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.
For a permutation P[1... N] of integers from 1 to N, function f is defined as follows:
<image>
Let g(i) be the minimum positive integer j such that f(i, j) = i. We can show such j always exist... | instruction | 0 | 4,778 | 12 | 9,556 |
Yes | output | 1 | 4,778 | 12 | 9,557 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a permutation P[1... N] of integers from 1 to N, function f is defined as follows:
<image>
Let g(i) be the minimum positive integer j such that f(i, j) = i. We can show such j always exist... | instruction | 0 | 4,779 | 12 | 9,558 |
No | output | 1 | 4,779 | 12 | 9,559 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a permutation P[1... N] of integers from 1 to N, function f is defined as follows:
<image>
Let g(i) be the minimum positive integer j such that f(i, j) = i. We can show such j always exist... | instruction | 0 | 4,780 | 12 | 9,560 |
No | output | 1 | 4,780 | 12 | 9,561 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a permutation P[1... N] of integers from 1 to N, function f is defined as follows:
<image>
Let g(i) be the minimum positive integer j such that f(i, j) = i. We can show such j always exist... | instruction | 0 | 4,781 | 12 | 9,562 |
No | output | 1 | 4,781 | 12 | 9,563 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a permutation P[1... N] of integers from 1 to N, function f is defined as follows:
<image>
Let g(i) be the minimum positive integer j such that f(i, j) = i. We can show such j always exist... | instruction | 0 | 4,782 | 12 | 9,564 |
No | output | 1 | 4,782 | 12 | 9,565 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,792 | 12 | 9,584 |
Tags: combinatorics, math
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
if sum(a[i]==i+1 for i in range(n))>=n//1000:print("Petr")
else:print("Um_nik")
``` | output | 1 | 4,792 | 12 | 9,585 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,793 | 12 | 9,586 |
Tags: combinatorics, math
Correct Solution:
```
input()
a=list(map(int,input().split()))
n=len(a)
u=n
for i in range(n):
j=i
k=0
while a[j]>0:
k+=1
t=j
j=a[j]-1
a[t]=0
if k>0:
u+=1-k%2
s='Petr'
if u%2>0:
s='Um_nik'
print(s)
``` | output | 1 | 4,793 | 12 | 9,587 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,794 | 12 | 9,588 |
Tags: combinatorics, math
Correct Solution:
```
#!/usr/bin/env python3
n = int(input().strip())
ais = list(map(int, input().strip().split()))
visited = [False for _ in range(n)]
parity = 0
for i in range(n):
if not visited[i]:
parity += 1
j = i
while not visited[j]:
visited[j] = True
j = ais[j] - 1
if ... | output | 1 | 4,794 | 12 | 9,589 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,795 | 12 | 9,590 |
Tags: combinatorics, math
Correct Solution:
```
n = int( input() )
a = list( map( lambda x: int( x )-1, input().split( ' ' ) ) )
ret = True
for i in range( n ):
if a[i]==-1: continue
x, ret = i, not ret
while a[x]!=i:
a[x], x = -1, a[x]
a[x] = -1
if ret: print( "Petr" )
else: print( "Um_nik" )... | output | 1 | 4,795 | 12 | 9,591 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,796 | 12 | 9,592 |
Tags: combinatorics, math
Correct Solution:
```
n = int(input())
u = list(map(int, input().split()))
for i in range(n):
u[i] -= 1
ans = 0
for i in range(n):
if u[i] == -1:
continue
ans = 1 - ans
x = i
while x >= 0:
y = u[x]
u[x] = -1
x = y
if ans:
print('Um_nik')
... | output | 1 | 4,796 | 12 | 9,593 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,797 | 12 | 9,594 |
Tags: combinatorics, math
Correct Solution:
```
n=int(input())
a=[0] + list(map(int,input().split()))
d={}
for i in range(1,n+1):
d[a[i]]=i
ans=0
for i in range(1,n+1):
if a[i]!=i:
ind1=d[a[i]]
ind2=d[i]
va1=a[i]
val2=i
a[ind1],a[ind2]=a[ind2],a[ind1]
d[i]=i
... | output | 1 | 4,797 | 12 | 9,595 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,798 | 12 | 9,596 |
Tags: combinatorics, math
Correct Solution:
```
import sys
n = int(sys.stdin.readline().rstrip())
nums = list(map(int, sys.stdin.readline().split()))
swaps = 0
visited = set()
for index in range(n):
if index in visited:
continue
else:
visited.add(index)
length = 0
value = nums[... | output | 1 | 4,798 | 12 | 9,597 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,799 | 12 | 9,598 |
Tags: combinatorics, math
Correct Solution:
```
