結果
問題 | No.1501 酔歩 |
ユーザー | kimiyuki |
提出日時 | 2021-05-07 22:20:14 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 1,080 bytes |
コンパイル時間 | 833 ms |
コンパイル使用メモリ | 11,044 KB |
実行使用メモリ | 30,872 KB |
最終ジャッジ日時 | 2023-10-13 13:35:42 |
合計ジャッジ時間 | 66,847 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge12 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 35 ms
10,460 KB |
testcase_01 | AC | 36 ms
10,372 KB |
testcase_02 | AC | 35 ms
10,344 KB |
testcase_03 | AC | 36 ms
10,352 KB |
testcase_04 | RE | - |
testcase_05 | AC | 1,595 ms
26,484 KB |
testcase_06 | AC | 1,190 ms
22,172 KB |
testcase_07 | AC | 1,520 ms
25,276 KB |
testcase_08 | AC | 340 ms
13,636 KB |
testcase_09 | AC | 1,375 ms
23,592 KB |
testcase_10 | AC | 507 ms
15,388 KB |
testcase_11 | AC | 1,231 ms
22,188 KB |
testcase_12 | AC | 767 ms
18,936 KB |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | AC | 1,928 ms
30,776 KB |
testcase_23 | TLE | - |
testcase_24 | AC | 1,956 ms
30,580 KB |
testcase_25 | AC | 1,905 ms
30,872 KB |
testcase_26 | AC | 1,794 ms
30,508 KB |
testcase_27 | AC | 1,946 ms
30,800 KB |
testcase_28 | TLE | - |
testcase_29 | AC | 1,856 ms
30,680 KB |
testcase_30 | TLE | - |
testcase_31 | AC | 1,855 ms
30,564 KB |
testcase_32 | AC | 1,859 ms
30,652 KB |
testcase_33 | TLE | - |
testcase_34 | AC | 1,961 ms
30,680 KB |
testcase_35 | AC | 1,913 ms
30,660 KB |
testcase_36 | AC | 1,973 ms
30,588 KB |
testcase_37 | AC | 1,791 ms
30,668 KB |
testcase_38 | AC | 1,847 ms
30,700 KB |
testcase_39 | TLE | - |
testcase_40 | AC | 1,889 ms
30,608 KB |
testcase_41 | TLE | - |
testcase_42 | AC | 1,703 ms
28,404 KB |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | AC | 1,820 ms
28,004 KB |
testcase_46 | AC | 1,946 ms
27,996 KB |
testcase_47 | AC | 1,644 ms
28,100 KB |
testcase_48 | AC | 1,719 ms
28,268 KB |
testcase_49 | AC | 1,903 ms
28,396 KB |
testcase_50 | AC | 1,824 ms
28,364 KB |
testcase_51 | AC | 1,719 ms
28,188 KB |
testcase_52 | AC | 1,698 ms
28,412 KB |
testcase_53 | RE | - |
testcase_54 | AC | 35 ms
10,460 KB |
testcase_55 | AC | 36 ms
10,336 KB |
ソースコード
#!/usr/bin/env python3 import fractions from typing import * def solve(n: int, k: int, x: List[int]) -> str: a = [None] * (n - 1) b = [None] * (n - 1) a[0] = 0 b[0] = 0 for i in range(1, n - 1): left = fractions.Fraction(x[i - 1], x[i - 1] + x[i + 1]) right = fractions.Fraction(x[i + 1], x[i - 1] + x[i + 1]) a[i] = right / (1 - a[i - 1] * left) b[i] = b[i - 1] * left / (1 - a[i - 1] * left) if k == n: return 1 c = 1 for i in reversed(range(k - 1, n - 1)): c = a[i] * c + b[i] return c # generated by oj-template v4.7.2 (https://github.com/online-judge-tools/template-generator) def main(): import sys tokens = iter(sys.stdin.read().split()) N = int(next(tokens)) K = int(next(tokens)) A = [None for _ in range(N)] for i in range(N): A[i] = int(next(tokens)) assert next(tokens, None) is None a = solve(N, K, A) if a == 0: print(0) elif a == 1: print('1/1') else: print(a) if __name__ == '__main__': main()