message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike loves looking for the second maximum element in the sequence. The second maximum element in the sequence of distinct numbers x1, x2, ..., xk (k > 1) is such maximum element xj, that the fol... | instruction | 0 | 63,436 | 12 | 126,872 |
No | output | 1 | 63,436 | 12 | 126,873 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike loves looking for the second maximum element in the sequence. The second maximum element in the sequence of distinct numbers x1, x2, ..., xk (k > 1) is such maximum element xj, that the fol... | instruction | 0 | 63,437 | 12 | 126,874 |
No | output | 1 | 63,437 | 12 | 126,875 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike loves looking for the second maximum element in the sequence. The second maximum element in the sequence of distinct numbers x1, x2, ..., xk (k > 1) is such maximum element xj, that the fol... | instruction | 0 | 63,438 | 12 | 126,876 |
No | output | 1 | 63,438 | 12 | 126,877 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike loves looking for the second maximum element in the sequence. The second maximum element in the sequence of distinct numbers x1, x2, ..., xk (k > 1) is such maximum element xj, that the fol... | instruction | 0 | 63,439 | 12 | 126,878 |
No | output | 1 | 63,439 | 12 | 126,879 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,440 | 12 | 126,880 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
n=int(input())
a,b=[],[]
c=[]
if(n%2!=0):
for i in range(n):
a+=[i]
b+=[i]
c.append((a[i]+b[i])%n)
print(*a)
print(*b)
print(*c)
else:
print(-1)
``` | output | 1 | 63,440 | 12 | 126,881 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,441 | 12 | 126,882 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
n = int(input())
if n % 2 == 0:
print(-1)
else:
print(*list(range(n)))
print(*list(range(n)))
print(*[i*2 % n for i in range(n)])
``` | output | 1 | 63,441 | 12 | 126,883 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,442 | 12 | 126,884 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
n=int(input())
a=[i for i in range(n)]
b=[i for i in range(n)]
c=[]
i=0
if(n%2==0):
print(-1)
else:
i=0
while(i<n):
c.append(i)
i+=2
i=1
while(i<n):
c.append(i)
i+=2
for i in range(n):
... | output | 1 | 63,442 | 12 | 126,885 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,443 | 12 | 126,886 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
n=int(input());
if n%2:
print(*[int(i) for i in range(0,n)])
print(*[int(j) for j in range(0,n)])
print(*[int((2*i)%n) for i in range(0,n)])
else: print(-1)
``` | output | 1 | 63,443 | 12 | 126,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,444 | 12 | 126,888 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
n = int(input())
if n % 2 == 0:
print(-1)
else:
print(" ".join(map(str, range(n))))
print(" ".join(map(str, range(n))))
print(" ".join(map(str, [2*x % n for x in range(n)])))
``` | output | 1 | 63,444 | 12 | 126,889 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,445 | 12 | 126,890 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
if __name__ == '__main__':
n = int(input())
if n == 1:
print(0)
print(0)
print(0)
elif n % 2:
perm1, perm2 = [], []
for i in range(n//2 + 1, -1, -1):
perm1.append(i)
for i... | output | 1 | 63,445 | 12 | 126,891 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,446 | 12 | 126,892 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
# *****DO NOT COPY*****
# F
# U ___ ___ ___ ___ ___ ___ _____
# C / /\ ___ / /\ ___ /__/\ / /\ / /\ ... | output | 1 | 63,446 | 12 | 126,893 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation of length 3 while both [0, 2, 2] and [1, 2, 3] ... | instruction | 0 | 63,447 | 12 | 126,894 |
Tags: constructive algorithms, implementation, math
Correct Solution:
```
import os,io
from sys import stdout
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
import collections
def binomial_coefficient(n, k):
if 0 <= k <= n:
ntok = 1
ktok = 1
for t in range(1, min(k, n - k) + 1)... | output | 1 | 63,447 | 12 | 126,895 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,448 | 12 | 126,896 |
