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 22:53:19 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 899 bytes |
コンパイル時間 | 1,737 ms |
コンパイル使用メモリ | 86,772 KB |
実行使用メモリ | 130,816 KB |
最終ジャッジ日時 | 2023-09-27 18:58:10 |
合計ジャッジ時間 | 30,995 ms |
ジャッジサーバーID (参考情報) |
judge14 / 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 | 73 ms
71,172 KB |
testcase_01 | AC | 65 ms
71,188 KB |
testcase_02 | AC | 66 ms
71,016 KB |
testcase_03 | AC | 66 ms
71,180 KB |
testcase_04 | AC | 66 ms
71,200 KB |
testcase_05 | AC | 64 ms
71,128 KB |
testcase_06 | AC | 67 ms
71,348 KB |
testcase_07 | AC | 66 ms
71,400 KB |
testcase_08 | AC | 67 ms
71,032 KB |
testcase_09 | AC | 65 ms
71,212 KB |
testcase_10 | AC | 66 ms
71,320 KB |
testcase_11 | AC | 66 ms
71,236 KB |
testcase_12 | AC | 64 ms
71,316 KB |
testcase_13 | AC | 65 ms
71,012 KB |
testcase_14 | AC | 62 ms
71,152 KB |
testcase_15 | AC | 69 ms
71,328 KB |
testcase_16 | AC | 65 ms
71,136 KB |
testcase_17 | AC | 67 ms
71,168 KB |
testcase_18 | AC | 67 ms
71,076 KB |
testcase_19 | AC | 67 ms
71,304 KB |
testcase_20 | AC | 67 ms
71,092 KB |
testcase_21 | AC | 65 ms
71,132 KB |
testcase_22 | AC | 68 ms
71,244 KB |
testcase_23 | AC | 66 ms
71,152 KB |
testcase_24 | AC | 65 ms
71,276 KB |
testcase_25 | AC | 66 ms
71,064 KB |
testcase_26 | AC | 67 ms
71,072 KB |
testcase_27 | AC | 65 ms
71,280 KB |
testcase_28 | AC | 67 ms
71,304 KB |
testcase_29 | AC | 66 ms
71,128 KB |
testcase_30 | AC | 66 ms
71,224 KB |
testcase_31 | AC | 66 ms
71,080 KB |
testcase_32 | AC | 66 ms
71,340 KB |
testcase_33 | AC | 68 ms
71,132 KB |
testcase_34 | AC | 67 ms
71,316 KB |
testcase_35 | AC | 67 ms
71,232 KB |
testcase_36 | AC | 68 ms
71,348 KB |
testcase_37 | AC | 68 ms
71,392 KB |
testcase_38 | AC | 67 ms
71,196 KB |
testcase_39 | AC | 67 ms
71,124 KB |
testcase_40 | AC | 65 ms
71,320 KB |
testcase_41 | AC | 68 ms
71,168 KB |
testcase_42 | AC | 71 ms
70,904 KB |
testcase_43 | AC | 82 ms
75,652 KB |
testcase_44 | AC | 71 ms
71,428 KB |
testcase_45 | AC | 71 ms
70,908 KB |
testcase_46 | AC | 81 ms
76,052 KB |
testcase_47 | AC | 71 ms
71,404 KB |
testcase_48 | AC | 83 ms
76,272 KB |
testcase_49 | AC | 67 ms
71,372 KB |
testcase_50 | AC | 83 ms
76,136 KB |
testcase_51 | AC | 87 ms
76,504 KB |
testcase_52 | AC | 92 ms
76,512 KB |
testcase_53 | AC | 82 ms
75,868 KB |
testcase_54 | AC | 88 ms
76,332 KB |
testcase_55 | AC | 81 ms
75,192 KB |
testcase_56 | AC | 68 ms
71,188 KB |
testcase_57 | AC | 74 ms
74,968 KB |
testcase_58 | AC | 74 ms
75,228 KB |
testcase_59 | AC | 65 ms
71,168 KB |
testcase_60 | AC | 69 ms
