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 12:53:58 |
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 | 1,382 bytes |
コンパイル時間 | 149 ms |
コンパイル使用メモリ | 11,060 KB |
実行使用メモリ | 62,960 KB |
最終ジャッジ日時 | 2023-08-30 10:31:09 |
合計ジャッジ時間 | 33,761 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge15 |
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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 | 16 ms
8,072 KB |
testcase_01 | AC | 17 ms
8,132 KB |
testcase_02 | AC | 17 ms
8,024 KB |
testcase_03 | AC | 17 ms
8,004 KB |
testcase_04 | AC | 16 ms
8,004 KB |
testcase_05 | AC | 17 ms
8,112 KB |
testcase_06 | AC | 16 ms
8,100 KB |
testcase_07 | AC | 16 ms
8,112 KB |
testcase_08 | AC | 16 ms
8,112 KB |
testcase_09 | AC | 16 ms
8,180 KB |
testcase_10 | AC | 17 ms
8,176 KB |
testcase_11 | AC | 17 ms
8,132 KB |
testcase_12 | AC | 16 ms
8,116 KB |
testcase_13 | AC | 17 ms
8,084 KB |
testcase_14 | AC | 16 ms
8,080 KB |
testcase_15 | AC | 16 ms
8,132 KB |
testcase_16 | AC | 16 ms
8,004 KB |
testcase_17 | AC | 16 ms
8,180 KB |
testcase_18 | AC | 16 ms
8,132 KB |
testcase_19 | AC | 17 ms
8,104 KB |
testcase_20 | AC | 17 ms
8,124 KB |
testcase_21 | AC | 17 ms
8,172 KB |
testcase_22 | AC | 17 ms
8,072 KB |
testcase_23 | AC | 16 ms
8,188 KB |
testcase_24 | AC | 17 ms
8,068 KB |
testcase_25 | AC | 17 ms
8,236 KB |
testcase_26 | AC | 17 ms
8,120 KB |
testcase_27 | AC | 16 ms
8,004 KB |
testcase_28 | AC | 16 ms
8,032 KB |
testcase_29 | AC | 16 ms
8,088 KB |
testcase_30 | AC | 16 ms
8,108 KB |
testcase_31 | AC | 16 ms
8,124 KB |
testcase_32 | AC | 16 ms
8,100 KB |
testcase_33 | AC | 16 ms
8,076 KB |
testcase_34 | AC | 17 ms
8,028 KB |
testcase_35 | AC | 17 ms
8,184 KB |
testcase_36 | AC | 16 ms
8,044 KB |
testcase_37 | AC | 17 ms
8,064 KB |
testcase_38 | AC | 17 ms
8,072 KB |
testcase_39 | AC | 17 ms
8,032 KB |
testcase_40 | AC | 17 ms
8,032 KB |
testcase_41 | AC | 16 ms
8,172 KB |
testcase_42 | AC | 17 ms
8,072 KB |
testcase_43 | AC | 21 ms
8,824 KB |
testcase_44 | AC | 18 ms
8,168 KB |
testcase_45 | AC | 18 ms
8,032 KB |
testcase_46 | AC | 21 ms
8,768 KB |
testcase_47 | AC | 19 ms
8,592 KB |
testcase_48 | AC | 20 ms
8,600 KB |
testcase_49 | AC | 16 ms
8,176 KB |
testcase_50 | AC | 21 ms
8,888 KB |
testcase_51 | AC | 21 ms
8,752 KB |
testcase_52 | AC | 22 ms
8,708 KB |
testcase_53 | AC | 21 ms
8,704 KB |
testcase_54 | AC | 22 ms
8,688 KB |
testcase_55 | AC | 20 ms
8,808 KB |
testcase_56 | AC | 17 ms
8,172 KB |
testcase_57 | AC | 20 ms
8,700 KB |
testcase_58 | AC | 20 ms
8,672 KB |
testcase_59 | AC | 17 ms
