message stringlengths 2 67k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 463 109k | cluster float64 19 19 | __index_level_0__ int64 926 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed with another n empty cards. She piled up the 2n ca... | instruction | 0 | 74,228 | 19 | 148,456 |
Tags: greedy, implementation
Correct Solution:
```
import io, os
#input = io.StringIO(os.read(0, os.fstat(0).st_size).decode()).readline
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
f = True
if 1 in b:
j = b.index(1)
for i in range(n - j):
d = i + 1 - b[j + i]
i... | output | 1 | 74,228 | 19 | 148,457 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed with another n empty cards. She piled up the 2n ca... | instruction | 0 | 74,229 | 19 | 148,458 |
Tags: greedy, implementation
Correct Solution:
```
#!/usr/bin/env python
import sys
n = int(input())
a = [0]; a.extend(list(map(int, input().split())))
b = [0]; b.extend(list(map(int, input().split())))
p = [0 for _ in range(n + 10)]
for i in range(1, n + 1): p[a[i]] = 0
for i in range(1, n + 1): p[b[i]] = i
if p[1]:
... | output | 1 | 74,229 | 19 | 148,459 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed with another n empty cards. She piled up the 2n ca... | instruction | 0 | 74,230 | 19 | 148,460 |
Tags: greedy, implementation
Correct Solution:
```
n=int(input())
a1=list(map(int,input().split()))
a=list(map(int,input().split()))
a=[0]+a
d=[0]*(n+1);
mx=0
for i in range(1,n+1):
d[a[i]]=i
mx=max(d[i]-i+1 for i in range(1,n+1))
br=n-d[1]+1
b=(d[1]!=0)
for i in range(1,n+1):
if(i<=br):
if(d[i]-d[1]==i... | output | 1 | 74,230 | 19 | 148,461 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,231 | 19 | 148,462 |
Yes | output | 1 | 74,231 | 19 | 148,463 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,232 | 19 | 148,464 |
Yes | output | 1 | 74,232 | 19 | 148,465 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,233 | 19 | 148,466 |
Yes | output | 1 | 74,233 | 19 | 148,467 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,234 | 19 | 148,468 |
Yes | output | 1 | 74,234 | 19 | 148,469 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,235 | 19 | 148,470 |
No | output | 1 | 74,235 | 19 | 148,471 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,236 | 19 | 148,472 |
No | output | 1 | 74,236 | 19 | 148,473 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,237 | 19 | 148,474 |
No | output | 1 | 74,237 | 19 | 148,475 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nauuo is a girl who loves playing cards.
One day she was playing cards but found that the cards were mixed with some empty ones.
There are n cards numbered from 1 to n, and they were mixed wit... | instruction | 0 | 74,238 | 19 | 148,476 |
No | output | 1 | 74,238 | 19 | 148,477 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,308 | 19 | 148,616 |
Tags: constructive algorithms, math
Correct Solution:
```
t = 1
while t > 0:
t -= 1
n, s = map(int, input().split())
if s < 2 * n :
print('NO')
else :
print('YES')
print(2 + s - 2 * n, end = ' ')
for i in range(n - 1) :
print(2, end = ' ')
print('')
print('1')
``` | output | 1 | 74,308 | 19 | 148,617 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,309 | 19 | 148,618 |
Tags: constructive algorithms, math
Correct Solution:
```
def calc(N, S):
if N == 1:
if S == 1:
return False
return [S]
if 2 * N <= S:
l = []
first = S - 2 * (N - 1)
l.append(first)
for i in range(N - 1):
l.append(2)
return l
el... | output | 1 | 74,309 | 19 | 148,619 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,310 | 19 | 148,620 |
Tags: constructive algorithms, math
Correct Solution:
```
import sys
import math as mt
input=sys.stdin.buffer.readline
#t=int(input())
#tot=0
t=1
for __ in range(t):
#n=int(input())
n,s=map(int,input().split())
#e=list(map(int,input().split()))
if s>=2*n:
print("YES")
suma=0
for... | output | 1 | 74,310 | 19 | 148,621 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,311 | 19 | 148,622 |
Tags: constructive algorithms, math
Correct Solution:
```
t = 1
for _ in range(t):
#n = int(input())
n,s = list(map(int,input().rstrip().split()))
if( s//2 -1<n-1 ):
print('NO')
else:
print('YES')
if(n==1):
print(s)
print(s//2)
... | output | 1 | 74,311 | 19 | 148,623 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,313 | 19 | 148,626 |
Tags: constructive algorithms, math
Correct Solution:
```
n,s=map(int,input().split())
if s>=2*n:
print("YES")
a=[2]*(n-1)
a.append(s-sum(a))
print(*a)
print(1)
else:
print("NO")
``` | output | 1 | 74,313 | 19 | 148,627 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,314 | 19 | 148,628 |
Tags: constructive algorithms, math
Correct Solution:
```
n, s = map(int, input().split())
if s - n > n - 1:
print('YES')
for _ in range(n - 1):