Yes | output | 1 | 63,448 | 12 | 126,897 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,449 | 12 | 126,898 |
Yes | output | 1 | 63,449 | 12 | 126,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,450 | 12 | 126,900 |
Yes | output | 1 | 63,450 | 12 | 126,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,451 | 12 | 126,902 |
Yes | output | 1 | 63,451 | 12 | 126,903 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,452 | 12 | 126,904 |
No | output | 1 | 63,452 | 12 | 126,905 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,453 | 12 | 126,906 |
No | output | 1 | 63,453 | 12 | 126,907 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,454 | 12 | 126,908 |
No | output | 1 | 63,454 | 12 | 126,909 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bike is interested in permutations. A permutation of length n is an integer sequence such that each integer from 0 to (n - 1) appears exactly once in it. For example, [0, 2, 1] is a permutation ... | instruction | 0 | 63,455 | 12 | 126,910 |
No | output | 1 | 63,455 | 12 | 126,911 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,456 | 12 | 126,912 |
Tags: implementation, sortings
Correct Solution:
```
dic = {}
n = int(input())
l = [int(i) for i in input().split()]
for i in range(n):
if dic.get(l[i], -1 ) == -1:
dic[l[i]] = [i]
else:
dic[l[i]].append(i)
ans = {}
for k, v in dic.items():
if len(v) >=2:
dif = v[1]-v[0]
to_a... | output | 1 | 63,456 | 12 | 126,913 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,457 | 12 | 126,914 |
Tags: implementation, sortings
Correct Solution:
```
N = int(input())
seq = list(map(int, input().strip().split()))
index_dict = dict()
for i, x in enumerate(seq):
if x in index_dict:
index_dict[x].append(i)
else:
index_dict[x] = [i]
for key in index_dict:
index_dict[key] = sorted(index_d... | output | 1 | 63,457 | 12 | 126,915 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,458 | 12 | 126,916 |
Tags: implementation, sortings
Correct Solution:
```
import math
import random
def main(arr):
pos={}
for i in range(len(arr)):
if arr[i] not in pos:
pos[arr[i]]=[]
pos[arr[i]].append(i)
ans=[]
for e in pos:
if len(pos[e])==1:
ans.append([e,0... | output | 1 | 63,458 | 12 | 126,917 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,460 | 12 | 126,920 |
Tags: implementation, sortings
Correct Solution:
```
#!/usr/bin/python3
def readln(): return tuple(map(int, input().split()))
n, = readln()
var = {}
for i, a in enumerate(readln()):
if a in var:
var[a].append(i)
else:
var[a] = [i]
ans = []
for x, v in var.items():
if len(v) == 1:
a... | output | 1 | 63,460 | 12 | 126,921 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,461 | 12 | 126,922 |
Tags: implementation, sortings
Correct Solution:
```
from collections import defaultdict as df
n=int(input())
a=list(map(int,input().rstrip().split()))
d=df(list)
for i in range(n):
d[a[i]].append(i)
d=dict(sorted(d.items()))
result=[]
for i in d:
if len(d[i])==1:
result.append((i,0))
elif len(d[i])... | output | 1 | 63,461 | 12 | 126,923 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,462 | 12 | 126,924 |
Tags: implementation, sortings
Correct Solution:
```
inp, k = {},0
n,s = int(input()),input().split()
for i in range(0, len(s)):
inp_k = int(s[i])
if inp_k in inp: inp[inp_k ]+=[i]
else: inp[inp_k] =[i]
inp_keys = [int(i) for i in inp.keys()]
inp_keys.sort()
result = []
def check(arr):
diff = arr[1]... | output | 1 | 63,462 | 12 | 126,925 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold:
* x occurs in sequence a.
* Con... | instruction | 0 | 63,463 | 12 | 126,926 |
Tags: implementation, sortings
Correct Solution:
```
n=int(input())
a=[int(x) for x in input().split()]
s={}
for i in range(n):
if not a[i] in s.keys():
s[a[i]]=[i]
else:
s[a[i]].append(i)
for e in sorted(s.keys()):
j=1
r=0
while j<=len(s[e])-2:
if s[e][j]-s[e][j-1]!=s[e][j+1... | output | 1 | 63,463 | 12 | 126,927 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence of a with the value l ≤ m.
