message stringlengths 2 65.1k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 0 108k | cluster float64 14 14 | __index_level_0__ int64 0 217k |
|---|---|---|---|---|---|
Provide a correct Python 3 solution for this coding contest problem.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, inclusive.
* Let F_i be the number of the groups containing... | instruction | 0 | 30,819 | 14 | 61,638 |
"Correct Solution:
```
n,a,b,c,d=map(int,input().split())
dp=[0]*(n+1)
dp[0]=1
mod=10**9+7
N=n
fac=[1]*(N+3)
inv=[1]*(N+3)
t=1
for i in range(1,N+3):
t*=i
t%=mod
fac[i]=t
t=pow(fac[N+2],mod-2,mod)
for i in range(N+2,0,-1):
inv[i]=t
t*=i
t%=mod
def comb(n,r):
if r>n or r<0:
return 0
... | output | 1 | 30,819 | 14 | 61,639 |
Provide a correct Python 3 solution for this coding contest problem.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, inclusive.
* Let F_i be the number of the groups containing... | instruction | 0 | 30,821 | 14 | 61,642 |
"Correct Solution:
```
N, A, B, C, D = map(int, input().split())
MOD = 10 ** 9 + 7
fac = [1] * (N + 1)
for i in range(2, N + 1):
fac[i] = fac[i - 1] * i % MOD
finv = [1] * (N + 1)
finv[-1] = pow(fac[-1], MOD - 2, MOD)
for i in reversed(range(1, N + 1)):
finv[i - 1] = finv[i] * i % MOD
dp = [[0] * (N + 1) for... | output | 1 | 30,821 | 14 | 61,643 |
Provide a correct Python 3 solution for this coding contest problem.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, inclusive.
* Let F_i be the number of the groups containing... | instruction | 0 | 30,822 | 14 | 61,644 |
"Correct Solution:
```
class Combination:
"""
O(n)の前計算を1回行うことで，O(1)でnCr mod mを求められる
n_max = 10**6のとき前処理は約950ms (PyPyなら約340ms, 10**7で約1800ms)
使用例：
comb = Combination(1000000)
print(comb(5, 3)) # 10
"""
def __init__(self, n_max, mod=10**9+7):
self.mod = mod
self.modinv = s... | output | 1 | 30,822 | 14 | 61,645 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,823 | 14 | 61,646 |
Yes | output | 1 | 30,823 | 14 | 61,647 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,824 | 14 | 61,648 |
Yes | output | 1 | 30,824 | 14 | 61,649 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,825 | 14 | 61,650 |
Yes | output | 1 | 30,825 | 14 | 61,651 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,826 | 14 | 61,652 |
Yes | output | 1 | 30,826 | 14 | 61,653 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,827 | 14 | 61,654 |
No | output | 1 | 30,827 | 14 | 61,655 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,828 | 14 | 61,656 |
No | output | 1 | 30,828 | 14 | 61,657 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,829 | 14 | 61,658 |
No | output | 1 | 30,829 | 14 | 61,659 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N people, conveniently numbered 1 through N. We want to divide them into some number of groups, under the following two conditions:
* Every group contains between A and B people, incl... | instruction | 0 | 30,830 | 14 | 61,660 |
No | output | 1 | 30,830 | 14 | 61,661 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,027 | 14 | 62,054 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Codeforces Round #555 (Div. 3)
Problem F. Maximum Balanced Circle
:author: Kitchen Tong
:mail: kctong529@gmail.com
Please feel free to contact me if you have any question
regardi... | output | 1 | 31,027 | 14 | 62,055 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,028 | 14 | 62,056 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
import sys
from collections import namedtuple
from itertools import groupby
input = sys.stdin.readline
def main():
Data = namedtuple('Data', ['arr', 'l', 'r'])
_ = int(input())
a = list(map(int, input().split()))
f = [ [0, ... | output | 1 | 31,028 | 14 | 62,057 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,029 | 14 | 62,058 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
def process(A):
d = {}
for x in A:
if x not in d:
d[x] = 0
d[x]+=1
my_max = [0, None, None]
current = None
for x in sorted(d):
if current is None or x-1 not in d:
current = [... | output | 1 | 31,029 | 14 | 62,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,030 | 14 | 62,060 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
rint = lambda: int(input())
rmint = lambda: map(int,input().split())
rlist = lambda: list(rmint())
n = rint()
lst = rlist()
cnt = {}
for nb in lst:
if nb not in cnt :
cnt[nb] = 1
else:
cnt[nb] +=1
arr = sorted(list(... | output | 1 | 31,030 | 14 | 62,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,031 | 14 | 62,062 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
# Enter your code here. Read input from STDIN. Print output to STDOUT# ===============================================================================================
