結果
問題 | No.583 鉄道同好会 |
ユーザー | McGregorsh |
提出日時 | 2023-07-04 22:11:53 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,646 bytes |
コンパイル時間 | 490 ms |
コンパイル使用メモリ | 82,176 KB |
実行使用メモリ | 89,856 KB |
最終ジャッジ日時 | 2024-07-18 17:17:03 |
合計ジャッジ時間 | 4,117 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 152 ms
88,448 KB |
testcase_01 | AC | 145 ms
88,448 KB |
testcase_02 | AC | 142 ms
88,576 KB |
testcase_03 | AC | 142 ms
88,448 KB |
testcase_04 | WA | - |
testcase_05 | AC | 144 ms
88,448 KB |
testcase_06 | AC | 143 ms
88,192 KB |
testcase_07 | AC | 142 ms
88,192 KB |
testcase_08 | AC | 148 ms
88,448 KB |
testcase_09 | AC | 140 ms
88,320 KB |
testcase_10 | AC | 140 ms
88,576 KB |
testcase_11 | AC | 150 ms
89,344 KB |
testcase_12 | AC | 153 ms
89,728 KB |
testcase_13 | AC | 155 ms
89,472 KB |
testcase_14 | AC | 153 ms
89,856 KB |
testcase_15 | AC | 159 ms
89,856 KB |
testcase_16 | AC | 171 ms
89,600 KB |
testcase_17 | AC | 169 ms
89,216 KB |
testcase_18 | AC | 163 ms
89,472 KB |
ソースコード
import sys from sys import stdin from fractions import Fraction import math 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, lru_cache from decimal import Decimal, getcontext, ROUND_HALF_UP def i_input(): return int(stdin.readline()) def i_map(): return map(int, stdin.readline().split()) def i_list(): return list(i_map()) def s_input(): return stdin.readline()[:-1] def s_map(): return s_input().split() def s_list(): return list(s_map()) 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 alpa = 'abcdefghijklmnopqrstuvwxyz' ALPA = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' def main(): N, M = i_map() cou = [0] * N for i in range(M): a, b = i_map() cou[a] += 1 cou[b] += 1 p = 0 g = 0 k = 0 for i in range(N): if cou[i] > 0: k += 1 if cou[i] % 2 == 1: p += 1 else: if cou[i] > 0: g += 1 if g == k: print('YES') exit() if p == 2: print('YES') exit() print('NO') if __name__ == '__main__': main()