input stringlengths 1 8.57k | output stringlengths 2 5.65k |
|---|---|
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The name of one small but proud corporation consists of n lowercase English letters. The Corporation has decided to try rebranding — an active marketing strategy, that includes ... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke loves "paper cutting": he cuts out characters from a newspaper headline and rearranges them to form another string.
He will receive a headline which contains one of the s... | Yes |
### Instruction: Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Equation Identity English text is not available in this practice contest. In logical operations, only two types of values, T and F, are handled. Let "-" be a unary operator (a sy... | No |
### Instruction: Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Equation Identity English text is not available in this practice contest. In logical operations, only two types of values, T and F, are handled. Let "-" be a unary operator (a sy... | No |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character of S and replace it with a different character.
Constrai... | "Correct Solution:
```
s=input()
t=input()
ans=0
for i,j in zip(s,t):
if(i!=j):ans+=1
print(ans)
``` |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given are strings S and T. Consider changing S to T by repeating the operation below. Find the minimum number of operations required to do so.
Operation: Choose one character o... | No |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Meikyokan University is very famous for its research and education in the area of computer science. This university has a computer center that has advanced and secure computing facilities including supercomputers and many personal co... | "Correct Solution:
```
from collections import Counter
from itertools import permutations
import sys
readline = sys.stdin.readline
write = sys.stdout.write
def solve():
N = int(readline())
if N == 0:
return False
def dist(a, b):
LA = len(a); LB = len(b)
dp = [[10**18]*(LB+1) for i i... |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
import sys
alphabet = "abcdefghijklmnopqrstuvwxyz"
string = sys.stdin.read()
for s in alphabet:
print(s+" : "+str(string.lower().count(s)))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
import sys
s=sys.stdin.read().lower()
for i in range(26):
s.count(chr(97+i))
print(chr(97+i)+" : "+str(s.count(chr(97+i))))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
sm = ""
while True:
try:
sm += input().lower()
except:
break
for i in 'abcdefghijklmnopqrstuvwxyz':
print('{} : {}'.format(i, sm.count(i)))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
s = ""
try:
while True:
s += input().lower()
except:
pass
for i in range(ord("a"),ord("z")+1):
print(chr(i)+" : "+str(s.count(chr(i))))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
import sys
cnts = []
alpha = "abcdefghijklmnopqrstuvwxyz"
for line in sys.stdin:
for c in list(line.lower()):
cnts.append(c)
for a in alpha:
print("{} : {}".format(a,cnts.count(a)))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
import sys
char = "abcdefghijklmnopqrstuvwxyz"
inp = sys.stdin.read()
for char_tmp in char:
print(char_tmp + ' : ' + str(inp.lower().count(char_tmp)))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
alpha = 'abcdefghijklmnopqrstuvwxyz'
text = ''
while True:
try:
text += input().lower()
except EOFError:
break
for a in alpha:
print('{} : {}'.format(a, text.count(a)))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
Input
A sentence in English is given in several lines.
... | "Correct Solution:
```
s=""
while True:
try:
s += input().lower()
except:
break
for c in 'abcdefghijklmnopqrstuvwxyz':
print(c,':',s.count(c))
``` |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which counts and reports the number of each alphabetical letter. Ignore the case of characters.
Constraints
* The number of characters in the sentence < 1200
... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their name... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Haiku is a genre of Japanese traditional poetry.
A haiku poem consists of 17 syllables split into three phrases, containing 5, 7 and 5 syllables correspondingly (the first phra... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let us call a non-empty sequence of lowercase English letters a word. Prefix of a word x is a word y that can be obtained from x by removing zero or more last letters of x.
Let... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let us call a non-empty sequence of lowercase English letters a word. Prefix of a word x is a word y that can be obtained from x by removing zero or more last letters of x.
Let... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
We have a string S of length N consisting of uppercase English letters.
How many times does `ABC` occur in S as contiguous subsequences (see Sample Inputs and Outputs)?