# importing some useful libraries.
from __future__ import division, print_f... | output | 1 | 31,031 | 14 | 62,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,032 | 14 | 62,064 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
import sys
from collections import Counter
input = sys.stdin.readline
n=int(input())
A=Counter(map(int,input().split()))
M=max(A)
DP0=[0]*(M+1)
DP1=[0]*(M+1)
for i in range(M+1):
if A[i]>=2 and A[i-1]>=2:
DP0[i]=DP0[i-1]+A[i]
... | output | 1 | 31,032 | 14 | 62,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,033 | 14 | 62,066 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
n = int(input())
a = [int(x) for x in input().split()]
c =[0]*2*100007
s =[0]*2*100007
result=0
dis=0
result_list=[]
for i in a:
c[i]+=1
for i in range(len(c)):
if c[i]>0:
s[i]=c[i]
result=c[i]
dis=i
br... | output | 1 | 31,033 | 14 | 62,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order of people that the difference between heights of... | instruction | 0 | 31,034 | 14 | 62,068 |
Tags: constructive algorithms, dp, greedy, two pointers
Correct Solution:
```
import io
import os
from collections import defaultdict
from sys import stdin, stdout
#input = stdin.readline
def main():
n = int(input())
a = list(map(int, input().split()))
s = sorted(set(a))
d = {}
for val in s:
... | output | 1 | 31,034 | 14 | 62,069 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,035 | 14 | 62,070 |
Yes | output | 1 | 31,035 | 14 | 62,071 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,036 | 14 | 62,072 |
Yes | output | 1 | 31,036 | 14 | 62,073 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,037 | 14 | 62,074 |
Yes | output | 1 | 31,037 | 14 | 62,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,038 | 14 | 62,076 |
Yes | output | 1 | 31,038 | 14 | 62,077 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,039 | 14 | 62,078 |
No | output | 1 | 31,039 | 14 | 62,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,040 | 14 | 62,080 |
No | output | 1 | 31,040 | 14 | 62,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,041 | 14 | 62,082 |
No | output | 1 | 31,041 | 14 | 62,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n people in a row. The height of the i-th person is a_i. You can choose any subset of these people and try to arrange them into a balanced circle.
A balanced circle is such an order o... | instruction | 0 | 31,042 | 14 | 62,084 |
No | output | 1 | 31,042 | 14 | 62,085 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In society, the i-th person has an income a_i. A perso... | instruction | 0 | 31,203 | 14 | 62,406 |
Tags: constructive algorithms, dfs and similar, graphs, shortest paths
Correct Solution:
```
n, m = map(int, input().split())
edge = [[] for i in range(n)]
cost = [[10 ** 18 * (i != j) for j in range(n)] for i in range(n)]
for _ in range(m):
u, v, b = map(int, input().split())
edge[u - 1].append(v - 1)
edge... | output | 1 | 31,203 | 14 | 62,407 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In society, the i-th person has an income a_i. A perso... | instruction | 0 | 31,204 | 14 | 62,408 |
Tags: constructive algorithms, dfs and similar, graphs, shortest paths
Correct Solution:
```
from collections import deque
N, M = map(int, input().split())
X = [[] for i in range(N)]
Y = [[] for i in range(N)]
for i in range(M):
x, y, w = map(int, input().split())
X[x-1].append(y-1)
X[y-1].append(x-1)
i... | output | 1 | 31,204 | 14 | 62,409 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In society, the i-th person has an income a_i. A perso... | instruction | 0 | 31,205 | 14 | 62,410 |
Tags: constructive algorithms, dfs and similar, graphs, shortest paths
Correct Solution:
```
import sys
sys.setrecursionlimit(10**5)
int1 = lambda x: int(x)-1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.buffer.readline())
def MI(): return map(int, sys.stdin.buffer.readline().split())
def MI1(): ... | output | 1 | 31,205 | 14 | 62,411 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In society, the i-th person has an income a_i. A perso... | instruction | 0 | 31,206 | 14 | 62,412 |
Tags: constructive algorithms, dfs and similar, graphs, shortest paths
Correct Solution:
```
n,m = map(int,input().split());edge = [[] for i in range(n)];cost = [[10**18*(i!=j) for j in range(n)] for i in range(n)]
