結果
問題 | No.1254 補強への架け橋 |
ユーザー | 👑 rin204 |
提出日時 | 2022-01-27 22:20:57 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 476 ms / 2,000 ms |
コード長 | 2,177 bytes |
コンパイル時間 | 682 ms |
コンパイル使用メモリ | 82,176 KB |
実行使用メモリ | 108,724 KB |
最終ジャッジ日時 | 2024-06-07 19:59:41 |
合計ジャッジ時間 | 28,919 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 39 ms
52,096 KB |
testcase_01 | AC | 41 ms
52,736 KB |
testcase_02 | AC | 40 ms
52,480 KB |
testcase_03 | AC | 40 ms
52,480 KB |
testcase_04 | AC | 39 ms
51,968 KB |
testcase_05 | AC | 41 ms
52,224 KB |
testcase_06 | AC | 39 ms
52,352 KB |
testcase_07 | AC | 39 ms
52,096 KB |
testcase_08 | AC | 39 ms
52,096 KB |
testcase_09 | AC | 40 ms
52,352 KB |
testcase_10 | AC | 40 ms
52,224 KB |
testcase_11 | AC | 40 ms
52,224 KB |
testcase_12 | AC | 40 ms
52,480 KB |
testcase_13 | AC | 41 ms
52,608 KB |
testcase_14 | AC | 43 ms
52,864 KB |
testcase_15 | AC | 40 ms
52,352 KB |
testcase_16 | AC | 40 ms
52,352 KB |
testcase_17 | AC | 38 ms
52,224 KB |
testcase_18 | AC | 39 ms
52,224 KB |
testcase_19 | AC | 38 ms
52,096 KB |
testcase_20 | AC | 41 ms
52,736 KB |
testcase_21 | AC | 39 ms
52,480 KB |
testcase_22 | AC | 41 ms
52,736 KB |
testcase_23 | AC | 41 ms
52,608 KB |
testcase_24 | AC | 41 ms
52,736 KB |
testcase_25 | AC | 40 ms
52,352 KB |
testcase_26 | AC | 40 ms
52,864 KB |
testcase_27 | AC | 42 ms
52,864 KB |
testcase_28 | AC | 41 ms
52,864 KB |
testcase_29 | AC | 40 ms
52,480 KB |
testcase_30 | AC | 40 ms
52,736 KB |
testcase_31 | AC | 41 ms
52,480 KB |
testcase_32 | AC | 39 ms
52,352 KB |
testcase_33 | AC | 43 ms
52,736 KB |
testcase_34 | AC | 42 ms
53,376 KB |
testcase_35 | AC | 42 ms
52,864 KB |
testcase_36 | AC | 41 ms
52,864 KB |
testcase_37 | AC | 41 ms
52,864 KB |
testcase_38 | AC | 43 ms
52,736 KB |
testcase_39 | AC | 41 ms
52,480 KB |
testcase_40 | AC | 40 ms
52,864 KB |
testcase_41 | AC | 41 ms
52,608 KB |
testcase_42 | AC | 40 ms
52,608 KB |
testcase_43 | AC | 70 ms
67,712 KB |
testcase_44 | AC | 53 ms
60,288 KB |
testcase_45 | AC | 51 ms
59,392 KB |
testcase_46 | AC | 64 ms
65,152 KB |
testcase_47 | AC | 56 ms
61,440 KB |
testcase_48 | AC | 61 ms
63,872 KB |
testcase_49 | AC | 42 ms
53,248 KB |
testcase_50 | AC | 70 ms
67,456 KB |
testcase_51 | AC | 68 ms
67,200 KB |
testcase_52 | AC | 76 ms
67,200 KB |
testcase_53 | AC | 62 ms
65,408 KB |
testcase_54 | AC | 68 ms
66,944 KB |
testcase_55 | AC | 64 ms
65,536 KB |
testcase_56 | AC | 45 ms
53,504 KB |
testcase_57 | AC | 63 ms
63,616 KB |
testcase_58 | AC | 62 ms
63,872 KB |
testcase_59 | AC | 43 ms
52,864 KB |
testcase_60 | AC | 50 ms
59,008 KB |
testcase_61 | AC | 67 ms
65,920 KB |
testcase_62 | AC | 44 ms
53,632 KB |
testcase_63 | AC | 168 ms
78,080 KB |
testcase_64 | AC | 122 ms
77,056 KB |
testcase_65 | AC | 147 ms
77,952 KB |
testcase_66 | AC | 139 ms
77,568 KB |
testcase_67 | AC | 110 ms
76,544 KB |
testcase_68 | AC | 149 ms
77,824 KB |
testcase_69 | AC | 167 ms
77,952 KB |
testcase_70 | AC | 117 ms
76,544 KB |
testcase_71 | AC | 109 ms
76,672 KB |
testcase_72 | AC | 165 ms
78,208 KB |
testcase_73 | AC | 116 ms
76,800 KB |
testcase_74 | AC | 152 ms
78,208 KB |
testcase_75 | AC | 148 ms
78,208 KB |
testcase_76 | AC | 91 ms
76,032 KB |
testcase_77 | AC | 137 ms
77,568 KB |
testcase_78 | AC | 168 ms
78,592 KB |
testcase_79 | AC | 165 ms
78,592 KB |