class BIT:
__all__ = ['add', 'sumrange', 'lower_left']
def __init__(self, maxsize=10**7):
assert (maxsize > 0)
self._n = maxsize+1
self._bitdata = [0]*(maxsize+1)
def add(self, i, x):
'''Add x to A[i] (A[i] += x) '''
... | output | 1 | 4,799 | 12 | 9,599 |
Provide tags and a correct Python 2 solution for this coding contest problem.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutation of numbers from 1 to n and then 3n times ta... | instruction | 0 | 4,800 | 12 | 9,600 |
Tags: combinatorics, 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
def in_num():
return int(raw_input())
def in_arr():
return map(int,raw_input().split())
d... | output | 1 | 4,800 | 12 | 9,601 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,801 | 12 | 9,602 |
Yes | output | 1 | 4,801 | 12 | 9,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,802 | 12 | 9,604 |
Yes | output | 1 | 4,802 | 12 | 9,605 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,803 | 12 | 9,606 |
Yes | output | 1 | 4,803 | 12 | 9,607 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,804 | 12 | 9,608 |
Yes | output | 1 | 4,804 | 12 | 9,609 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,805 | 12 | 9,610 |
No | output | 1 | 4,805 | 12 | 9,611 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,806 | 12 | 9,612 |
No | output | 1 | 4,806 | 12 | 9,613 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,807 | 12 | 9,614 |
No | output | 1 | 4,807 | 12 | 9,615 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petr likes to come up with problems about randomly generated data. This time problem is about random permutation. He decided to generate a random permutation this way: he takes identity permutat... | instruction | 0 | 4,808 | 12 | 9,616 |
No | output | 1 | 4,808 | 12 | 9,617 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of length n, consisting only of the numbers 0 and 1, a... | instruction | 0 | 5,096 | 12 | 10,192 |
Tags: combinatorics, dp, matrices, probabilities
Correct Solution:
```
N, T = map(int, input().split())
A = [int(a) for a in input().split()]
if sum(A) > N//2:
A = [1-a for a in A][::-1]
K = sum(A)
S = sum(A[-K:])
M = K + 1
P = 10**9+7
inv = pow(N*(N-1)//2, P-2, P)
X = [[0]*M for _ in range(M)]
for i in range(M):
... | output | 1 | 5,096 | 12 | 10,193 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of length n, consisting only of the numbers 0 and 1, a... | instruction | 0 | 5,097 | 12 | 10,194 |
Tags: combinatorics, dp, matrices, probabilities
Correct Solution:
```
import sys; input=sys.stdin.readline
# print(input())
N, T = map(int, input().split())
A = [int(a) for a in input().split()]
if sum(A) > N//2:
A = [1-a for a in A][::-1]
K = sum(A)
S = sum(A[-K:])
M = K + 1
P = 10**9+7
inv = pow(N*(N-1)//2, P-2,... | output | 1 | 5,097 | 12 | 10,195 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of length n, consisting only of the numbers 0 and 1, a... | instruction | 0 | 5,098 | 12 | 10,196 |
Tags: combinatorics, dp, matrices, probabilities
Correct Solution:
```
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Codeforces Round #553 (Div. 2)
Problem F. Sonya and Informatics
:author: Kitchen Tong
:mail: kctong529@gmail.com
Please feel free to contact me if you have any question
regarding the im... | output | 1 | 5,098 | 12 | 10,197 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of length n, consisting only of the numbers 0 and 1, a... | instruction | 0 | 5,099 | 12 | 10,198 |
Tags: combinatorics, dp, matrices, probabilities
Correct Solution:
```
M = 10 ** 9 + 7
n, k = map(int, input().split())
a = list(map(int, input().split()))
z, o = a.count(0), a.count(1)
d = pow(n * (n - 1) // 2, M - 2, M)
if z > o:
o, z = z, o
a = [1 - x for x in a][::-1]
res = [[0] * (z + 1) for i in range... | output | 1 | 5,099 | 12 | 10,199 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of leng... | instruction | 0 | 5,100 | 12 | 10,200 |
No | output | 1 | 5,100 | 12 | 10,201 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of leng... | instruction | 0 | 5,101 | 12 | 10,202 |
No | output | 1 | 5,101 | 12 | 10,203 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A girl named Sonya is studying in the scientific lyceum of the Kingdom of Kremland. The teacher of computer science (Sonya's favorite subject!) invented a task for her.