for _ in range(m):u,v,b = map(int,input().split());edge[u-1].append(v-1);edge[v-1].append(u-1);cost[u-1][... | output | 1 | 31,206 | 14 | 62,413 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In society, the i-th person has an income a_i. A perso... | instruction | 0 | 31,207 | 14 | 62,414 |
Tags: constructive algorithms, dfs and similar, graphs, shortest paths
Correct Solution:
```
n,m = map(int,input().split())
edge = [[] for i in range(n)]
cost = [[10**18*(i!=j) for j in range(n)] for i in range(n)]
for _ in range(m):
u,v,b = map(int,input().split())
edge[u-1].append(v-1)
edge[v-1].append(u... | output | 1 | 31,207 | 14 | 62,415 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In soci... | instruction | 0 | 31,208 | 14 | 62,416 |
No | output | 1 | 31,208 | 14 | 62,417 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In soci... | instruction | 0 | 31,209 | 14 | 62,418 |
No | output | 1 | 31,209 | 14 | 62,419 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In soci... | instruction | 0 | 31,210 | 14 | 62,420 |
No | output | 1 | 31,210 | 14 | 62,421 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A society can be represented by a connected, undirected graph of n vertices and m edges. The vertices represent people, and an edge (i,j) represents a friendship between people i and j.
In soci... | instruction | 0 | 31,211 | 14 | 62,422 |
No | output | 1 | 31,211 | 14 | 62,423 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,257 | 14 | 62,514 |
Tags: brute force, implementation
Correct Solution:
```
n, k = map(int, input().split())
l = list(map(int, input().split()))
count = 0
prev = l[n-1]
for i in range(n-1, -1, -1):
if l[i]!=prev:
break
else:
count+=1
count = n-count
if k <= count:
print(-1)
else:
print(count)
``` | output | 1 | 31,257 | 14 | 62,515 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,448 | 14 | 62,896 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
i=0
while i<n//2:
if i%2==0:
a[i],a[n-1-i]=a[n-1-i],a[i]
i+=1
for i in range(n):
print(a[i],end=' ')
``` | output | 1 | 31,448 | 14 | 62,897 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,449 | 14 | 62,898 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n = int(input())
l = list(map(int,input().split()))
for i in range(0,n//2,2):
(l[i],l[-i-1]) = (l[-i-1],l[i])
print(*l)
``` | output | 1 | 31,449 | 14 | 62,899 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,450 | 14 | 62,900 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n = int(input())
nums = list(map(int, input().split()))
m = n//2
for i in range(m):
if i%2 == 0:
nums[i], nums[n-i-1] = nums[n-i-1], nums[i]
for j in nums:
print(j, end=' ')
``` | output | 1 | 31,450 | 14 | 62,901 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,451 | 14 | 62,902 |
Tags: constructive algorithms, implementation
Correct Solution:
```
num = int(input())
l = list(map(int,(input().split())))
l = list(reversed(l))
for i in range(num//2):
if i%2 != 0:
l[i],l[num-i-1] = l[num-i-1],l[i]
output = ' '.join(map(str,l))
print(output)
``` | output | 1 | 31,451 | 14 | 62,903 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,452 | 14 | 62,904 |
Tags: constructive algorithms, implementation
Correct Solution:
```
N, l = int(input()), [int(x) for x in input().split()]
for i in range(N // 2):
if(i % 2 == 0):
l[i], l[N - i - 1] = l[N - i - 1], l[i]
print(*l)
``` | output | 1 | 31,452 | 14 | 62,905 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,453 | 14 | 62,906 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n, a = int(input()), input().split()
for i in range(0, n // 2, 2):
a[i], a[-i - 1] = a[-i - 1], a[i]
print(*a)
``` | output | 1 | 31,453 | 14 | 62,907 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,454 | 14 | 62,908 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n, A = int(input()), input().split()
for i in range(0, n // 2, 2):
A[i], A[-i-1] = A[-i-1], A[i]
print(*A)
``` | output | 1 | 31,454 | 14 | 62,909 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Young Timofey has a birthday today! He got kit of n cubes as a birthday present from his parents. Every cube has a number ai, which is written on it. Timofey put all the cubes in a row and went to unpack other presents.
