結果
問題 | No.1640 簡単な色塗り |
ユーザー | 👑 rin204 |
提出日時 | 2022-01-26 16:19:10 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 565 ms / 2,000 ms |
コード長 | 2,078 bytes |
コンパイル時間 | 387 ms |
コンパイル使用メモリ | 87,008 KB |
実行使用メモリ | 104,888 KB |
最終ジャッジ日時 | 2023-08-24 21:18:32 |
合計ジャッジ時間 | 31,270 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge11 |
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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
71,092 KB |
testcase_01 | AC | 71 ms
71,368 KB |
testcase_02 | AC | 73 ms
71,020 KB |
testcase_03 | AC | 70 ms
71,064 KB |
testcase_04 | AC | 195 ms
95,488 KB |
testcase_05 | AC | 240 ms
100,824 KB |
testcase_06 | AC | 72 ms
71,372 KB |
testcase_07 | AC | 74 ms
71,188 KB |
testcase_08 | AC | 73 ms
71,312 KB |
testcase_09 | AC | 72 ms
71,024 KB |
testcase_10 | AC | 369 ms
93,048 KB |
testcase_11 | AC | 343 ms
91,836 KB |
testcase_12 | AC | 328 ms
90,868 KB |
testcase_13 | AC | 468 ms
101,248 KB |
testcase_14 | AC | 478 ms
101,244 KB |
testcase_15 | AC | 291 ms
87,828 KB |
testcase_16 | AC | 304 ms
88,188 KB |
testcase_17 | AC | 421 ms
97,420 KB |
testcase_18 | AC | 187 ms
81,124 KB |
testcase_19 | AC | 319 ms
89,256 KB |
testcase_20 | AC | 366 ms
92,308 KB |
testcase_21 | AC | 336 ms
91,492 KB |
testcase_22 | AC | 171 ms
80,128 KB |
testcase_23 | AC | 391 ms
95,848 KB |
testcase_24 | AC | 251 ms
84,368 KB |
testcase_25 | AC | 336 ms
90,512 KB |
testcase_26 | AC | 415 ms
96,732 KB |
testcase_27 | AC | 295 ms
87,624 KB |
testcase_28 | AC | 462 ms
100,352 KB |
testcase_29 | AC | 407 ms
95,892 KB |
testcase_30 | AC | 223 ms
82,572 KB |
testcase_31 | AC | 448 ms
99,864 KB |
testcase_32 | AC | 409 ms
96,548 KB |
testcase_33 | AC | 335 ms
92,680 KB |
testcase_34 | AC | 374 ms
94,824 KB |
testcase_35 | AC | 344 ms
91,972 KB |
testcase_36 | AC | 216 ms
82,336 KB |
testcase_37 | AC | 235 ms
84,640 KB |
testcase_38 | AC | 407 ms
97,260 KB |
testcase_39 | AC | 293 ms
88,152 KB |
testcase_40 | AC | 297 ms
88,188 KB |
testcase_41 | AC | 391 ms
96,048 KB |
testcase_42 | AC | 305 ms
88,956 KB |
testcase_43 | AC | 302 ms
89,184 KB |
testcase_44 | AC | 310 ms
88,732 KB |
testcase_45 | AC | 281 ms
86,976 KB |
testcase_46 | AC | 215 ms
83,316 KB |
testcase_47 | AC | 198 ms
82,508 KB |
testcase_48 | AC | 418 ms
98,960 KB |
testcase_49 | AC | 154 ms
79,840 KB |
testcase_50 | AC | 72 ms
71,156 KB |
testcase_51 | AC | 70 ms
71,200 KB |
testcase_52 | AC | 512 ms
104,576 KB |
testcase_53 | AC | 565 ms
104,888 KB |
07_evil_01.txt | AC | 912 ms
128,908 KB |
07_evil_02.txt | AC | 1,280 ms
151,792 KB |
ソースコード
class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n self.hasloop = [False] * 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: self.hasloop[x] = True return self.group -= 1 if self.parents[x] > self.parents[y]: x, y = y, x self.hasloop[x] |= self.hasloop[y] 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()) ab = [] UF = UnionFind(n) edges = [[] for _ in range(n)] ans = [-1] * n used = [False] * n stack = [] for i in range(n): a, b = map(int, input().split()) a -= 1 b -= 1 if UF.same(a, b): ans[i] = a + 1 stack.append(a) used[i] = True else: edges[a].append((b, i)) edges[b].append((a, i)) UF.union(a, b) for r in UF.roots(): if not UF.hasloop[r]: print("No") exit() print("Yes") while stack: pos = stack.pop() for npos, i in edges[pos]: if used[i]: continue used[i] = True ans[i] = npos + 1 stack.append(npos) print(*ans, sep="\n")