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 22:50:37 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 895 bytes |
コンパイル時間 | 282 ms |
コンパイル使用メモリ | 87,396 KB |
実行使用メモリ | 130,760 KB |
最終ジャッジ日時 | 2023-09-27 18:50:15 |
合計ジャッジ時間 | 35,010 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge14 |
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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
71,200 KB |
testcase_01 | AC | 74 ms
71,160 KB |
testcase_02 | AC | 73 ms
71,064 KB |
testcase_03 | AC | 72 ms
71,360 KB |
testcase_04 | AC | 70 ms
71,076 KB |
testcase_05 | AC | 72 ms
71,164 KB |
testcase_06 | AC | 70 ms
71,160 KB |
testcase_07 | AC | 72 ms
71,168 KB |
testcase_08 | AC | 71 ms
71,240 KB |
testcase_09 | AC | 73 ms
71,260 KB |
testcase_10 | AC | 73 ms
71,116 KB |
testcase_11 | AC | 73 ms
71,204 KB |
testcase_12 | AC | 71 ms
71,240 KB |
testcase_13 | AC | 74 ms
71,340 KB |
testcase_14 | AC | 73 ms
71,132 KB |
testcase_15 | AC | 73 ms
71,104 KB |
testcase_16 | AC | 72 ms
71,092 KB |
testcase_17 | AC | 70 ms
71,384 KB |
testcase_18 | AC | 72 ms
71,100 KB |
testcase_19 | AC | 73 ms
71,312 KB |
testcase_20 | AC | 74 ms
71,340 KB |
testcase_21 | AC | 73 ms
71,120 KB |
testcase_22 | AC | 72 ms
71,200 KB |
testcase_23 | AC | 74 ms
71,160 KB |
testcase_24 | AC | 75 ms
71,132 KB |
testcase_25 | AC | 74 ms
71,220 KB |
testcase_26 | AC | 74 ms
71,200 KB |
testcase_27 | AC | 73 ms
71,228 KB |
testcase_28 | AC | 73 ms
71,248 KB |
testcase_29 | AC | 73 ms
71,160 KB |
testcase_30 | AC | 72 ms
71,136 KB |
testcase_31 | AC | 74 ms
71,236 KB |
testcase_32 | AC | 71 ms
71,200 KB |
testcase_33 | AC | 72 ms
71,040 KB |
testcase_34 | AC | 73 ms
71,136 KB |
testcase_35 | AC | 74 ms
71,124 KB |
testcase_36 | AC | 74 ms
71,372 KB |
testcase_37 | AC | 73 ms
71,224 KB |
testcase_38 | AC | 72 ms
71,124 KB |
testcase_39 | AC | 72 ms
71,244 KB |
testcase_40 | AC | 76 ms
71,064 KB |
testcase_41 | AC | 74 ms
71,260 KB |
testcase_42 | AC | 73 ms
71,128 KB |
testcase_43 | AC | 90 ms
75,492 KB |
testcase_44 | AC | 77 ms
71,340 KB |
testcase_45 | AC | 77 ms
71,164 KB |
testcase_46 | AC | 90 ms
76,008 KB |
testcase_47 | AC | 80 ms
71,376 KB |
testcase_48 | AC | 95 ms
76,364 KB |
testcase_49 | AC | 73 ms
71,064 KB |
testcase_50 | AC | 94 ms
76,148 KB |
testcase_51 | AC | 97 ms
76,440 KB |
testcase_52 | AC | 102 ms
76,632 KB |
testcase_53 | AC | 91 ms
76,072 KB |
testcase_54 | AC | 99 ms
76,404 KB |
testcase_55 | AC | 90 ms
75,600 KB |
testcase_56 | AC | 76 ms
71,088 KB |
testcase_57 | AC | 86 ms
75,140 KB |
testcase_58 | AC | 85 ms
75,296 KB |
testcase_59 | AC | 74 ms
71,324 KB |
