and string b is azazaz. The strings differ in all characters apart for the second one, the Hamming distance between them equals 5.
Submitted Solution:
```
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")
##########################################################
from collections import Counter
import math
#n,m=map(int,input().split())
from collections import Counter
#for i in range(n):
import math
#for _ in range(int(input())):
#n = int(input())
#for _ in range(int(input())):
#n = int(input())
import bisect
'''for _ in range(int(input())):
n=int(input())
n,k=map(int, input().split())
arr = list(map(int, input().split()))'''
#n = int(input())
n,m=map(int, input().split())
s=input()
t=input()
l=len(s)
l1=len(t)
var=l*l1//(math.gcd(l,l1))
xx=s*(var//l)
yy=t*(var//l1)
ans=0
c=0
rem=l*n-var*(l*n//var)
for i in range(min(var,l*n)):
if xx[i]!=yy[i]:
ans+=1
if i==rem-1:
c=ans
print(ans+c)
``` | instruction | 0 | 25,938 | 18 | 51,876 |
No | output | 1 | 25,938 | 18 | 51,877 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
#import sys
#sys.stdin = open('in', 'r')
#n = int(input())
#a = [int(x) for x in input().split()]
n,x,y = map(int, input().split())
import heapq
h = []
d = {}
heapq.heappush(h, (0, n))
r = -1
while r == -1:
xh,nh = heapq.heappop(h)
if nh not in d:
d[nh] = xh
if nh == 1:
r = xh + x
elif nh * x < y:
r = xh + nh*x
else:
if (nh - 1) not in d:
heapq.heappush(h, (xh + x, nh - 1))
if nh & 1 == 0 and (nh // 2) not in d and y < (nh//2)*x:
heapq.heappush(h, (xh + y, nh // 2))
if (nh + 1) not in d:
heapq.heappush(h, (xh + x, nh + 1))
print(r)
``` | instruction | 0 | 26,101 | 18 | 52,202 |
Yes | output | 1 | 26,101 | 18 | 52,203 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
n,x,y=map(int,input().split())
dp = [0.]*(n+1)
for i in range(1,n+1):
dp[i]=min(dp[i-1]+x,dp[(i+1)//2]+y+(x*(i&1)))
print(int(dp[n]))
``` | instruction | 0 | 26,102 | 18 | 52,204 |
Yes | output | 1 | 26,102 | 18 | 52,205 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
import sys
sys.setrecursionlimit(1000000)
def f(dp,x,y,n):
if dp[n]!=-1:
return dp[n]
if n%2==1:
ans=x+min(f(dp,x,y,n-1) ,f(dp,x,y,n+1))
else:
ans=f(dp,x,y,n//2)+min(y,x*n//2)
dp[n]=ans
return ans
n,x,y=map(int,input().split())
dp=[-1 for i in range(n+10)]
dp[1]=x
print(f(dp,x,y,n))
``` | instruction | 0 | 26,103 | 18 | 52,206 |
Yes | output | 1 | 26,103 | 18 | 52,207 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
n, x, y = map(int, input().split(" "))
l = [0.]*(n+1)
for i in range(1,n+1):
l[i] = min(l[i-1]+x, l[(i+1)//2]+y+(x*(i&1)))
print(int(l[n]))
``` | instruction | 0 | 26,104 | 18 | 52,208 |
Yes | output | 1 | 26,104 | 18 | 52,209 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
#start the code from here
def genratestr(n,x,y):
if n==1:
return x
else:
return min(genratestr(n//2,x,y)+y+n%2,genratestr(n-1,x,y)+x)
n,x,y=map(int,input().split())
print(genratestr(n,x,y))
``` | instruction | 0 | 26,105 | 18 | 52,210 |
No | output | 1 | 26,105 | 18 | 52,211 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
import math
def dfs(a,s,v,d):
if s==d:
return 0
v[s][0]=False
temp=math.inf
for x in a[s]:
if v[x[0]][0]:
temp=min(temp,dfs(a,x[0],v,d)+x[1])
else:
temp=min(temp,v[x[0]][1]+x[1])
v[s][1]=temp
return temp
def di(a,s,d):
dp=[math.inf for x in range(d+1)]
v=[True for x in range(d+1)]
dp[1]=a[1][0][1]
