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 | 450 ms / 2,000 ms |
コード長 | 2,078 bytes |
コンパイル時間 | 152 ms |
コンパイル使用メモリ | 82,688 KB |
実行使用メモリ | 101,660 KB |
最終ジャッジ日時 | 2024-06-02 10:38:33 |
合計ジャッジ時間 | 23,409 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 36 ms
52,352 KB |
testcase_01 | AC | 36 ms
52,864 KB |
testcase_02 | AC | 35 ms
52,224 KB |
testcase_03 | AC | 34 ms
52,608 KB |
testcase_04 | AC | 150 ms
97,424 KB |
testcase_05 | AC | 175 ms
99,968 KB |
testcase_06 | AC | 34 ms
52,736 KB |
testcase_07 | AC | 34 ms
53,056 KB |
testcase_08 | AC | 34 ms
52,352 KB |
testcase_09 | AC | 34 ms
52,736 KB |
testcase_10 | AC | 318 ms
92,160 KB |
testcase_11 | AC | 281 ms
88,036 KB |
testcase_12 | AC | 272 ms
87,552 KB |
testcase_13 | AC | 414 ms
97,444 KB |
testcase_14 | AC | 374 ms
96,904 KB |
testcase_15 | AC | 230 ms
84,780 KB |
testcase_16 | AC | 243 ms
85,504 KB |
testcase_17 | AC | 357 ms
95,076 KB |
testcase_18 | AC | 141 ms
78,484 KB |
testcase_19 | AC | 265 ms
88,228 KB |
testcase_20 | AC | 302 ms
91,340 KB |
testcase_21 | AC | 270 ms
87,884 KB |
testcase_22 | AC | 125 ms
78,208 KB |
testcase_23 | AC | 321 ms
92,416 KB |
testcase_24 | AC | 188 ms
80,852 KB |
testcase_25 | AC | 275 ms
87,868 KB |
testcase_26 | AC | 342 ms
93,000 KB |
testcase_27 | AC | 233 ms
84,156 KB |
testcase_28 | AC | 395 ms
98,228 KB |
testcase_29 | AC | 335 ms
93,056 KB |
testcase_30 | AC | 168 ms
80,948 KB |
testcase_31 | AC | 368 ms
96,896 KB |
testcase_32 | AC | 342 ms
94,080 KB |
testcase_33 | AC | 269 ms
89,356 KB |
testcase_34 | AC | 304 ms
92,552 KB |
testcase_35 | AC | 279 ms
89,032 KB |
testcase_36 | AC | 165 ms
81,024 KB |
testcase_37 | AC | 176 ms
81,788 KB |
testcase_38 | AC | 325 ms
95,616 KB |
testcase_39 | AC | 216 ms
85,872 KB |
testcase_40 | AC | 211 ms
85,364 KB |
testcase_41 | AC | 295 ms
92,052 KB |
testcase_42 | AC | 241 ms
86,448 KB |
testcase_43 | AC | 245 ms
86,704 KB |
testcase_44 | AC | 248 ms
86,760 KB |
testcase_45 | AC | 207 ms
84,224 KB |
testcase_46 | AC | 161 ms
80,660 KB |
testcase_47 | AC | 143 ms
79,192 KB |
testcase_48 | AC | 338 ms
95,596 KB |
testcase_49 | AC | 102 ms
78,132 KB |
testcase_50 | AC | 33 ms
52,736 KB |
testcase_51 | AC | 32 ms
52,608 KB |
testcase_52 | AC | 414 ms
101,280 KB |
testcase_53 | AC | 450 ms
101,660 KB |
07_evil_01.txt | AC | 774 ms
126,576 KB |
07_evil_02.txt | AC | 1,126 ms
149,000 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")