結果
問題 | No.1254 補強への架け橋 |
ユーザー | nehan_der_thal |
提出日時 | 2020-10-09 22:52:34 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 1,118 bytes |
コンパイル時間 | 324 ms |
コンパイル使用メモリ | 86,704 KB |
実行使用メモリ | 141,920 KB |
最終ジャッジ日時 | 2023-09-27 18:56:29 |
合計ジャッジ時間 | 32,934 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge13 |
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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 | 72 ms
71,232 KB |
testcase_01 | AC | 71 ms
71,380 KB |
testcase_02 | AC | 72 ms
71,376 KB |
testcase_03 | AC | 72 ms
71,228 KB |
testcase_04 | AC | 72 ms
71,292 KB |
testcase_05 | AC | 72 ms
71,028 KB |
testcase_06 | AC | 71 ms
71,464 KB |
testcase_07 | AC | 73 ms
71,172 KB |
testcase_08 | AC | 73 ms
71,220 KB |
testcase_09 | AC | 72 ms
71,248 KB |
testcase_10 | AC | 71 ms
71,180 KB |
testcase_11 | AC | 72 ms
71,232 KB |
testcase_12 | AC | 71 ms
71,148 KB |
testcase_13 | AC | 74 ms
71,236 KB |
testcase_14 | AC | 73 ms
71,428 KB |
testcase_15 | AC | 72 ms
71,268 KB |
testcase_16 | AC | 73 ms
71,232 KB |
testcase_17 | AC | 71 ms
71,348 KB |
testcase_18 | AC | 73 ms
71,248 KB |
testcase_19 | AC | 72 ms
71,292 KB |
testcase_20 | AC | 73 ms
71,432 KB |
testcase_21 | AC | 73 ms
71,344 KB |
testcase_22 | AC | 72 ms
71,296 KB |
testcase_23 | AC | 72 ms
71,232 KB |
testcase_24 | AC | 72 ms
71,084 KB |
testcase_25 | AC | 73 ms
71,168 KB |
testcase_26 | AC | 74 ms
71,380 KB |
testcase_27 | AC | 74 ms
71,348 KB |
testcase_28 | AC | 73 ms
71,220 KB |
testcase_29 | AC | 74 ms
71,356 KB |
testcase_30 | AC | 73 ms
71,428 KB |
testcase_31 | AC | 73 ms
71,424 KB |
testcase_32 | AC | 73 ms
71,148 KB |
testcase_33 | AC | 74 ms
71,236 KB |
testcase_34 | AC | 75 ms
71,316 KB |
testcase_35 | AC | 75 ms
71,352 KB |
testcase_36 | AC | 73 ms
71,300 KB |
testcase_37 | AC | 73 ms
71,312 KB |
testcase_38 | AC | 76 ms
71,292 KB |
testcase_39 | AC | 72 ms
71,444 KB |
testcase_40 | AC | 72 ms
71,096 KB |
testcase_41 | AC | 72 ms
71,256 KB |
testcase_42 | AC | 73 ms
71,268 KB |
testcase_43 | AC | 88 ms
75,544 KB |
testcase_44 | AC | 77 ms
71,308 KB |
testcase_45 | AC | 78 ms
71,220 KB |
testcase_46 | AC | 87 ms
75,548 KB |
testcase_47 | AC | 80 ms
71,272 KB |
testcase_48 | AC | 89 ms
76,004 KB |
testcase_49 | AC | 74 ms
71,320 KB |
testcase_50 | AC | 90 ms
76,124 KB |
testcase_51 | AC | 92 ms
76,268 KB |
testcase_52 | AC | 95 ms
76,448 KB |
testcase_53 | AC | 87 ms
75,792 KB |
testcase_54 | AC | 96 ms
76,392 KB |
testcase_55 | AC | 86 ms
75,076 KB |
testcase_56 | AC | 75 ms
71,300 KB |
testcase_57 | AC | 83 ms
75,120 KB |
testcase_58 | AC | 84 ms
74,844 KB |
testcase_59 | AC | 74 ms
71,372 KB |
testcase_60 | AC | 76 ms
71,240 KB |
testcase_61 | AC | 86 ms
75,340 KB |
testcase_62 | AC | 76 ms
71,272 KB |
testcase_63 | AC | 171 ms
85,200 KB |
testcase_64 | AC | 131 ms
79,048 KB |
testcase_65 | AC | 160 ms
83,080 KB |
testcase_66 | AC | 155 ms
81,540 KB |
testcase_67 | AC | 125 ms
78,192 KB |
testcase_68 | AC | 153 ms
81,788 KB |
