message stringlengths 2 23.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 97 109k | cluster float64 0 0 | __index_level_0__ int64 194 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string. To type a string, you have to start with an em... | instruction | 0 | 25,725 | 0 | 51,450 |
Tags: data structures, dfs and similar, dp
Correct Solution:
```
import io
import os
DEBUG = False
def dfs(trie, root, preorder=None, postorder=None):
stack = [root]
seen = set()
while stack:
nodeId = stack.pop()
if nodeId not in seen:
if preorder:
preorder(nod... | output | 1 | 25,725 | 0 | 51,451 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string.... | instruction | 0 | 25,726 | 0 | 51,452 |
No | output | 1 | 25,726 | 0 | 51,453 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string.... | instruction | 0 | 25,727 | 0 | 51,454 |
No | output | 1 | 25,727 | 0 | 51,455 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string.... | instruction | 0 | 25,728 | 0 | 51,456 |
No | output | 1 | 25,728 | 0 | 51,457 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a set of strings S. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string.... | instruction | 0 | 25,729 | 0 | 51,458 |
No | output | 1 | 25,729 | 0 | 51,459 |
Provide a correct Python 3 solution for this coding contest problem.
Problem
Given the strings $ s $, $ t $.
First, let the string set $ A = $ {$ s $}, $ B = \ phi $.
At this time, I want to perform the following operations as much as possible.
operation
step1
Perform the following processing for all $ u ∊ A $.
1... | instruction | 0 | 26,520 | 0 | 53,040 |
"Correct Solution:
```
s = input()
t = " " + input()
line = [1]
next = 1
t_size = len(t)
flag = False
for i in s:
if t[next] == i:
line[0] += 1
next = line[0]
line += [0]
j = 0
while line[j] == t_size:
line[j] = 0
next = line[j + 1] = line[j + 1] + 1
... | output | 1 | 26,520 | 0 | 53,041 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Problem
Given the strings $ s $, $ t $.
First, let the string set $ A = $ {$ s $}, $ B = \ phi $.
At this time, I want to perform the following operations as much as possible.
operation
step1... | instruction | 0 | 26,521 | 0 | 53,042 |
No | output | 1 | 26,521 | 0 | 53,043 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Consider some set of distinct characters A and some string S, consisting of exactly n characters, where each character is present in A.
You are given an array of m integers b (b_1 < b_2 < ... < b_m).
You are allowed to perform the followi... | instruction | 0 | 26,563 | 0 | 53,126 |
Tags: combinatorics, strings
Correct Solution:
```
n,m,a=map(int,input().split())
b=list(map(int,input().split()))
for i in range(m):
if i==0:
diffs=[b[0]]
else:
diffs.append(b[i]-b[i-1])
powers=[a%998244353]
for i in range(30):
powers.append(powers[-1]**2%998244353)
def power(x,y,binpowers)... | output | 1 | 26,563 | 0 | 53,127 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider some set of distinct characters A and some string S, consisting of exactly n characters, where each character is present in A.
You are given an array of m integers b (b_1 < b_2 < ... <... | instruction | 0 | 26,564 | 0 | 53,128 |
No | output | 1 | 26,564 | 0 | 53,129 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Consider some set of distinct characters A and some string S, consisting of exactly n characters, where each character is present in A.
You are given an array of m integers b (b_1 < b_2 < ... <... | instruction | 0 | 26,565 | 0 | 53,130 |
No | output | 1 | 26,565 | 0 | 53,131 |
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 only of first 20 lowercase Latin letters ('a', 'b', ..., 't').
Recall that the substring s[l; r] of the string s is the string s_l s_{l + 1} ... s_r. For exa... | instruction | 0 | 26,653 | 0 | 53,306 |
No | output | 1 | 26,653 | 0 | 53,307 |
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 only of first 20 lowercase Latin letters ('a', 'b', ..., 't').
Recall that the substring s[l; r] of the string s is the string s_l s_{l + 1} ... s_r. For exa... | instruction | 0 | 26,654 | 0 | 53,308 |
No | output | 1 | 26,654 | 0 | 53,309 |
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 only of first 20 lowercase Latin letters ('a', 'b', ..., 't').
Recall that the substring s[l; r] of the string s is the string s_l s_{l + 1} ... s_r. For exa... | instruction | 0 | 26,655 | 0 | 53,310 |
No | output | 1 | 26,655 | 0 | 53,311 |
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 only of first 20 lowercase Latin letters ('a', 'b', ..., 't').
