結果
問題 | No.1254 補強への架け橋 |
ユーザー | DrDrpilot |
提出日時 | 2022-01-29 12:55:23 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 828 ms / 2,000 ms |
コード長 | 1,422 bytes |
コンパイル時間 | 1,153 ms |
コンパイル使用メモリ | 11,064 KB |
実行使用メモリ | 73,732 KB |
最終ジャッジ日時 | 2023-08-30 10:33:41 |
合計ジャッジ時間 | 35,549 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
(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
8,080 KB |
testcase_01 | AC | 16 ms
8,016 KB |
testcase_02 | AC | 17 ms
8,076 KB |
testcase_03 | AC | 17 ms
8,076 KB |
testcase_04 | AC | 17 ms
8,028 KB |
testcase_05 | AC | 17 ms
8,220 KB |
testcase_06 | AC | 16 ms
8,136 KB |
testcase_07 | AC | 16 ms
8,096 KB |
testcase_08 | AC | 17 ms
8,076 KB |
testcase_09 | AC | 17 ms
7,988 KB |
testcase_10 | AC | 16 ms
8,132 KB |
testcase_11 | AC | 16 ms
8,100 KB |
testcase_12 | AC | 16 ms
7,996 KB |
testcase_13 | AC | 17 ms
8,132 KB |
testcase_14 | AC | 17 ms
8,156 KB |
testcase_15 | AC | 17 ms
8,000 KB |
testcase_16 | AC | 16 ms
8,040 KB |
testcase_17 | AC | 16 ms
8,020 KB |
testcase_18 | AC | 17 ms
8,136 KB |
testcase_19 | AC | 16 ms
8,060 KB |
testcase_20 | AC | 17 ms
8,096 KB |
testcase_21 | AC | 16 ms
8,056 KB |
testcase_22 | AC | 16 ms
8,000 KB |
testcase_23 | AC | 16 ms
7,992 KB |
testcase_24 | AC | 16 ms
8,200 KB |
testcase_25 | AC | 16 ms
8,092 KB |
testcase_26 | AC | 17 ms
8,148 KB |
testcase_27 | AC | 17 ms
8,076 KB |
testcase_28 | AC | 17 ms
8,056 KB |
testcase_29 | AC | 17 ms
8,060 KB |
testcase_30 | AC | 16 ms
8,076 KB |
testcase_31 | AC | 17 ms
8,100 KB |
testcase_32 | AC | 16 ms
8,148 KB |
testcase_33 | AC | 17 ms
8,084 KB |
testcase_34 | AC | 16 ms
8,196 KB |
testcase_35 | AC | 16 ms
8,032 KB |
testcase_36 | AC | 17 ms
8,136 KB |
testcase_37 | AC | 17 ms
8,140 KB |
testcase_38 | AC | 18 ms
8,060 KB |
testcase_39 | AC | 17 ms
8,036 KB |
testcase_40 | AC | 16 ms
8,148 KB |
testcase_41 | AC | 17 ms
8,140 KB |
testcase_42 | AC | 17 ms
8,156 KB |
testcase_43 | AC | 21 ms
8,732 KB |
testcase_44 | AC | 18 ms
8,552 KB |
testcase_45 | AC | 18 ms
8,444 KB |
testcase_46 | AC | 21 ms
8,812 KB |
testcase_47 | AC | 19 ms
8,552 KB |
testcase_48 | AC | 20 ms
8,640 KB |
testcase_49 | AC | 17 ms
8,036 KB |
testcase_50 | AC | 22 ms
8,856 KB |
testcase_51 | AC | 21 ms
8,856 KB |
testcase_52 | AC | 22 ms
8,744 KB |
testcase_53 | AC | 20 ms
8,848 KB |
testcase_54 | AC | 22 ms
8,772 KB |
testcase_55 | AC | 21 ms
8,848 KB |
testcase_56 | AC | 17 ms
8,148 KB |
testcase_57 | AC | 19 ms
8,732 KB |
testcase_58 | AC | 19 ms
8,728 KB |
testcase_59 | AC | 16 ms
8,124 KB |
testcase_60 | AC | 18 ms
8,056 KB |
testcase_61 | AC | 21 ms
8,820 KB |
testcase_62 | AC | 17 ms
8,152 KB |
testcase_63 | AC | 76 ms
14,096 KB |
testcase_64 | AC | 31 ms
9,792 KB |
testcase_65 | AC | 55 ms
12,248 KB |
testcase_66 | AC | 46 ms
11,624 KB |
testcase_67 | AC | 28 ms
9,440 KB |
testcase_68 | AC | 48 ms
11,724 KB |
testcase_69 | AC | 59 ms
12,712 KB |
testcase_70 | AC | 35 ms
10,244 KB |
testcase_71 | AC | 30 ms
9,664 KB |
testcase_72 | AC | 60 ms