Given an array a of leng... | instruction | 0 | 5,102 | 12 | 10,204 |
No | output | 1 | 5,102 | 12 | 10,205 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,177 | 12 | 10,354 |
Tags: greedy
Correct Solution:
```
from sys import stdin, gettrace
if not gettrace():
def input():
return next(stdin)[:-1]
def main():
def solve():
n = int(input())
bb = [int(a) for a in input().split()]
avail = [False] + [True] * 2 * n
for b in bb:
avail[... | output | 1 | 5,177 | 12 | 10,355 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,178 | 12 | 10,356 |
Tags: greedy
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
a=list(map(int,input().split()));d={}
for i in range(n):
d[a[i]]=1
ans=[];f=0
for i in range(n):
if a[i]<2*n:
for j in range(a[i],(2*n)+2):
if not d.get(j) and j<=2*n:
... | output | 1 | 5,178 | 12 | 10,357 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,179 | 12 | 10,358 |
Tags: greedy
Correct Solution:
```
t=int(input())
for i in range(0,t):
n=int(input())
b=[]
c=[]
a=list(map(int,input().split()))
k1=1
k2=n*2
if(k1 in a and k2 not in a):
for j in range(1,2*n+1):
if(j not in a):
b.append(j)
for j in range(0,n):
... | output | 1 | 5,179 | 12 | 10,359 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,180 | 12 | 10,360 |
Tags: greedy
Correct Solution:
```
from functools import reduce
import os
import sys
from math import *
from collections import *
from fractions import *
from bisect import *
from heapq import*
from io import BytesIO, IOBase
input = lambda: sys.stdin.readline().rstrip("\r\n")
def value():return tuple(map(int,input().s... | output | 1 | 5,180 | 12 | 10,361 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,181 | 12 | 10,362 |
Tags: greedy
Correct Solution:
```
from collections import defaultdict as dfd
for _ in range(int(input())):
N = int(input())
A = list(map(int,input().split()))
C = dfd(int)
for i in range(1,(2*N)+1):
C[i] = 0
for i in range(len(A)):
C[A[i]] = 1
B = []
# print(C)
for i in ... | output | 1 | 5,181 | 12 | 10,363 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,182 | 12 | 10,364 |
Tags: greedy
Correct Solution:
```
t = int(input())
for _ in range(t):
n = int(input())
b = list(map(int, input().split()))
if max(b) >= n*2 or 1 not in b:
print(-1)
else:
a = [0]*(2*n)
ok = True
for i in range(n):
a[i*2] = b[i]
whil... | output | 1 | 5,182 | 12 | 10,365 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,183 | 12 | 10,366 |
Tags: greedy
Correct Solution:
```
for T in range(int(input())):
n = int(input())
x = list(map(int, input().split(" ")))
b = [0]
for i in x:
b.append(i)
vis = [False for cnt_used in range(2*n + 1)]
a = [0 for cnt_a in range(2*n + 1)]
set_elem_b = True
for i in range(1, n+1):
... | output | 1 | 5,183 | 12 | 10,367 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,184 | 12 | 10,368 |
Tags: greedy
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
b=list(map(int,input().split()))
d={}
for i in range(1,2*n+1):
d[i]=1
for i in b:
d[i]=0
a=[]
for i in b:
a.append(i)
z=i
for j in range(z+1,2*n+1):
if d[j]:
... | output | 1 | 5,184 | 12 | 10,369 |
Provide tags and a correct Python 2 solution for this coding contest problem.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
Each test contains one or more test cases. The f... | instruction | 0 | 5,185 | 12 | 10,370 |
Tags: greedy