Recall that the substring s[l; r] of the string s is the string s_l s_{l + 1} ... s_r. For exa... | instruction | 0 | 26,656 | 0 | 53,312 |
No | output | 1 | 26,656 | 0 | 53,313 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,790 | 0 | 53,580 |
Tags: greedy, implementation, strings
Correct Solution:
```
t = int(input())
for i in range(0,t):
s = list(input())
s = [ord(s[j])-96 for j in range(0,len(s))]
# s.sort()
n = len(s)
if 1 not in s:
print("NO")
continue
l=s.index(1)-1
r = s.index(1)+1
k=2
f=1
# print(s)
while(... | output | 1 | 26,790 | 0 | 53,581 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,791 | 0 | 53,582 |
Tags: greedy, implementation, strings
Correct Solution:
```
from collections import defaultdict
for _ in range(int(input())):
x=input()
arr=[0]*123
c=len(x)
aa=0
for i in range(c):
arr[ord(x[i])]+=1
if x[i]=='a':
aa=i
flag=0
for j in range(97,97+c):
... | output | 1 | 26,791 | 0 | 53,583 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,792 | 0 | 53,584 |
Tags: greedy, implementation, strings
Correct Solution:
```
# print(ord('z'))
for _ in range(int(input())):
s = input()
A_idx = -1
mx = 0
mp = {}
dup = False
for i in range(len(s)):
if s[i] == 'a':
A_idx = i
if s[i] not in mp:
mp[s[i]] = 1
else:
... | output | 1 | 26,792 | 0 | 53,585 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,793 | 0 | 53,586 |
Tags: greedy, implementation, strings
Correct Solution:
```
#DaRk DeveLopeR
import sys
#taking input as string
input = lambda: sys.stdin.readline().rstrip("\r\n")
inp = lambda: list(map(int,sys.stdin.readline().rstrip("\r\n").split()))
mod = 10**9+7; Mod = 998244353; INF = float('inf')
#_____________________________... | output | 1 | 26,793 | 0 | 53,587 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,794 | 0 | 53,588 |
Tags: greedy, implementation, strings
Correct Solution:
```
import string
lett = string.ascii_lowercase
def isAlf(ss):
start = ss.find('a')
if start == -1:
return False
n = len(ss)
if n == 1:
return True
l = start-1
r = start+1
ll = 1
for i in range(1, 26):
if ... | output | 1 | 26,794 | 0 | 53,589 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,795 | 0 | 53,590 |
Tags: greedy, implementation, strings
Correct Solution:
```
t = int(input())
for _ in range(t):
dummy = input()
l = list(dummy)
start = 0
end = len(l) - 1
count = len(l)
# print(ord(l[0]))
while start <= end and count:
if ord(l[start] ) == (count + 96):
start+=1
e... | output | 1 | 26,795 | 0 | 53,591 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,796 | 0 | 53,592 |
Tags: greedy, implementation, strings
Correct Solution:
```
t = int(input())
for i in range(t):
text = input()
length = len(text)
ans = True
for j in range(length):
if text[0] == chr(97 + length - j - 1):
text = text[1:]
elif text[-1] == chr(97 + length - j - 1):
... | output | 1 | 26,796 | 0 | 53,593 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
* then perform the next step n times;
* at th... | instruction | 0 | 26,797 | 0 | 53,594 |
Tags: greedy, implementation, strings
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
from types import GeneratorType
from collections import defaultdict
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer ... | output | 1 | 26,797 | 0 | 53,595 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,798 | 0 | 53,596 |
Yes | output | 1 | 26,798 | 0 | 53,597 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,799 | 0 | 53,598 |
Yes | output | 1 | 26,799 | 0 | 53,599 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,800 | 0 | 53,600 |
Yes | output | 1 | 26,800 | 0 | 53,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,801 | 0 | 53,602 |
Yes | output | 1 | 26,801 | 0 | 53,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,802 | 0 | 53,604 |
No | output | 1 | 26,802 | 0 | 53,605 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,803 | 0 | 53,606 |
No | output | 1 | 26,803 | 0 | 53,607 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,804 | 0 | 53,608 |
