結果
問題 | No.2290 UnUnion Find |
ユーザー | H20 |
提出日時 | 2023-05-07 01:02:12 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 439 ms / 2,000 ms |
コード長 | 2,001 bytes |
コンパイル時間 | 197 ms |
コンパイル使用メモリ | 82,312 KB |
実行使用メモリ | 110,720 KB |
最終ジャッジ日時 | 2024-05-03 06:55:57 |
合計ジャッジ時間 | 21,588 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 45 ms
53,760 KB |
testcase_01 | AC | 43 ms
54,144 KB |
testcase_02 | AC | 255 ms
97,536 KB |
testcase_03 | AC | 286 ms
98,560 KB |
testcase_04 | AC | 283 ms
104,604 KB |
testcase_05 | AC | 295 ms
104,464 KB |
testcase_06 | AC | 291 ms
104,448 KB |
testcase_07 | AC | 291 ms
104,732 KB |
testcase_08 | AC | 289 ms
104,576 KB |
testcase_09 | AC | 285 ms
104,392 KB |
testcase_10 | AC | 293 ms
104,644 KB |
testcase_11 | AC | 291 ms
104,808 KB |
testcase_12 | AC | 288 ms
104,320 KB |
testcase_13 | AC | 291 ms
104,612 KB |
testcase_14 | AC | 299 ms
104,388 KB |
testcase_15 | AC | 293 ms
104,540 KB |
testcase_16 | AC | 296 ms
104,692 KB |
testcase_17 | AC | 290 ms
104,320 KB |
testcase_18 | AC | 297 ms
104,448 KB |
testcase_19 | AC | 426 ms
103,984 KB |
testcase_20 | AC | 397 ms
106,240 KB |
testcase_21 | AC | 343 ms
101,248 KB |
testcase_22 | AC | 379 ms
107,768 KB |
testcase_23 | AC | 389 ms
108,792 KB |
testcase_24 | AC | 403 ms
104,260 KB |
testcase_25 | AC | 379 ms
109,440 KB |
testcase_26 | AC | 397 ms
105,472 KB |
testcase_27 | AC | 439 ms
104,832 KB |
testcase_28 | AC | 386 ms
106,384 KB |
testcase_29 | AC | 433 ms
103,680 KB |
testcase_30 | AC | 361 ms
103,384 KB |
testcase_31 | AC | 430 ms
103,604 KB |
testcase_32 | AC | 376 ms
109,360 KB |
testcase_33 | AC | 416 ms
106,264 KB |
testcase_34 | AC | 385 ms
106,360 KB |
testcase_35 | AC | 427 ms
105,352 KB |
testcase_36 | AC | 381 ms
109,408 KB |
testcase_37 | AC | 408 ms
107,340 KB |
testcase_38 | AC | 385 ms
109,380 KB |
testcase_39 | AC | 393 ms
108,096 KB |
testcase_40 | AC | 431 ms
105,088 KB |
testcase_41 | AC | 372 ms
110,720 KB |
testcase_42 | AC | 419 ms
104,096 KB |
testcase_43 | AC | 417 ms
104,948 KB |
testcase_44 | AC | 300 ms
104,504 KB |
testcase_45 | AC | 295 ms
104,472 KB |
testcase_46 | AC | 293 ms
104,324 KB |
ソースコード
from collections import defaultdict class UnionFind(): def __init__(self, n): self.n = n self.root = n self.parents = [-1] * 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 if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x self.root-=1 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.root def all_group_members(self): group_members = defaultdict(list) for member in range(self.n): group_members[self.find(member)].append(member) return group_members def __str__(self): return '\n'.join(f'{r}: {m}' for r, m in self.all_group_members().items()) N,q = map(int, input().split()) Q = [list(map(int, input().split())) for _ in range(q)] uf = UnionFind(N) STACK = [] m1_cnt = 0 is_all_union = N==1 for q in Q: if len(q)==3: _,u,v = q if not is_all_union: if uf.group_count()==2 and not uf.same(u-1,v-1): is_all_union=True else: uf.union(u-1,v-1) else: _,v = q if is_all_union: m1_cnt+=1 else: STACK.append(v-1) for i in range(N): if not uf.same(0,i): nd = i+1 for s in STACK: if uf.same(0,s): print(nd) else: print(1) for _ in range(m1_cnt): print(-1)