print(1, end=' ')
print(s - n + 1)
print(n)
else:
print('NO')
``` | output | 1 | 74,314 | 19 | 148,629 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,315 | 19 | 148,630 |
Tags: constructive algorithms, math
Correct Solution:
```
import sys
import atexit
import io
input = sys.stdin.readline
def main():
N, S = [int(i) for i in input().split()]
if S <2*N:
print("NO")
else:
print("Yes")
rem = S-(2*N - 2)
li = [2]*(N-1)
li.append(rem)
... | output | 1 | 74,315 | 19 | 148,631 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all elements in his array should be equal to S. Then P... | instruction | 0 | 74,316 | 19 | 148,632 |
Tags: constructive algorithms, math
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()... | output | 1 | 74,316 | 19 | 148,633 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,317 | 19 | 148,634 |
Yes | output | 1 | 74,317 | 19 | 148,635 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,318 | 19 | 148,636 |
Yes | output | 1 | 74,318 | 19 | 148,637 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,320 | 19 | 148,640 |
Yes | output | 1 | 74,320 | 19 | 148,641 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,321 | 19 | 148,642 |
No | output | 1 | 74,321 | 19 | 148,643 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,322 | 19 | 148,644 |
No | output | 1 | 74,322 | 19 | 148,645 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,323 | 19 | 148,646 |
No | output | 1 | 74,323 | 19 | 148,647 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are competing with each other in a new interesting game as they always do.
At the beginning of the game Petya has to come up with an array of N positive integers. Sum of all ele... | instruction | 0 | 74,324 | 19 | 148,648 |
No | output | 1 | 74,324 | 19 | 148,649 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,341 | 19 | 148,682 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
import sys
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split())... | output | 1 | 74,341 | 19 | 148,683 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,342 | 19 | 148,684 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
import sys
input = sys.stdin.readline
n = int(input())
s = input()
cnt0 = 0
cnt1 = 0
ans = [0] * n
last = [-1] * n
check = [[i+1] for i in range(n)]
check[0] = []
for i in range(n):
if s[i] == '1':
cnt0 = 0
cnt1 +=... | output | 1 | 74,342 | 19 | 148,685 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,343 | 19 | 148,686 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
class bitset():
def __init__(self,n):
self.size=1<<((n+2).bit_length())
self.bit=[0]*(self.size+1)
def append(self,val):
val+=1
id=val
while id<=self.size:
self.bit[id]+=1
... | output | 1 | 74,343 | 19 | 148,687 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,344 | 19 | 148,688 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
from bisect import bisect_left as bl
from bisect import bisect_right as br
from heapq import heappush,heappop
import math
from collections import *
from functools import reduce,cmp_to_key,lru_cache
import io, os
input = io.BytesIO(os.... | output | 1 | 74,344 | 19 | 148,689 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,345 | 19 | 148,690 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
from bisect import bisect_left as bl
from bisect import bisect_right as br
from heapq import heappush,heappop,heapify
import math
from collections import *
from functools import reduce,cmp_to_key
import sys
input = sys.stdin.readline
... | output | 1 | 74,345 | 19 | 148,691 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,346 | 19 | 148,692 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
from bisect import bisect_left as bl
from bisect import bisect_right as br
from heapq import heappush,heappop
import math
from collections import *
from functools import reduce,cmp_to_key,lru_cache
import io, os
input = io.BytesIO(os.... | output | 1 | 74,346 | 19 | 148,693 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,347 | 19 | 148,694 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
class BalancingTree:
def __init__(self, n):
self.N = n
self.root = self.node(1<<n, 1<<n)
def append(self, v):
v += 1
nd = self.root
while True:
if v == nd.value:
... | output | 1 | 74,347 | 19 | 148,695 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has won x rounds in a row. For example, if Bob won f... | instruction | 0 | 74,348 | 19 | 148,696 |
Tags: binary search, data structures, dp, greedy, two pointers
Correct Solution:
```
n=int(input())
s=input()
N=n
N0 = 2**(N-1).bit_length()
data = [n]*(2*N0)
INF = n
# 区間[l, r+1)の値をvに書き換える
# vは(t, value)という値にする (新しい値ほどtは大きくなる)
def update(l, r, v):
L = l + N0; R = r + N0
while L < R:
if R & 1:
... | output | 1 | 74,348 | 19 | 148,697 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has w... | instruction | 0 | 74,349 | 19 | 148,698 |
Yes | output | 1 | 74,349 | 19 | 148,699 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has w... | instruction | 0 | 74,350 | 19 | 148,700 |
No | output | 1 | 74,350 | 19 | 148,701 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has w... | instruction | 0 | 74,351 | 19 | 148,702 |
No | output | 1 | 74,351 | 19 | 148,703 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Alice and Bob play a game. The game consists of several sets, and each set consists of several rounds. Each round is won either by Alice or by Bob, and the set ends when one of the players has w... | instruction | 0 | 74,352 | 19 | 148,704 |
No | output | 1 | 74,352 | 19 | 148,705 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,476 | 19 | 148,952 |
Tags: implementation
Correct Solution:
```
c = []
a = []
c = input().split()
b = []
b = input().split()
n = int(c[0])
s = int(c[1])
t = int(c[2])
for i in range(n):
ele = int(b[i])
a.append(ele)
if s == t:
print(0)
exit()
j = 0
v = []
count = 0
v.append(int(a[s-1]))
for j in range(n-1):
v.append(int... | output | 1 | 74,476 | 19 | 148,953 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,477 | 19 | 148,954 |
Tags: implementation
Correct Solution:
```
import sys
import math
n, s, t = [int(x) for x in (sys.stdin.readline()).split()]
p = [int(x) for x in (sys.stdin.readline()).split()]
res = 0
k = s
while(s != t):
s = p[s - 1]
res += 1
if(k == s):
print(-1)
exit()
print(res)
``` | output | 1 | 74,477 | 19 | 148,955 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,478 | 19 | 148,956 |
Tags: implementation
Correct Solution:
```
n,s,t=map(int,input().split())
l=list(map(int,input().split()))
step=0
while(s!=t and l[s-1]!=0):
tmp=l[s-1]
l[s-1]=0
s=tmp
step+=1
if(s==t):
print(step)
else:
print(-1)
``` | output | 1 | 74,478 | 19 | 148,957 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,479 | 19 | 148,958 |
Tags: implementation
Correct Solution:
```
N,s,t=map(int,input().split())
A=list(map(int,input().split()))
s-=1
t-=1
ans=0
Taken=[False]*(N+1)
while(Taken[s]==False and s!=t):
Taken[s]=True
s=A[s]-1
ans+=1
if(s==t):
print(ans)
else:
print(-1)
``` | output | 1 | 74,479 | 19 | 148,959 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,480 | 19 | 148,960 |
Tags: implementation
Correct Solution:
```
def arr_inp():
return [int(x) for x in stdin.readline().split()]
from sys import stdin
from collections import defaultdict
n, s, t = arr_inp()
p, mem = arr_inp(), defaultdict(int)
p.insert(0, 0)
ans, root = 0, s
while (root != t):
if mem[root]:
exit(print(-1... | output | 1 | 74,480 | 19 | 148,961 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,481 | 19 | 148,962 |
Tags: implementation
Correct Solution:
```
n,s,t = [int(x) for x in input().split()]
p = [int(x) for x in input().split()]
if s != t :
i = 0
m = p[s-1]
flag = 0
while i<n:
if t == m :
flag = 1
break
else :
m = p[m-1]
i = i+1
if flag == ... | output | 1 | 74,481 | 19 | 148,963 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,482 | 19 | 148,964 |
Tags: implementation
Correct Solution:
```
def cs(f,l,v):
s=set()
t,c=f,0
while 1:
if t==l:
return c
t=v[t]
if t in s:
return -1
s.add(t)
c+=1
n,f,l=[int (c)-1 for c in input().split()]
v=[int (c)-1 for c in input().split()]
print(cs(f,l,v))
``` | output | 1 | 74,482 | 19 | 148,965 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the positions are indexed but the glasses are not.
Firs... | instruction | 0 | 74,483 | 19 | 148,966 |
Tags: implementation
Correct Solution:
```
def mi():
return map(int, input().split(' '))
n, s, t = mi()
li = list(mi())
if s==t:
print(0)
exit()
temp = li[s-1]
count = 1
while(temp!= t):
temp = li[temp-1]
#print(temp)
count+=1
if temp == s:
print(-1)
exit()
print(count)
`... | output | 1 | 74,483 | 19 | 148,967 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the posit... | instruction | 0 | 74,484 | 19 | 148,968 |
Yes | output | 1 | 74,484 | 19 | 148,969 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the posit... | instruction | 0 | 74,485 | 19 | 148,970 |
Yes | output | 1 | 74,485 | 19 | 148,971 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the posit... | instruction | 0 | 74,486 | 19 | 148,972 |
Yes | output | 1 | 74,486 | 19 | 148,973 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya and Vasya are playing a game. Petya's got n non-transparent glasses, standing in a row. The glasses' positions are indexed with integers from 1 to n from left to right. Note that the posit... | instruction | 0 | 74,487 | 19 | 148,974 |
Yes | output | 1 | 74,487 | 19 | 148,975 |
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