12,788 KB |
testcase_73 | AC | 33 ms
9,916 KB |
testcase_74 | AC | 57 ms
12,636 KB |
testcase_75 | AC | 46 ms
11,684 KB |
testcase_76 | AC | 23 ms
8,848 KB |
testcase_77 | AC | 41 ms
10,740 KB |
testcase_78 | AC | 73 ms
13,508 KB |
testcase_79 | AC | 70 ms
13,644 KB |
testcase_80 | AC | 62 ms
13,004 KB |
testcase_81 | AC | 70 ms
13,792 KB |
testcase_82 | AC | 67 ms
13,388 KB |
testcase_83 | AC | 825 ms
62,948 KB |
testcase_84 | AC | 805 ms
60,696 KB |
testcase_85 | AC | 458 ms
40,064 KB |
testcase_86 | AC | 700 ms
55,520 KB |
testcase_87 | AC | 805 ms
58,212 KB |
testcase_88 | AC | 106 ms
16,260 KB |
testcase_89 | AC | 824 ms
61,544 KB |
testcase_90 | AC | 493 ms
41,632 KB |
testcase_91 | AC | 409 ms
35,432 KB |
testcase_92 | AC | 188 ms
23,828 KB |
testcase_93 | AC | 638 ms
49,212 KB |
testcase_94 | AC | 559 ms
45,592 KB |
testcase_95 | AC | 552 ms
45,624 KB |
testcase_96 | AC | 782 ms
59,156 KB |
testcase_97 | AC | 307 ms
31,760 KB |
testcase_98 | AC | 773 ms
59,728 KB |
testcase_99 | AC | 429 ms
38,896 KB |
testcase_100 | AC | 828 ms
62,880 KB |
testcase_101 | AC | 172 ms
22,508 KB |
testcase_102 | AC | 88 ms
15,012 KB |
testcase_103 | AC | 188 ms
23,700 KB |
testcase_104 | AC | 250 ms
28,436 KB |
testcase_105 | AC | 709 ms
48,296 KB |
testcase_106 | AC | 334 ms
33,636 KB |
testcase_107 | AC | 822 ms
61,660 KB |
testcase_108 | AC | 779 ms
62,028 KB |
testcase_109 | AC | 615 ms
48,844 KB |
testcase_110 | AC | 528 ms
45,128 KB |
testcase_111 | AC | 599 ms
47,488 KB |
testcase_112 | AC | 238 ms
27,540 KB |
testcase_113 | AC | 533 ms
44,276 KB |
testcase_114 | AC | 323 ms
33,008 KB |
testcase_115 | AC | 110 ms
16,956 KB |
testcase_116 | AC | 400 ms
36,284 KB |
testcase_117 | AC | 248 ms
27,592 KB |
testcase_118 | AC | 774 ms
59,992 KB |
testcase_119 | AC | 433 ms
38,592 KB |
testcase_120 | AC | 741 ms
58,492 KB |
testcase_121 | AC | 234 ms
25,088 KB |
testcase_122 | AC | 392 ms
35,932 KB |
testcase_123 | AC | 16 ms
8,196 KB |
testcase_124 | AC | 820 ms
73,732 KB |
testcase_125 | AC | 824 ms
73,600 KB |
ソースコード
import sys sys.setrecursionlimit(10**6) def construct(G, N): P = [0]*N G0 = [[] for i in range(N)] V = [] lb = [0]*N def dfs(v, p): P[v] = p V.append(v) lb[v] = len(V) for w in G[v]: if w == p: continue if lb[w]: if lb[v] < lb[w]: G0[v].append(w) continue dfs(w, v) dfs(0, -1) B = [] ap = [0]*N used = [0]*N first = 1 used[0] = 1 for u in V: if not used[u]: p = P[u] B.append((u, p) if u < p else (p, u)) if len(G[u]) > 1: ap[u] = 1 if len(G[p]) > 1: ap[p] = 1 cycle = 0 for v in G0[u]: w = v while w != u and not used[w]: used[w] = 1 w = P[w] if w == u: cycle = 1 if cycle: if not first: ap[u] = 1 first = 0 A = [v for v in range(N) if ap[v]] return B n=int(input()) g=[[] for _ in range(n)] bridge=[] for _ in range(n): a,b=map(int,input().split()) g[a-1].append(b-1) g[b-1].append(a-1) if a>b: a,b=b,a bridge.append((a-1,b-1)) l=construct(g,n) l=set(l) ans=[] for i in range(n): if bridge[i] not in l: ans.append(i+1) print(len(ans)) print(*ans)