c=d
c-=1
r=1
v[r]=False
while c>0:
for x in a[r]:
dp[x[0]]=min(dp[x[0]],dp[r]+x[1])
mi=[math.inf,0]
for x in range(1,len(dp)):
if v[x] and dp[x]<mi[0]:
mi[1]=x
mi[0]=dp[x]
r=mi[1]
v[r]=False
c-=1
#print(dp)
return dp[d]
n,x,y=map(int,input().split())
tar=n
a=[list() for xx in range(n+1)]
a[1].append([2,min(x,y)])
v=[[True,math.inf] for xx in range(n+1)]
#making graph
for i in range(2,len(a)-1):
a[i].append([i+1,x])
if (2*i)<=n:
a[i].append([2*i,y])
a[i+1].append([i,x])
#min path from 1 to 8 cost wise
#co=dfs(a,1,v,n)
#print(co+x if co>0 else 0)
print(di(a,1,n))
#for x in range(len(v)):
# print(x,v[x])
``` | instruction | 0 | 26,106 | 18 | 52,212 |
No | output | 1 | 26,106 | 18 | 52,213 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
n, x, y = map(int, input().split())
f = [None] * (n + 1)
f[0] = 0
f[1] = x
for i in range(2, n + 1):
if i % 2 == 0:
a = f[i // 2] + y
else:
a = f[i // 2] + y + x
f[i] = min(f[i - 1] + x, a)
print(f[n])
``` | instruction | 0 | 26,107 | 18 | 52,214 |
No | output | 1 | 26,107 | 18 | 52,215 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
zscoder wants to generate an input file for some programming competition problem.
His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually generate the input in a text editor.
Initially, the text editor is empty. It takes him x seconds to insert or delete a letter 'a' from the text file and y seconds to copy the contents of the entire text file, and duplicate it.
zscoder wants to find the minimum amount of time needed for him to create the input file of exactly n letters 'a'. Help him to determine the amount of time needed to generate the input.
Input
The only line contains three integers n, x and y (1 ≤ n ≤ 107, 1 ≤ x, y ≤ 109) — the number of letters 'a' in the input file and the parameters from the problem statement.
Output
Print the only integer t — the minimum amount of time needed to generate the input file.
Examples
Input
8 1 1
Output
4
Input
8 1 10
Output
8
Submitted Solution:
```
n, x, y = map(int, input().split())
dp = [0] * (n + 1)
dp[1] = x
for i in range(2, n + 1):
if i % 2 == 0:
dp[i] = min(dp[i - 1] + x, dp[i // 2] + y)
else:
dp[i] = dp[i - 1] + x
print(dp[n])
``` | instruction | 0 | 26,108 | 18 | 52,216 |
No | output | 1 | 26,108 | 18 | 52,217 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The smallest unit of data handled by a computer is called a bit, and the amount of information that represents multiple bits together is called a word. Currently, many computers process one word as 32 bits.
For a computer that represents one word in 32 bits, create a program that outputs the amount of data W given in word units in bit units.
Input
The input is given in the following format.
W
The input consists of one line and is given the amount of data W (0 ≤ W ≤ 100).
Output
Outputs the bitwise value on one line.
Examples
Input
4
Output
128
Input
3
Output
96
Submitted Solution:
```
# coding: utf-8
# Your code here!
W = int(input())
print( 32 * W)
``` | instruction | 0 | 26,422 | 18 | 52,844 |
Yes | output | 1 | 26,422 | 18 | 52,845 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The smallest unit of data handled by a computer is called a bit, and the amount of information that represents multiple bits together is called a word. Currently, many computers process one word as 32 bits.