Constr... | No |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
print('ATCG'['TAGC'.find(input())])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
A = {'A':'T','C':'G','G':'C','T':'A'}
print(A[input()])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
base = 'ATAGCG'
print(base[base.index(input())+1])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
d = {'A':'T','T':'A','C':'G','G':'C'}
b=input()
print(d[b])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
b=input()
dict={"A":"T","C":"G","G":"C","T":"A"}
print(dict[b])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
b=['A','T','A','C','G','C']
print(b[b.index(input())+1])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
print(input().translate(str.maketrans('ATGC', 'TACG')))
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `G` or `T`. Write a program that prints the letter repres... | "Correct Solution:
```
dna={"A":"T", "T":"A", "C":"G", "G":"C"}
print(dna[input()])
``` |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
On the Planet AtCoder, there are four types of bases: `A`, `C`, `G` and `T`. `A` bonds with `T`, and `C` bonds with `G`.
You are given a letter b as input, which is `A`, `C`, `... | No |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
#!/usr/bin/env python3
import re
s = input()
s = re.sub(r'erase(r|)',"", s)
s = re.sub(r'dream(er|)',"", s)
print('YNEOS'[s!=""::2])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
s = input()
if re.match("(dream|dreamer|erase|eraser)+$", s):
print("YES")
else:
print("NO")
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
S = input()
# 文頭から行末まで
# +は直前のものが連続するの意
if re.match('^(dream|dreamer|erase|eraser)+$', S):
print('YES')
else:
print('NO')
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
s=input()
if ""==s.replace("eraser","").replace("erase","").replace("dreamer","").replace("dream",""):
print("YES")
else:
print("NO")
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
S = str(input())
print("YES" if re.match("^(dream|dreamer|erase|eraser)+$", S) else "NO")
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
s = input()
if re.match("(dream|dreamer|erase|eraser)*$", s):
print("YES")
else:
print("NO")
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
print('NYOE S'[bool(re.match('^(dream|dreamer|erase|eraser)+$',input()))::2])
``` |
### Instruction:
Provide a correct Python 3 solution for this coding contest problem.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the following operation an arbitrary number of times:
* Append one... | "Correct Solution:
```
import re
print("YES" if re.fullmatch("(erase(r)?|dream(er)?)+", input())else "NO")
``` |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | Yes |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | No |
### Instruction: Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followin... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a string S consisting of lowercase English letters. Another string T is initially empty. Determine whether it is possible to obtain S = T by performing the followi... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Mahmoud and Ehab solved Dr. Evil's questions so he gave them the password of the door of the evil land. When they tried to open the door using it, the door gave them a final que... | No |
### Instruction:
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Mahmoud and Ehab solved Dr. Evil's questions so he gave them the password of the door of the evil land. When they tried to open the door using it, the door gave them a final que... | No |
### Instruction:
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... | "Correct Solution:
```
N = int(input())
S = [input()[0] for i in range(N)]
M = S.count("M")
A = S.count("A")
R = S.count("R")
C = S.count("C")
H = S.count("H")
print(M * (A * (R + C + H) + R * (C + H) + C * H) + A * (R * (C + H) + C * H) + R * C * H)
``` |
### Instruction:
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... | "Correct Solution:
```
N= int(input())
S = [input() for _ in range(N)]
cnt = {}
for s in S:
cnt[s[0]] = cnt.get(s[0], 0) +1
n = [cnt.get(x,0) for x in ['M','A','R','C','H']]
a = sum(n) **3 - 3*sum([v**2 for v in n])*sum(n) + 2*sum([v**3 for v in n])
print(a//6)
``` |
### Instruction:
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... | "Correct Solution:
```
import itertools
N=int(input())
l=[0]*5
m=list('MARCH')
for i in range(N):
S=input()
if S[0] in m:
l[m.index(S[0])]+=1
ans=0
for i in list(itertools.combinations(l,3)):
m=1
for j in i:
m*=j
ans+=m
print(ans)
``` |
### Instruction:
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... | "Correct Solution:
```
N = int(input())
S = [input() for i in range(N)]
from collections import Counter
ctr = Counter([s[0] for s in S])
ans = 0
import itertools
for ptn in itertools.combinations('MARCH',3):
a,b,c = ptn
ans += ctr[a] * ctr[b] * ctr[c]
print(ans)
``` |
### Instruction:
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... | "Correct Solution:
```
n=int(input())
s=[input()[0] for _ in [0]*n]
l=['M','A','R','C','H']
L=[s.count(x) for x in l]
a=0
for i in range(3):
for j in range(i+1,4):
for k in range(j+1,5):
a+=L[i]*L[j]*L[k]
print(a)
``` |
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