結果
問題 | No.1254 補強への架け橋 |
ユーザー | Kude |
提出日時 | 2020-10-09 23:51:44 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 953 ms / 2,000 ms |
コード長 | 939 bytes |
コンパイル時間 | 88 ms |
コンパイル使用メモリ | 10,888 KB |
実行使用メモリ | 84,824 KB |
最終ジャッジ日時 | 2023-09-27 20:12:32 |
合計ジャッジ時間 | 33,099 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 | 17 ms
8,200 KB |
testcase_01 | AC | 16 ms
8,184 KB |
testcase_02 | AC | 17 ms
8,252 KB |
testcase_03 | AC | 17 ms
8,252 KB |
testcase_04 | AC | 16 ms
8,280 KB |
testcase_05 | AC | 16 ms
8,204 KB |
testcase_06 | AC | 16 ms
8,288 KB |
testcase_07 | AC | 17 ms
8,208 KB |
testcase_08 | AC | 16 ms
8,256 KB |
testcase_09 | AC | 16 ms
8,264 KB |
testcase_10 | AC | 16 ms
8,240 KB |
testcase_11 | AC | 16 ms
8,356 KB |
testcase_12 | AC | 16 ms
8,280 KB |
testcase_13 | AC | 18 ms
8,256 KB |
testcase_14 | AC | 17 ms
8,400 KB |
testcase_15 | AC | 17 ms
8,288 KB |
testcase_16 | AC | 16 ms
8,372 KB |
testcase_17 | AC | 16 ms
8,200 KB |
testcase_18 | AC | 17 ms
8,192 KB |
testcase_19 | AC | 16 ms
8,312 KB |
testcase_20 | AC | 17 ms
8,236 KB |
testcase_21 | AC | 17 ms
8,252 KB |
testcase_22 | AC | 17 ms
8,204 KB |
testcase_23 | AC | 16 ms
8,364 KB |
testcase_24 | AC | 16 ms
8,200 KB |
testcase_25 | AC | 17 ms
8,344 KB |
testcase_26 | AC | 16 ms
8,212 KB |
testcase_27 | AC | 16 ms
8,272 KB |
testcase_28 | AC | 16 ms
8,256 KB |
testcase_29 | AC | 16 ms
8,192 KB |
testcase_30 | AC | 17 ms
7,808 KB |
testcase_31 | AC | 16 ms
8,400 KB |
testcase_32 | AC | 16 ms
7,700 KB |
testcase_33 | AC | 16 ms
8,200 KB |
testcase_34 | AC | 17 ms
8,216 KB |
testcase_35 | AC | 16 ms
8,228 KB |
testcase_36 | AC | 17 ms
8,120 KB |
testcase_37 | AC | 17 ms
8,368 KB |
testcase_38 | AC | 17 ms
8,260 KB |
testcase_39 | AC | 17 ms
8,364 KB |
testcase_40 | AC | 17 ms
7,924 KB |
testcase_41 | AC | 17 ms
8,340 KB |
testcase_42 | AC | 16 ms
8,116 KB |
testcase_43 | AC | 21 ms
8,676 KB |
testcase_44 | AC | 18 ms
8,536 KB |
testcase_45 | AC | 18 ms
8,476 KB |
testcase_46 | AC | 20 ms
8,564 KB |
testcase_47 | AC | 19 ms
8,488 KB |
testcase_48 | AC | 20 ms
8,556 KB |
testcase_49 | AC | 17 ms
8,256 KB |
testcase_50 | AC | 22 ms
8,572 KB |
testcase_51 | AC | 21 ms
8,608 KB |
testcase_52 | AC | 21 ms
8,640 KB |
testcase_53 | AC | 21 ms
8,580 KB |
testcase_54 | AC | 21 ms
8,624 KB |
testcase_55 | AC | 20 ms
8,644 KB |
testcase_56 | AC | 17 ms
8,236 KB |
testcase_57 | AC | 19 ms
8,536 KB |
testcase_58 | AC | 20 ms
8,556 KB |
testcase_59 | AC | 16 ms
8,236 KB |
testcase_60 | AC | 18 ms
8,244 KB |
testcase_61 | AC | 20 ms
8,588 KB |
testcase_62 | AC | 17 ms
8,340 KB |
testcase_63 | AC | 75 ms
13,384 KB |
testcase_64 | AC | 31 ms
9,584 KB |
testcase_65 | AC | 54 ms
11,892 KB |
testcase_66 | AC | 47 ms
11,136 KB |
testcase_67 | AC | 29 ms
9,496 KB |
testcase_68 | AC | 49 ms
11,632 KB |
testcase_69 | AC | 58 ms
12,292 KB |
testcase_70 | AC | 34 ms
