結果
問題 | No.583 鉄道同好会 |
ユーザー | McGregorsh |
提出日時 | 2022-11-02 09:07:35 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,289 bytes |
コンパイル時間 | 427 ms |
コンパイル使用メモリ | 82,276 KB |
実行使用メモリ | 849,664 KB |
最終ジャッジ日時 | 2024-07-16 16:53:27 |
合計ジャッジ時間 | 16,313 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 151 ms
89,460 KB |
testcase_01 | AC | 149 ms
89,436 KB |
testcase_02 | AC | 148 ms
89,364 KB |
testcase_03 | AC | 145 ms
89,464 KB |
testcase_04 | AC | 146 ms
89,336 KB |
testcase_05 | AC | 145 ms
89,400 KB |
testcase_06 | AC | 146 ms
89,352 KB |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | AC | 143 ms
88,988 KB |
testcase_10 | AC | 148 ms
89,512 KB |
testcase_11 | AC | 1,343 ms
402,188 KB |
testcase_12 | TLE | - |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | MLE | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
ソースコード
import sys, re from fractions import Fraction from math import ceil, floor, sqrt, pi, factorial, gcd from copy import deepcopy from collections import Counter, deque, defaultdict from heapq import heapify, heappop, heappush from itertools import accumulate, product, combinations, combinations_with_replacement, permutations from bisect import bisect, bisect_left, bisect_right from functools import reduce from decimal import Decimal, getcontext, ROUND_HALF_UP def i_input(): return int(input()) def i_map(): return map(int, input().split()) def i_list(): return list(i_map()) def i_row(N): return [i_input() for _ in range(N)] def i_row_list(N): return [i_list() for _ in range(N)] def s_input(): return input() def s_map(): return input().split() def s_list(): return list(s_map()) def s_row(N): return [s_input for _ in range(N)] def s_row_str(N): return [s_list() for _ in range(N)] def s_row_list(N): return [list(s_input()) for _ in range(N)] def lcm(a, b): return a * b // gcd(a, b) def get_distance(x1, y1, x2, y2): d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2) return d def rotate(table): n_fild = [] for x in zip(*table[::-1]): n_fild.append(x) return n_fild sys.setrecursionlimit(10 ** 7) INF = float('inf') MOD = 10 ** 9 + 7 MOD2 = 998244353 ###関数コピーしたか?### def main(): N, M = i_map() nums = [[] for i in range(N)] for i in range(M): sa, sb = i_map() nums[sa].append(i) nums[sb].append(i) lines = [[] for i in range(M)] gree = [set() for i in range(M)] for i in range(N): lennums = len(nums[i]) for j in range(lennums-1): for k in range(j+1, lennums): A = nums[i][j] B = nums[i][k] lines[A].append(B) lines[B].append(A) gree[A].add(B) gree[B].add(A) def dfs(s, p): juge[s] = True #print(s, p) #print(juge) for i in lines[s]: if i == p: continue if juge[i]: continue if i in gree[p]: continue dfs(i, s) break juge = [False] * M dfs(0, -1) dfs(0, -1) if sum(juge) == M: print('YES') else: print('NO') if __name__ == '__main__': main()