No | output | 1 | 26,804 | 0 | 53,609 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string s of length n (1 ≤ n ≤ 26) is called alphabetical if it can be obtained using the following algorithm:
* first, write an empty string to s (i.e. perform the assignment s := "");
*... | instruction | 0 | 26,805 | 0 | 53,610 |
No | output | 1 | 26,805 | 0 | 53,611 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of string a, bi is the i-th symbol of string b. For exa... | instruction | 0 | 26,806 | 0 | 53,612 |
Tags: constructive algorithms, greedy, math, matrices
Correct Solution:
```
def get_input():
a, b, d = map(int, input().split())
c, e = map(int, input().split())
f = int(input())
return [a, b, c, d, e, f]
def check_condition(a, b, c, d, e, f):
condition1 = (a + b + c) % 2 == 0
conditi... | output | 1 | 26,806 | 0 | 53,613 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of string a, bi is the i-th symbol of string b. For exa... | instruction | 0 | 26,807 | 0 | 53,614 |
Tags: constructive algorithms, greedy, math, matrices
Correct Solution:
```
def get_input():
a, b, d = map(int, input().split())
c, e = map(int, input().split())
f = int(input())
return [a, b, c, d, e, f]
def check_condition(a, b, c, d, e, f):
condition1 = (a + b + c) % 2 == 0
condition2 = (d ... | output | 1 | 26,807 | 0 | 53,615 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of string a, bi is the i-th symbol of string b. For exa... | instruction | 0 | 26,808 | 0 | 53,616 |
Tags: constructive algorithms, greedy, math, matrices
Correct Solution:
```
h = [[0 in range(10)] for j in range(10)]
for i in range(1, 4):
h[i] = [0 for j in range(i + 1)] + list(map(int, input().split()))
#for i in range(1, 4):
# print(" ".join(map(str, h[i][1:5])))
if (h[1][2] + h[1][3] < h[2][3] or (h[1][2] ... | output | 1 | 26,808 | 0 | 53,617 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of strin... | instruction | 0 | 26,809 | 0 | 53,618 |
No | output | 1 | 26,809 | 0 | 53,619 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of strin... | instruction | 0 | 26,810 | 0 | 53,620 |
No | output | 1 | 26,810 | 0 | 53,621 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Hamming distance between strings a and b of equal length (denoted by h(a, b)) is equal to the number of distinct integers i (1 ≤ i ≤ |a|), such that ai ≠ bi, where ai is the i-th symbol of strin... | instruction | 0 | 26,811 | 0 | 53,622 |
No | output | 1 | 26,811 | 0 | 53,623 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,584 | 0 | 55,168 |
Tags: games
Correct Solution:
```
t=int(input())
for _ in range(t):
s=input()
cnt0=s.count("0")
cnt1=s.count("1")
ans=min(cnt0,cnt1)
if ans%2==0:
print("NET")
else:
print("DA")
``` | output | 1 | 27,584 | 0 | 55,169 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,585 | 0 | 55,170 |
Tags: games
Correct Solution:
```
z=int(input())
for h in range(z):
a=list(map(int,input()))
cnt=0
while True:
flag=0
for i in range(len(a)-1):
if len(a)>1:
if (a[i]==0 and a[i+1]) or (a[i]==1 and a[i+1]==0):
cnt+=1
flag=1
... | output | 1 | 27,585 | 0 | 55,171 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,586 | 0 | 55,172 |
Tags: games
Correct Solution:
```
def saurabh(B):
A=len(B)
x=[B[0]]
count=0
for i in range(1,len(B)):
if x==[]:
x.append(B[i])
elif x[-1]!=B[i]:
x.pop()
count+=1
else:
x.append(B[i])
if count%2==1:
return 'DA'
else:
... | output | 1 | 27,586 | 0 | 55,173 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,587 | 0 | 55,174 |
Tags: games
Correct Solution:
```
t=int(input())
a=[]
for i in range(t):
n=input()
s=0
g=0
r=0
b=0
h=len(n)//2
for i in range(len(n)//2):
g=n.count('01')
b+=g
n=n.replace('01','')
r=n.count('10')
b+=r
n=n.replace('10','')
if len(n)==2 and n... | output | 1 | 27,587 | 0 | 55,175 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,588 | 0 | 55,176 |
Tags: games
Correct Solution:
```
t = int(input())
for _ in range(t):
s = [int(i) for i in input()]
ct0 = 0
ct1 = 0
for i in s:
if i == 1:
ct1 += 1
else:
ct0 += 1
ct = min(ct0, ct1)
if ct%2:
print("DA")
else:
print("N... | output | 1 | 27,588 | 0 | 55,177 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,589 | 0 | 55,178 |