A subsequence of a... | instruction | 0 | 63,551 | 12 | 127,102 |
Tags: brute force, math, number theory
Correct Solution:
```
from sys import stdin
input = stdin.buffer.readline
n, m = map(int, input().split())
cnt = [0] * (m + 1)
*b, = map(int, input().split())
for i in b:
if i <= m:
cnt[i] += 1
a = [0] * (m + 1)
for i in range(1, m + 1):
for j in range(i, m + 1, i):
a[j] += ... | output | 1 | 63,551 | 12 | 127,103 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence of a with the value l ≤ m.
A subsequence of a... | instruction | 0 | 63,552 | 12 | 127,104 |
Tags: brute force, math, number theory
Correct Solution:
```
import sys
n, m = map(int, sys.stdin.buffer.readline().decode('utf-8').split())
a = list(map(int, sys.stdin.buffer.readline().decode('utf-8').split()))
dp = [0]*(m+1)
for x in a:
if x <= m:
dp[x] += 1
for i in range(m, 0, -1):
for j in ran... | output | 1 | 63,552 | 12 | 127,105 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence of a with the value l ≤ m.
A subsequence of a... | instruction | 0 | 63,553 | 12 | 127,106 |
Tags: brute force, math, number theory
Correct Solution:
```
import bisect
from itertools import accumulate
import os
import sys
import math
from decimal import *
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
... | output | 1 | 63,553 | 12 | 127,107 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence of a with the value l ≤ m.
A subsequence of a... | instruction | 0 | 63,554 | 12 | 127,108 |
Tags: brute force, math, number theory
Correct Solution:
```
import sys
n, m = [int(x) for x in input().split()]
A = [int(x) for x in input().split()]
B, C = [0]*(m+1), [0]*(m+1)
for a in A:
if a <= m: B[a] += 1
for i in range(2, m + 1):
for j in range(i, m+1, i):
C[j] += B[i]
k, l = 1, 0
for i in ran... | output | 1 | 63,554 | 12 | 127,109 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence of a with the value l ≤ m.
A subsequence of a... | instruction | 0 | 63,555 | 12 | 127,110 |
Tags: brute force, math, number theory
Correct Solution:
```
def main():
from collections import Counter
n, m = map(int, input().split())
l = list(map(int, input().split()))
m += 1
tmp = Counter(x for x in l if 1 < x < m)
num = [0] * m
for x, v in tmp.items():
for i in range(x, m, x)... | output | 1 | 63,555 | 12 | 127,111 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence... | instruction | 0 | 63,556 | 12 | 127,112 |
No | output | 1 | 63,556 | 12 | 127,113 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence... | instruction | 0 | 63,557 | 12 | 127,114 |
No | output | 1 | 63,557 | 12 | 127,115 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence... | instruction | 0 | 63,558 | 12 | 127,116 |
No | output | 1 | 63,558 | 12 | 127,117 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given array a with n elements and the number m. Consider some subsequence of a and the value of least common multiple (LCM) of its elements. Denote LCM as l. Find any longest subsequence... | instruction | 0 | 63,559 | 12 | 127,118 |
No | output | 1 | 63,559 | 12 | 127,119 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,624 | 12 | 127,248 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import seed, sample
from functools import lru_cache
req_left = 1999
@lru_cache(None)
def ask(x):
global req_left
req_left -= 1
print("?", x, flush=True)
return tuple(map(int, input().split()))
seed(1337)
n, start, x = ma... | output | 1 | 63,624 | 12 | 127,249 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,625 | 12 | 127,250 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
def ans(v):
print('!', v)
exit()
n, s, x = R()
d = [None] * (n... | output | 1 | 63,625 | 12 | 127,251 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,626 | 12 | 127,252 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
def ans(v):
print('!', v)
exit()
n, s, x = R()
mv = -1
i = s
S... | output | 1 | 63,626 | 12 | 127,253 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,627 | 12 | 127,254 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
import random
SIZE = 900
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
n, s, x = R()
q = range(1, n + 1)
if n > SIZE:
q = random.sample(q,... | output | 1 | 63,627 | 12 | 127,255 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,628 | 12 | 127,256 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
def ans(v):
print('!', v)
exit()
n, s, x = R()
mv = -1
i = s
c... | output | 1 | 63,628 | 12 | 127,257 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,629 | 12 | 127,258 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
SIZE = 950
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
def ans(v):
print('!', v)
exit()
n, s, x = R()
v, ... | output | 1 | 63,629 | 12 | 127,259 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,630 | 12 | 127,260 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
n,start,x=map(int,input().split())
f = min(n, 998)
def get(i):
print('?', i)
return list(map(int, input().split()))
def answer(a):
print('!', a)
exit(0)
arr=[]
arr.append(get(start))
if arr[0][0] >= x:
... | output | 1 | 63,630 | 12 | 127,261 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is an interactive problem.