testcase_80 | AC | 157 ms
78,208 KB |
testcase_81 | AC | 188 ms
79,304 KB |
testcase_82 | AC | 164 ms
78,592 KB |
testcase_83 | AC | 382 ms
96,128 KB |
testcase_84 | AC | 448 ms
97,376 KB |
testcase_85 | AC | 350 ms
89,300 KB |
testcase_86 | AC | 363 ms
93,568 KB |
testcase_87 | AC | 367 ms
94,720 KB |
testcase_88 | AC | 181 ms
79,772 KB |
testcase_89 | AC | 476 ms
97,428 KB |
testcase_90 | AC | 336 ms
89,616 KB |
testcase_91 | AC | 276 ms
86,288 KB |
testcase_92 | AC | 222 ms
82,440 KB |
testcase_93 | AC | 343 ms
92,416 KB |
testcase_94 | AC | 345 ms
91,936 KB |
testcase_95 | AC | 342 ms
91,904 KB |
testcase_96 | AC | 402 ms
96,304 KB |
testcase_97 | AC | 299 ms
86,536 KB |
testcase_98 | AC | 442 ms
96,840 KB |
testcase_99 | AC | 380 ms
90,176 KB |
testcase_100 | AC | 464 ms
98,204 KB |
testcase_101 | AC | 238 ms
82,288 KB |
testcase_102 | AC | 178 ms
79,224 KB |
testcase_103 | AC | 220 ms
82,048 KB |
testcase_104 | AC | 259 ms
84,992 KB |
testcase_105 | AC | 333 ms
92,800 KB |
testcase_106 | AC | 295 ms
86,656 KB |
testcase_107 | AC | 386 ms
95,360 KB |
testcase_108 | AC | 367 ms
95,616 KB |
testcase_109 | AC | 395 ms
93,128 KB |
testcase_110 | AC | 342 ms
91,264 KB |
testcase_111 | AC | 313 ms
90,880 KB |
testcase_112 | AC | 281 ms
84,756 KB |
testcase_113 | AC | 372 ms
91,496 KB |
testcase_114 | AC | 296 ms
86,360 KB |
testcase_115 | AC | 220 ms
80,508 KB |
testcase_116 | AC | 296 ms
87,680 KB |
testcase_117 | AC | 252 ms
84,064 KB |
testcase_118 | AC | 400 ms
95,648 KB |
testcase_119 | AC | 324 ms
89,088 KB |
testcase_120 | AC | 399 ms
94,740 KB |
testcase_121 | AC | 221 ms
82,304 KB |
testcase_122 | AC | 301 ms
87,680 KB |
testcase_123 | AC | 40 ms
52,096 KB |
testcase_124 | AC | 471 ms
107,856 KB |
testcase_125 | AC | 466 ms
108,724 KB |
ソースコード
class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n self.group = n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return self.group -= 1 if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x def size(self, x): return -self.parents[self.find(x)] def same(self, x, y): return self.find(x) == self.find(y) def members(self, x): root = self.find(x) return [i for i in range(self.n) if self.find(i) == root] def roots(self): return [i for i, x in enumerate(self.parents) if x < 0] def group_count(self): return self.group def all_group_members(self): dic = {r:[] for r in self.roots()} for i in range(self.n): dic[self.find(i)].append(i) return dic def __str__(self): return '\n'.join('{}: {}'.format(r, self.members(r)) for r in self.roots()) n = int(input()) edges = [[] for _ in range(n)] UF = UnionFind(n) for i in range(1, n + 1): a, b = map(int, input().split()) a -= 1 b -= 1 if UF.same(a, b): aa, bb, ii = a, b, i else: UF.union(a, b) edges[a].append((b, i)) edges[b].append((a, i)) used = [False] * n used[0] = True stack = [0] parent = [-1] * n bind = [-1] * n dist = [0] * n while stack: pos = stack.pop() for npos, i in edges[pos]: if used[npos]: continue used[npos] = True bind[npos] = i dist[npos] = dist[pos] + 1 parent[npos] = pos stack.append(npos) ans = [ii] if dist[aa] < dist[bb]: aa, bb = bb, aa while dist[aa] != dist[bb]: ans.append(bind[aa]) aa = parent[aa] while aa != bb: ans.append(bind[aa]) aa = parent[aa] ans.append(bind[bb]) bb = parent[bb] print(len(ans)) print(*ans)