Tags: games
Correct Solution:
```
from typing import AnyStr
t=int(input())
answer=[]
while t>0:
s=input()
c0=0
c1=0
for i in s:
if i=='0':
c0+=1
else:
c1+=1
if min(c0,c1)%2==1:
answer.append('DA')
else:
answer.append('NET')
t-=1
prin... | output | 1 | 27,589 | 0 | 55,179 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,590 | 0 | 55,180 |
Tags: games
Correct Solution:
```
t = int(input())
for i in range(t):
s = input()
print('DA' if min(s.count('0'), s.count('1')) % 2 == 1 else 'NET')
``` | output | 1 | 27,590 | 0 | 55,181 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,591 | 0 | 55,182 |
Tags: games
Correct Solution:
```
t=int(input())
def alice(st):
j=1
while True:
if "10" in st:
a=st.index("10")
st=st[:a]+st[a+2:]
j+=1
elif "01" in st:
a=st.index("01")
st=st[:a]+st[a+2:]
j+=1
else:
break
if j%2==0:
return "DA"
else:
return "NET"
li=[]
for i in range(t):
li=l... | output | 1 | 27,591 | 0 | 55,183 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the second move, Alice makes the third one, and so o... | instruction | 0 | 27,592 | 0 | 55,184 |
Tags: games
Correct Solution:
```
from sys import stdin, stdout
from collections import Counter, defaultdict
from itertools import permutations, combinations
raw_input = stdin.readline
pr = stdout.write
mod=10**9+7
def ni():
return int(raw_input())
def li():
return map(int,raw_input().split())
def pn(n):
... | output | 1 | 27,592 | 0 | 55,185 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alica and Bob are playing a game.
Initially they have a binary string s consisting of only characters 0 and 1.
Alice and Bob make alternating moves: Alice makes the first move, Bob makes the s... | instruction | 0 | 27,598 | 0 | 55,196 |
No | output | 1 | 27,598 | 0 | 55,197 |
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 n lowercase Latin letters.
Let's denote k-substring of s as a string subsk = sksk + 1..sn + 1 - k. Obviously, subs1 = s, and there are exactly <image> suc... | instruction | 0 | 28,015 | 0 | 56,030 |
No | output | 1 | 28,015 | 0 | 56,031 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string $t$ and a set $S$ of $N$ different strings. You need to separate $t$ such that each part is included in $S$.
For example, the following 4 separation methods satisfy the condition when $t = abab$ and $S = \\{a, ab, b\\}$.
* $a... | instruction | 0 | 28,219 | 0 | 56,438 |
"Correct Solution:
```
from collections import defaultdict
import sys
def solve():
readline = sys.stdin.readline
write = sys.stdout.write
mod = 10**9 + 9
base = 37
ca = ord('a')
N = int(readline())
SS = [readline().strip() for i in range(N)]
SS.sort(key = len)
T = readline().strip(... | output | 1 | 28,219 | 0 | 56,439 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Recently, the Fair Nut has written k strings of length n, consisting of letters "a" and "b". He calculated c — the number of strings that are prefixes of at least one of the written strings. Every string was counted only one time.
Then, he ... | instruction | 0 | 28,294 | 0 | 56,588 |
Tags: greedy, strings
Correct Solution:
```
n,k=map(int,input().split())
s=input()
t=input()
res,tp=0,1
for i in range(n):
tp*=2
if s[i]=='b':
tp-=1
if t[i]=='a':
tp-=1
res+=min(tp,k)
tp=min(tp,1e9)
print(res)
``` | output | 1 | 28,294 | 0 | 56,589 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Recently, the Fair Nut has written k strings of length n, consisting of letters "a" and "b". He calculated c — the number of strings that are prefixes of at least one of the written strings. Every string was counted only one time.
Then, he ... | instruction | 0 | 28,295 | 0 | 56,590 |
Tags: greedy, strings
Correct Solution:
```
# by the authority of GOD author: manhar singh sachdev #
import os,sys
from io import BytesIO, IOBase
def main():
n,k = map(int,input().split())
s = input().strip()
t = input().strip()
diff,ans = 0,0
for i in range(n):
if diff+1 < k:
... | output | 1 | 28,295 | 0 | 56,591 |
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