In this time, Timofe... | instruction | 0 | 31,455 | 14 | 62,910 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
for i in range(n//2):
if (i+1) % 2:
a[i], a[n-1-i] = a[n-1-i], a[i]
for i in range(n):
print(a[i], end=' ')
``` | output | 1 | 31,455 | 14 | 62,911 |
Provide a correct Python 3 solution for this coding contest problem.
There are 3^N people dancing in circle. We denote with 0,1,\dots, 3^{N}-1 the positions in the circle, starting from an arbitrary position and going around clockwise. Initially each position in the circle is occupied by one person.
The people are go... | instruction | 0 | 31,557 | 14 | 63,114 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
N = int(readline())
P3 = [pow(3, i) for i in range(N+1)]
St = [1 if s == 'R' else 0 for s in readline().strip()]
LS = len(St)
ans = [None]*P3[N]
arr = [None]*P3[N]
ans[0] = 0
arr[0] = St[:]
REV = (0, 2, 1)
for l in range(N):
p3l = P3[l]
for i in ... | output | 1 | 31,557 | 14 | 63,115 |
Provide a correct Python 3 solution for this coding contest problem.
There are 3^N people dancing in circle. We denote with 0,1,\dots, 3^{N}-1 the positions in the circle, starting from an arbitrary position and going around clockwise. Initially each position in the circle is occupied by one person.
The people are go... | instruction | 0 | 31,558 | 14 | 63,116 |
"Correct Solution:
```
# salsa=0, rumba=1
# [0 1 0 1] 1より上の位に帯する操作
# 繰り上がりを考慮しつつ、3（より上）の位に対する操作を考える
# [1] 1の位が0である数字の、3の位に対する操作
# [0 1 0] 1の位が1である数字の、3の位に対する操作
# [] 1の位が2である数字の、3の位に対する操作
# ある数字が"2"の時にルンバが来れば繰り上がる（上の位にルンバが波及）
# それ以外の状態では、上の位にとってルンバは無いのと同じことになる
# サルサは常に影響するが、連続した2つのサルサは打ち消し合い、無いのと同じことになる
... | output | 1 | 31,558 | 14 | 63,117 |
Provide a correct Python 3 solution for this coding contest problem.
There are 3^N people dancing in circle. We denote with 0,1,\dots, 3^{N}-1 the positions in the circle, starting from an arbitrary position and going around clockwise. Initially each position in the circle is occupied by one person.
The people are go... | instruction | 0 | 31,559 | 14 | 63,118 |
"Correct Solution:
```
n = int(input())
s = input()
m = 3 ** n
ans = [0] * m
c = 3
t = [[0 if q == 'S' else 1 for q in s]]
for i in range(n) :
nt = [[]] * c
for j in range(c) :
x = j
x = x // (3**i)
pre = j - x*c//3
nxt = []
for q in t[pre] :
if q == 0 :
... | output | 1 | 31,559 | 14 | 63,119 |
Provide a correct Python 3 solution for this coding contest problem.
There are 3^N people dancing in circle. We denote with 0,1,\dots, 3^{N}-1 the positions in the circle, starting from an arbitrary position and going around clockwise. Initially each position in the circle is occupied by one person.
The people are go... | instruction | 0 | 31,560 | 14 | 63,120 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
def calc(x):
stack = []
for _ in range(N):
stack.append((3-x%3)%3)
x //= 3
res = 0
for i in range(N-1, -1, -1):
res *= 3
res += stack[i]
return res
N = int(readline())
P3 = [pow(3, i) for i in range(N+1... | output | 1 | 31,560 | 14 | 63,121 |
Provide a correct Python 3 solution for this coding contest problem.
There are 3^N people dancing in circle. We denote with 0,1,\dots, 3^{N}-1 the positions in the circle, starting from an arbitrary position and going around clockwise. Initially each position in the circle is occupied by one person.
The people are go... | instruction | 0 | 31,561 | 14 | 63,122 |
"Correct Solution:
```
n = int(input())
t = input()
new_pos = [0]
new_w = [0]*len(t)
for i in range(1, n+1):
ith_bit = [0]*(3**i) # ith_bit[p] : 位置 (p mod 3**i) のi番目bit
for k in range(3):
for l in range(3**(i-1)):
ith_bit[k*3**(i-1)+l] = k
pos = new_pos
w = new_w # 繰り上がりが起きても it... | output | 1 | 31,561 | 14 | 63,123 |
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