testcase_69 | AC | 166 ms
82,828 KB |
testcase_70 | AC | 140 ms
79,336 KB |
testcase_71 | AC | 126 ms
78,532 KB |
testcase_72 | AC | 157 ms
83,900 KB |
testcase_73 | AC | 133 ms
78,876 KB |
testcase_74 | AC | 157 ms
82,604 KB |
testcase_75 | AC | 154 ms
81,732 KB |
testcase_76 | AC | 110 ms
78,220 KB |
testcase_77 | AC | 151 ms
81,468 KB |
testcase_78 | AC | 178 ms
84,472 KB |
testcase_79 | AC | 168 ms
84,516 KB |
testcase_80 | AC | 160 ms
83,660 KB |
testcase_81 | AC | 168 ms
84,140 KB |
testcase_82 | AC | 161 ms
83,580 KB |
testcase_83 | AC | 542 ms
140,652 KB |
testcase_84 | AC | 525 ms
137,612 KB |
testcase_85 | AC | 359 ms
112,480 KB |
testcase_86 | AC | 464 ms
124,924 KB |
testcase_87 | AC | 505 ms
133,828 KB |
testcase_88 | AC | 193 ms
87,544 KB |
testcase_89 | AC | 539 ms
141,920 KB |
testcase_90 | AC | 381 ms
115,940 KB |
testcase_91 | AC | 341 ms
108,316 KB |
testcase_92 | AC | 231 ms
94,660 KB |
testcase_93 | AC | 448 ms
123,812 KB |
testcase_94 | AC | 427 ms
120,504 KB |
testcase_95 | AC | 428 ms
120,912 KB |
testcase_96 | AC | 504 ms
135,316 KB |
testcase_97 | AC | 299 ms
101,668 KB |
testcase_98 | AC | 549 ms
136,388 KB |
testcase_99 | AC | 363 ms
110,144 KB |
testcase_100 | AC | 563 ms
141,356 KB |
testcase_101 | AC | 233 ms
93,488 KB |
testcase_102 | AC | 179 ms
85,536 KB |
testcase_103 | AC | 241 ms
93,640 KB |
testcase_104 | AC | 283 ms
97,160 KB |
testcase_105 | AC | 454 ms
124,248 KB |
testcase_106 | AC | 320 ms
105,372 KB |
testcase_107 | AC | 559 ms
140,944 KB |
testcase_108 | AC | 537 ms
139,932 KB |
testcase_109 | AC | 448 ms
123,708 KB |
testcase_110 | AC | 431 ms
121,012 KB |
testcase_111 | AC | 450 ms
120,404 KB |
testcase_112 | AC | 262 ms
97,324 KB |
testcase_113 | AC | 418 ms
120,588 KB |
testcase_114 | AC | 309 ms
102,684 KB |
testcase_115 | AC | 202 ms
87,884 KB |
testcase_116 | AC | 337 ms
107,252 KB |
testcase_117 | AC | 262 ms
97,740 KB |
testcase_118 | AC | 545 ms
136,648 KB |
testcase_119 | AC | 356 ms
110,496 KB |
testcase_120 | AC | 503 ms
133,672 KB |
testcase_121 | AC | 251 ms
94,296 KB |
testcase_122 | AC | 340 ms
107,640 KB |
testcase_123 | AC | 72 ms
71,224 KB |
testcase_124 | RE | - |
testcase_125 | RE | - |
ソースコード
# 単純に橋となる辺を返す def bridge(G, N): result = set() label = [None]*N gen = 0 cost = [0]*N def dfs(u, p): nonlocal gen res = 0 for v in G[u]: if v == p: continue if label[v] is not None: if label[v] < label[u]: cost[v] += 1 res += 1 else: label[v] = gen; gen += 1 r = dfs(v, u) if r == 0: result.add((u, v) if u < v else (v, u)) res += r res -= cost[u] return res for v in range(N): if not label[v]: label[v] = gen; gen += 1 r = dfs(v, -1) assert r == 0, r return result N, = map(int, input().split()) G = [[] for _ in range(N)] E = dict() for i in range(N): a, b = map(int, input().split()) G[a-1].append(b-1) G[b-1].append(a-1) E[(a-1, b-1)] = i+1 E[(b-1, a-1)] = i+1 es = set([E[x] for x in bridge(G, N)]) R =[i for i in range(1, N+1) if i not in es] print(len(R)) print(*R)