9,904 KB |
testcase_71 | AC | 29 ms
9,496 KB |
testcase_72 | AC | 60 ms
12,368 KB |
testcase_73 | AC | 32 ms
9,756 KB |
testcase_74 | AC | 57 ms
12,012 KB |
testcase_75 | AC | 46 ms
11,412 KB |
testcase_76 | AC | 22 ms
8,860 KB |
testcase_77 | AC | 41 ms
10,560 KB |
testcase_78 | AC | 70 ms
12,756 KB |
testcase_79 | AC | 69 ms
13,044 KB |
testcase_80 | AC | 63 ms
12,492 KB |
testcase_81 | AC | 71 ms
13,148 KB |
testcase_82 | AC | 67 ms
12,780 KB |
testcase_83 | AC | 807 ms
63,540 KB |
testcase_84 | AC | 785 ms
62,444 KB |
testcase_85 | AC | 476 ms
39,236 KB |
testcase_86 | AC | 678 ms
52,568 KB |
testcase_87 | AC | 763 ms
55,568 KB |
testcase_88 | AC | 108 ms
15,852 KB |
testcase_89 | AC | 813 ms
63,332 KB |
testcase_90 | AC | 508 ms
40,524 KB |
testcase_91 | AC | 396 ms
35,568 KB |
testcase_92 | AC | 198 ms
23,708 KB |
testcase_93 | AC | 643 ms
46,672 KB |
testcase_94 | AC | 574 ms
43,848 KB |
testcase_95 | AC | 577 ms
43,788 KB |
testcase_96 | AC | 784 ms
61,540 KB |
testcase_97 | AC | 320 ms
30,152 KB |
testcase_98 | AC | 778 ms
61,724 KB |
testcase_99 | AC | 458 ms
38,544 KB |
testcase_100 | AC | 810 ms
64,492 KB |
testcase_101 | AC | 173 ms
22,916 KB |
testcase_102 | AC | 92 ms
15,060 KB |
testcase_103 | AC | 196 ms
23,904 KB |
testcase_104 | AC | 278 ms
27,548 KB |
testcase_105 | AC | 624 ms
46,680 KB |
testcase_106 | AC | 359 ms
34,316 KB |
testcase_107 | AC | 816 ms
63,476 KB |
testcase_108 | AC | 802 ms
62,852 KB |
testcase_109 | AC | 630 ms
46,124 KB |
testcase_110 | AC | 566 ms
43,428 KB |
testcase_111 | AC | 611 ms
45,376 KB |
testcase_112 | AC | 264 ms
26,748 KB |
testcase_113 | AC | 550 ms
42,484 KB |
testcase_114 | AC | 341 ms
31,148 KB |
testcase_115 | AC | 114 ms
16,488 KB |
testcase_116 | AC | 411 ms
36,320 KB |
testcase_117 | AC | 261 ms
26,740 KB |
testcase_118 | AC | 745 ms
61,156 KB |
testcase_119 | AC | 433 ms
38,180 KB |
testcase_120 | AC | 711 ms
54,884 KB |
testcase_121 | AC | 210 ms
24,808 KB |
testcase_122 | AC | 403 ms
35,984 KB |
testcase_123 | AC | 16 ms
8,364 KB |
testcase_124 | AC | 953 ms
84,824 KB |
testcase_125 | AC | 949 ms
84,824 KB |
ソースコード
import sys sys.setrecursionlimit(10**7) n = int(input()) to = [[] for _ in range(n)] bmap = {} for i in range(1, n+1): a, b = map(int, input().split()) a -= 1 b -= 1 to[a].append(b) to[b].append(a) bmap[(a, b)] = bmap[(b, a)] = i num = [-1] * n low = [-1] * n visited = [False] * n ans = 0 nm = 1 def dfs(v, p=-1): global nm visited[v] = True num[v] = nm nm += 1 lw = num[v] for w in to[v]: if w == p: continue if not visited[w]: dfs(w, v) lw = min(lw, low[w]) else: lw = min(lw, num[w]) low[v] = lw dfs(0) ans = set(range(1, n+1)) visited = [False] * n def dfs2(v, p=-1): visited[v] = True for w in to[v]: if w == p: continue if not visited[w]: dfs2(w, v) if low[w] > num[v]: ans.remove(bmap[(v, w)]) dfs2(0) print(len(ans)) print(*ans)