You are given a sorted in increasing order singly linked list. You should find the minimum integer in the list which is greater than or equal to x.
More formally, there is a singly liked list built on an arr... | instruction | 0 | 63,631 | 12 | 127,262 |
Tags: brute force, interactive, probabilities
Correct Solution:
```
from random import sample
def R():
return map(int, input().split())
def ask(i):
print('?', i, flush=True)
v, nxt = R()
if v < 0:
exit()
return v, nxt
def ans(v):
print('!', v)
exit()
n, s, x = R()
mv = -1
i = s
S... | output | 1 | 63,631 | 12 | 127,263 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,656 | 12 | 127,312 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
def gcd(a: int, b: int): return gcd(b, a % b) if b else a
nb = int(input())
s = input()
numbers = [int(i) for i in s.split(" ")]
number = -1
flag = True
op = 0
def count1(s):
res = 0
for i in s:
if i == 1:
res += 1
... | output | 1 | 63,656 | 12 | 127,313 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,657 | 12 | 127,314 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
n = int(input())
arr = list(map(int, input().split()))
def GCD(x, y):
if y > 0:
return GCD(y, x % y)
else:
return x
allGCD = arr[0]
for i in arr:
allGCD = GCD(allGCD, i)
if allGCD > 1:
print(-1)
else:
ones ... | output | 1 | 63,657 | 12 | 127,315 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,658 | 12 | 127,316 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
from math import gcd
def read():
return [int(v) for v in input().split()]
def main():
n = read()[0]
a = read()
g = a[0]
cnt = a[0] != 1
for i in range(1, n):
g = gcd(g, a[i])
if a[i] != 1:
c... | output | 1 | 63,658 | 12 | 127,317 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,659 | 12 | 127,318 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
import math
n=int(input())
a=list(map(int,input().split()))
x=0
for i in range(n):
x=math.gcd(x,a[i])
if(x>1):
print("-1")
else:
cnt=0
if 1 in a:
cnt=a.count(1)
print(n-cnt)
else:
l=9999999999999999
for i in range(n):
x=a[i]
for... | output | 1 | 63,659 | 12 | 127,319 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,660 | 12 | 127,320 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
from math import gcd
n=int(input())
a=list(map(int,input().split()))
m=a.count(1)
if m>0:
print(n-m)
exit()
ans=-1
for i in range(n):
d=a[i]
c=i
for j in range(i+1,n):
d=gcd(d,a[j])
if d==1:
c=j
... | output | 1 | 63,660 | 12 | 127,321 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacent elements from a, say x and y, and replace one of them with gcd(x, y), where gcd denotes the [greatest common divisor](https://en.... | instruction | 0 | 63,661 | 12 | 127,322 |
Tags: brute force, dp, greedy, math, number theory
Correct Solution:
```
import math
def gcd(a, b):
if b == 0:
return a
return gcd(b, a % b)
n = int(input())
arr = [int(i) for i in input().split()]
ones = 0
for i in range(n):
if arr[i] == 1:
ones += 1
if ones > 0:
print(n - ones)
els... | output | 1 | 63,661 | 12 | 127,323 |
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