71,272 KB |
testcase_61 | AC | 78 ms
75,172 KB |
testcase_62 | AC | 67 ms
71,164 KB |
testcase_63 | AC | 159 ms
84,372 KB |
testcase_64 | AC | 124 ms
78,804 KB |
testcase_65 | AC | 148 ms
82,956 KB |
testcase_66 | AC | 142 ms
81,268 KB |
testcase_67 | AC | 117 ms
78,184 KB |
testcase_68 | AC | 143 ms
82,200 KB |
testcase_69 | AC | 153 ms
82,956 KB |
testcase_70 | AC | 135 ms
80,028 KB |
testcase_71 | AC | 116 ms
78,652 KB |
testcase_72 | AC | 146 ms
84,344 KB |
testcase_73 | AC | 130 ms
79,380 KB |
testcase_74 | AC | 145 ms
83,148 KB |
testcase_75 | AC | 140 ms
81,160 KB |
testcase_76 | AC | 102 ms
78,224 KB |
testcase_77 | AC | 146 ms
82,436 KB |
testcase_78 | AC | 172 ms
83,876 KB |
testcase_79 | AC | 162 ms
84,372 KB |
testcase_80 | AC | 156 ms
83,492 KB |
testcase_81 | AC | 160 ms
84,288 KB |
testcase_82 | AC | 151 ms
83,496 KB |
testcase_83 | AC | 499 ms
130,516 KB |
testcase_84 | AC | 471 ms
122,640 KB |
testcase_85 | AC | 330 ms
105,776 KB |
testcase_86 | AC | 427 ms
115,928 KB |
testcase_87 | AC | 488 ms
119,696 KB |
testcase_88 | AC | 175 ms
86,992 KB |
testcase_89 | AC | 511 ms
129,784 KB |
testcase_90 | AC | 358 ms
108,752 KB |
testcase_91 | AC | 300 ms
101,904 KB |
testcase_92 | AC | 213 ms
94,144 KB |
testcase_93 | AC | 394 ms
115,216 KB |
testcase_94 | AC | 371 ms
112,408 KB |
testcase_95 | AC | 385 ms
112,264 KB |
testcase_96 | AC | 471 ms
122,680 KB |
testcase_97 | AC | 270 ms
97,620 KB |
testcase_98 | AC | 491 ms
122,936 KB |
testcase_99 | AC | 334 ms
104,160 KB |
testcase_100 | AC | 530 ms
130,816 KB |
testcase_101 | AC | 217 ms
92,984 KB |
testcase_102 | AC | 162 ms
85,280 KB |
testcase_103 | AC | 208 ms
93,076 KB |
testcase_104 | AC | 276 ms
95,832 KB |
testcase_105 | AC | 430 ms
115,416 KB |
testcase_106 | AC | 283 ms
99,276 KB |
testcase_107 | AC | 490 ms
129,084 KB |
testcase_108 | AC | 505 ms
124,528 KB |
testcase_109 | AC | 398 ms
114,708 KB |
testcase_110 | AC | 408 ms
112,448 KB |
testcase_111 | AC | 410 ms
113,024 KB |
testcase_112 | AC | 254 ms
94,292 KB |
testcase_113 | AC | 418 ms
112,160 KB |
testcase_114 | AC | 293 ms
98,392 KB |
testcase_115 | AC | 184 ms
87,248 KB |
testcase_116 | AC | 326 ms
101,756 KB |
testcase_117 | AC | 254 ms
94,728 KB |
testcase_118 | AC | 492 ms
122,340 KB |
testcase_119 | AC | 329 ms
104,248 KB |
testcase_120 | AC | 461 ms
119,312 KB |
testcase_121 | AC | 246 ms
94,172 KB |
testcase_122 | AC | 308 ms
101,528 KB |
testcase_123 | AC | 68 ms
71,276 KB |
testcase_124 | RE | - |
testcase_125 | RE | - |
ソースコード
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)