8,176 KB |
testcase_60 | AC | 18 ms
8,024 KB |
testcase_61 | AC | 21 ms
8,728 KB |
testcase_62 | AC | 17 ms
8,128 KB |
testcase_63 | AC | 74 ms
14,156 KB |
testcase_64 | AC | 31 ms
9,844 KB |
testcase_65 | AC | 52 ms
12,248 KB |
testcase_66 | AC | 44 ms
11,424 KB |
testcase_67 | AC | 28 ms
9,520 KB |
testcase_68 | AC | 48 ms
11,728 KB |
testcase_69 | AC | 57 ms
12,764 KB |
testcase_70 | AC | 34 ms
10,068 KB |
testcase_71 | AC | 30 ms
9,596 KB |
testcase_72 | AC | 59 ms
12,864 KB |
testcase_73 | AC | 32 ms
10,036 KB |
testcase_74 | AC | 56 ms
12,460 KB |
testcase_75 | AC | 45 ms
11,572 KB |
testcase_76 | AC | 22 ms
8,912 KB |
testcase_77 | AC | 40 ms
10,740 KB |
testcase_78 | AC | 67 ms
13,520 KB |
testcase_79 | AC | 69 ms
13,768 KB |
testcase_80 | AC | 62 ms
12,988 KB |
testcase_81 | AC | 71 ms
13,616 KB |
testcase_82 | AC | 67 ms
13,384 KB |
testcase_83 | AC | 841 ms
62,012 KB |
testcase_84 | AC | 806 ms
60,540 KB |
testcase_85 | AC | 459 ms
40,104 KB |
testcase_86 | AC | 695 ms
55,416 KB |
testcase_87 | AC | 788 ms
58,124 KB |
testcase_88 | AC | 101 ms
16,228 KB |
testcase_89 | AC | 830 ms
61,556 KB |
testcase_90 | AC | 504 ms
41,716 KB |
testcase_91 | AC | 398 ms
35,208 KB |
testcase_92 | AC | 194 ms
23,820 KB |
testcase_93 | AC | 679 ms
49,160 KB |
testcase_94 | AC | 572 ms
45,628 KB |
testcase_95 | AC | 570 ms
45,564 KB |
testcase_96 | AC | 820 ms
59,252 KB |
testcase_97 | AC | 326 ms
31,744 KB |
testcase_98 | AC | 826 ms
60,568 KB |
testcase_99 | AC | 466 ms
38,928 KB |
testcase_100 | AC | 878 ms
62,960 KB |
testcase_101 | AC | 173 ms
22,600 KB |
testcase_102 | AC | 89 ms
14,984 KB |
testcase_103 | AC | 193 ms
23,712 KB |
testcase_104 | AC | 276 ms
28,608 KB |
testcase_105 | AC | 668 ms
48,208 KB |
testcase_106 | AC | 356 ms
33,688 KB |
testcase_107 | AC | 857 ms
61,612 KB |
testcase_108 | AC | 815 ms
62,028 KB |
testcase_109 | AC | 652 ms
48,648 KB |
testcase_110 | AC | 567 ms
45,244 KB |
testcase_111 | AC | 631 ms
47,684 KB |
testcase_112 | AC | 243 ms
27,480 KB |
testcase_113 | AC | 560 ms
44,264 KB |
testcase_114 | AC | 332 ms
32,952 KB |
testcase_115 | AC | 109 ms
16,964 KB |
testcase_116 | AC | 427 ms
36,436 KB |
testcase_117 | AC | 249 ms
27,660 KB |
testcase_118 | AC | 816 ms
59,944 KB |
testcase_119 | AC | 461 ms
38,440 KB |
testcase_120 | AC | 781 ms
58,500 KB |
testcase_121 | AC | 218 ms
25,344 KB |
testcase_122 | AC | 413 ms
35,968 KB |
testcase_123 | AC | 16 ms
8,068 KB |
testcase_124 | RE | - |
testcase_125 | RE | - |
ソースコード
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)