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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #144229 | #3206. Acperience | someaccaccount | 0 | 867ms | 26088kb | Python3 | 344b | 2023-08-21 15:59:04 | 2023-08-21 16:00:12 |
Judging History
answer
import sys
from fractions import Fraction
from statistics import pvariance
input = sys.stdin.readline
for _ in range(int(input())):
n = int(input())
arr = list(map(int, input().split()))
for i in range(len(arr)):
arr[i] *= n
ans = Fraction(pvariance(arr), n)
print(f'{ans.numerator}/{ans.denominator}')
详细
Test #1:
score: 0
Wrong Answer
time: 867ms
memory: 26088kb
input:
393 4 1 2 3 4 4 2 2 2 2 5 5 6 2 3 4 10 0 0 1 -1 -1 1 -1 1 -1 -1 10 -1 -1 -1 1 1 0 1 -1 -1 1 10 1 1 0 -1 0 1 0 1 -1 -1 10 0 0 0 1 -1 -1 1 1 1 1 10 -1 1 -1 -1 1 0 1 -1 -1 0 10 1 1 0 -1 1 -1 -1 -1 0 1 10 1 0 1 1 -1 -1 0 0 0 -1 10 -1 1 -1 -1 0 0 -1 1 1 1 10 0 -1 -1 0 -1 0 1 1 1 0 10 0 1 1 0 1 0 -1 1 1 1...
output:
5/1 0/1 10/1 38/5 89/10 69/10 61/10 38/5 8/1 6/1 8/1 6/1 9/2 28/5 49/10 61/10 69/10 69/10 38/5 9/2 69/10 49/10 28/5 28/5 28/5 49/10 28/5 6/1 38/5 28/5 41/10 69/10 61/10 69/10 69/10 18/5 81/10 32/5 89/10 12/5 61/10 8/1 28/5 69/10 89/10 49/10 49/10 22/5 61/10 69/10 69/10 61/10 61/10 6/1 49/10 12/5 8/1...
result:
wrong answer 4th lines differ - expected: '8/5', found: '38/5'