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 | 5,185 | 12 | 10,371 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,186 | 12 | 10,372 |
Yes | output | 1 | 5,186 | 12 | 10,373 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,187 | 12 | 10,374 |
Yes | output | 1 | 5,187 | 12 | 10,375 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,188 | 12 | 10,376 |
Yes | output | 1 | 5,188 | 12 | 10,377 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,189 | 12 | 10,378 |
Yes | output | 1 | 5,189 | 12 | 10,379 |
Evaluate the correctness of the submitted Python 2 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,190 | 12 | 10,380 |
No | output | 1 | 5,190 | 12 | 10,381 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,191 | 12 | 10,382 |
No | output | 1 | 5,191 | 12 | 10,383 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,192 | 12 | 10,384 |
No | output | 1 | 5,192 | 12 | 10,385 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,193 | 12 | 10,386 |
No | output | 1 | 5,193 | 12 | 10,387 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence b_1, b_2, …, b_n. Find the lexicographically minimal permutation a_1, a_2, …, a_{2n} such that b_i = min(a_{2i-1}, a_{2i}), or determine that it is impossible.
Input
E... | instruction | 0 | 5,194 | 12 | 10,388 |
No | output | 1 | 5,194 | 12 | 10,389 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote the median of a sequence s with odd length as the value in the middle of s if we sort s in non-decreasing order. For example, let s = [1, 2, 5, 7, 2, 3, 12]. After sorting, we get sequence [1, 2, 2, \underline{3}, 5, 7, 12], and... | instruction | 0 | 5,236 | 12 | 10,472 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import sys
for _ in range(int(sys.stdin.readline().strip())):
n,k,m=tuple(map(int,sys.stdin.readline().strip().split(" ")))
ml=set(map(int,sys.stdin.readline().strip().split(" ")))
havitada=[]
for i in range(1,n+1):
if i not in ml:
havitada.appe... | output | 1 | 5,236 | 12 | 10,473 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote the median of a sequence s with odd length as the value in the middle of s if we sort s in non-decreasing order. For example, let s = [1, 2, 5, 7, 2, 3, 12]. After sorting, we get sequence [1, 2, 2, \underline{3}, 5, 7, 12], and... | instruction | 0 | 5,237 | 12 | 10,474 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
import sys
def load_sys():
return sys.stdin.readlines()
def load_local():
with open('input.txt','r') as f:
input = f.readlines()
return input
def km(n,k,m,B):
if (n-m)%(k-1) != 0:
return 'NO'
R = [0]*m
L = [0]... | output | 1 | 5,237 | 12 | 10,475 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's denote the median of a sequence s with odd length as the value in the middle of s if we sort s in non-decreasing order. For example, let s = [1, 2, 5, 7, 2, 3, 12]. After sorting, we get sequence [1, 2, 2, \underline{3}, 5, 7, 12], and... | instruction | 0 | 5,238 | 12 | 10,476 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
T = int(input())
for _ in range(T):
n, k, m = map(int, input().split())
b = [int(i) for i in input().split()]
ff = False
for p, i in enumerate(b):
if i - p - 1 >= k>>1 and n - i - len(b) + p + 1 >= k>>1:
ff = True
... | output | 1 | 5,238 | 12 | 10,477 |
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