For a computer that represents one word in 32 bits, create a program that outputs the amount of data W given in word units in bit units.
Input
The input is given in the following format.
W
The input consists of one line and is given the amount of data W (0 ≤ W ≤ 100).
Output
Outputs the bitwise value on one line.
Examples
Input
4
Output
128
Input
3
Output
96
Submitted Solution:
```
W = input()
print(W*32)
``` | instruction | 0 | 26,423 | 18 | 52,846 |
No | output | 1 | 26,423 | 18 | 52,847 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,538 | 18 | 53,076 |
"Correct Solution:
```
buff=input()
print(buff.swapcase())
``` | output | 1 | 26,538 | 18 | 53,077 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,539 | 18 | 53,078 |
"Correct Solution:
```
target=input()
Ans=target.swapcase()
print(Ans)
``` | output | 1 | 26,539 | 18 | 53,079 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,540 | 18 | 53,080 |
"Correct Solution:
```
name = str(input())
ans = str.swapcase(name)
print(ans)
``` | output | 1 | 26,540 | 18 | 53,081 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,541 | 18 | 53,082 |
"Correct Solution:
```
sen=input()
sen=sen.swapcase()
print(sen)
``` | output | 1 | 26,541 | 18 | 53,083 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,542 | 18 | 53,084 |
"Correct Solution:
```
str = input()
str = str.swapcase()
print(str)
``` | output | 1 | 26,542 | 18 | 53,085 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,543 | 18 | 53,086 |
"Correct Solution:
```
x = input()
x = x.swapcase()
print(x)
``` | output | 1 | 26,543 | 18 | 53,087 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,544 | 18 | 53,088 |
"Correct Solution:
```
S = input()
Sc = S.swapcase()
print(Sc)
``` | output | 1 | 26,544 | 18 | 53,089 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy. | instruction | 0 | 26,545 | 18 | 53,090 |
"Correct Solution:
```
str_row = input()
print(str_row.swapcase())
``` | output | 1 | 26,545 | 18 | 53,091 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
w=input()
print(w.swapcase())
``` | instruction | 0 | 26,546 | 18 | 53,092 |
Yes | output | 1 | 26,546 | 18 | 53,093 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
s=input();u=s.upper();l=s.lower()
print(''.join([(u[i],l[i])[s[i]==u[i]]for i in range(len(s))]))
``` | instruction | 0 | 26,547 | 18 | 53,094 |
Yes | output | 1 | 26,547 | 18 | 53,095 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
l = input()
s_l = l.swapcase()
print(s_l)
``` | instruction | 0 | 26,548 | 18 | 53,096 |
Yes | output | 1 | 26,548 | 18 | 53,097 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
A=input()
print(A.swapcase())
``` | instruction | 0 | 26,549 | 18 | 53,098 |
Yes | output | 1 | 26,549 | 18 | 53,099 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
string = input()
for i in range(len(string)):
if string[i].isupper():
string = string.replace(string[i], string[i].lower(), 1)
elif string[i].islower():
string = string.replace(string[i], string[i].upper(), 1)
print(string)
``` | instruction | 0 | 26,550 | 18 | 53,100 |
No | output | 1 | 26,550 | 18 | 53,101 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
s = int(input((" :"))
print(s.swapcase())
``` | instruction | 0 | 26,551 | 18 | 53,102 |
No | output | 1 | 26,551 | 18 | 53,103 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.
Constraints
* The length of the input string < 1200
Input
A string is given in a line.
Output
Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.
Example
Input
fAIR, LATER, OCCASIONALLY CLOUDY.
Output
Fair, later, occasionally cloudy.
Submitted Solution:
```
.lower()
.upper()
``` | instruction | 0 | 26,552 | 18 | 53,104 |
No | output | 1 | 26,552 | 18 | 53,105 |
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