testcase_60 | AC | 78 ms
71,128 KB |
testcase_61 | AC | 90 ms
75,668 KB |
testcase_62 | AC | 76 ms
71,328 KB |
testcase_63 | AC | 180 ms
84,372 KB |
testcase_64 | AC | 142 ms
78,896 KB |
testcase_65 | AC | 170 ms
83,172 KB |
testcase_66 | AC | 160 ms
81,952 KB |
testcase_67 | AC | 131 ms
78,184 KB |
testcase_68 | AC | 163 ms
82,104 KB |
testcase_69 | AC | 177 ms
83,012 KB |
testcase_70 | AC | 153 ms
79,972 KB |
testcase_71 | AC | 133 ms
78,640 KB |
testcase_72 | AC | 167 ms
84,512 KB |
testcase_73 | AC | 145 ms
79,216 KB |
testcase_74 | AC | 164 ms
83,272 KB |
testcase_75 | AC | 161 ms
81,284 KB |
testcase_76 | AC | 113 ms
78,240 KB |
testcase_77 | AC | 166 ms
82,364 KB |
testcase_78 | AC | 194 ms
84,344 KB |
testcase_79 | AC | 177 ms
84,380 KB |
testcase_80 | AC | 172 ms
83,464 KB |
testcase_81 | AC | 175 ms
84,244 KB |
testcase_82 | AC | 170 ms
83,520 KB |
testcase_83 | AC | 590 ms
130,340 KB |
testcase_84 | AC | 550 ms
122,756 KB |
testcase_85 | AC | 389 ms
105,644 KB |
testcase_86 | AC | 511 ms
116,032 KB |
testcase_87 | AC | 563 ms
119,916 KB |
testcase_88 | AC | 200 ms
87,348 KB |
testcase_89 | AC | 577 ms
129,532 KB |
testcase_90 | AC | 412 ms
108,780 KB |
testcase_91 | AC | 352 ms
101,708 KB |
testcase_92 | AC | 244 ms
94,516 KB |
testcase_93 | AC | 473 ms
115,088 KB |
testcase_94 | AC | 445 ms
112,436 KB |
testcase_95 | AC | 456 ms
112,332 KB |
testcase_96 | AC | 550 ms
122,696 KB |
testcase_97 | AC | 324 ms
98,416 KB |
testcase_98 | AC | 566 ms
122,904 KB |
testcase_99 | AC | 386 ms
104,500 KB |
testcase_100 | AC | 607 ms
130,760 KB |
testcase_101 | AC | 256 ms
93,064 KB |
testcase_102 | AC | 188 ms
85,316 KB |
testcase_103 | AC | 247 ms
93,236 KB |
testcase_104 | AC | 316 ms
95,556 KB |
testcase_105 | AC | 487 ms
115,416 KB |
testcase_106 | AC | 330 ms
99,332 KB |
testcase_107 | AC | 564 ms
129,300 KB |
testcase_108 | AC | 564 ms
124,888 KB |
testcase_109 | AC | 475 ms
115,084 KB |
testcase_110 | AC | 445 ms
112,396 KB |
testcase_111 | AC | 456 ms
113,032 KB |
testcase_112 | AC | 283 ms
94,452 KB |
testcase_113 | AC | 451 ms
112,352 KB |
testcase_114 | AC | 327 ms
98,352 KB |
testcase_115 | AC | 205 ms
87,512 KB |
testcase_116 | AC | 362 ms
101,776 KB |
testcase_117 | AC | 278 ms
94,600 KB |
testcase_118 | AC | 573 ms
122,268 KB |
testcase_119 | AC | 387 ms
104,604 KB |
testcase_120 | AC | 529 ms
119,752 KB |
testcase_121 | AC | 266 ms
94,232 KB |
testcase_122 | AC | 360 ms
101,560 KB |
testcase_123 | AC | 72 ms
71,004 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) if low[w] > num[v]: ans.remove(bmap[(v, w)]) dfs2(0) print(len(ans)) print(*ans)