結果
問題 | No.2563 色ごとのグループ |
ユーザー | oginoshikibu |
提出日時 | 2023-12-02 15:22:27 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,673 bytes |
コンパイル時間 | 329 ms |
コンパイル使用メモリ | 82,244 KB |
実行使用メモリ | 283,876 KB |
最終ジャッジ日時 | 2024-09-26 18:33:45 |
合計ジャッジ時間 | 6,994 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 58 ms
72,192 KB |
testcase_01 | AC | 56 ms
66,560 KB |
testcase_02 | AC | 58 ms
66,560 KB |
testcase_03 | AC | 59 ms
66,176 KB |
testcase_04 | AC | 60 ms
66,176 KB |
testcase_05 | AC | 58 ms
66,560 KB |
testcase_06 | AC | 59 ms
66,176 KB |
testcase_07 | AC | 58 ms
66,688 KB |
testcase_08 | AC | 59 ms
66,304 KB |
testcase_09 | AC | 58 ms
67,456 KB |
testcase_10 | AC | 54 ms
66,432 KB |
testcase_11 | AC | 57 ms
67,712 KB |
testcase_12 | AC | 58 ms
67,584 KB |
testcase_13 | AC | 58 ms
66,688 KB |
testcase_14 | AC | 96 ms
79,000 KB |
testcase_15 | AC | 97 ms
78,848 KB |
testcase_16 | AC | 95 ms
78,976 KB |
testcase_17 | AC | 96 ms
78,464 KB |
testcase_18 | AC | 87 ms
78,848 KB |
testcase_19 | AC | 98 ms
78,848 KB |
testcase_20 | AC | 443 ms
261,072 KB |
testcase_21 | AC | 175 ms
82,944 KB |
testcase_22 | AC | 140 ms
80,000 KB |
testcase_23 | AC | 169 ms
81,920 KB |
testcase_24 | TLE | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
ソースコード
import types _atcoder_code = """ # Python port of AtCoder Library. __version__ = '0.0.1' """ atcoder = types.ModuleType('atcoder') exec(_atcoder_code, atcoder.__dict__) _atcoder_dsu_code = """ import typing class DSU: ''' Implement (union by size) + (path halving) Reference: Zvi Galil and Giuseppe F. Italiano, Data structures and algorithms for disjoint set union problems ''' def __init__(self, n: int = 0) -> None: self._n = n self.parent_or_size = [-1] * n def merge(self, a: int, b: int) -> int: assert 0 <= a < self._n assert 0 <= b < self._n x = self.leader(a) y = self.leader(b) if x == y: return x if -self.parent_or_size[x] < -self.parent_or_size[y]: x, y = y, x self.parent_or_size[x] += self.parent_or_size[y] self.parent_or_size[y] = x return x def same(self, a: int, b: int) -> bool: assert 0 <= a < self._n assert 0 <= b < self._n return self.leader(a) == self.leader(b) def leader(self, a: int) -> int: assert 0 <= a < self._n parent = self.parent_or_size[a] while parent >= 0: if self.parent_or_size[parent] < 0: return parent self.parent_or_size[a], a, parent = ( self.parent_or_size[parent], self.parent_or_size[parent], self.parent_or_size[self.parent_or_size[parent]] ) return a def size(self, a: int) -> int: assert 0 <= a < self._n return -self.parent_or_size[self.leader(a)] def groups(self) -> typing.List[typing.List[int]]: leader_buf = [self.leader(i) for i in range(self._n)] result: typing.List[typing.List[int]] = [[] for _ in range(self._n)] for i in range(self._n): result[leader_buf[i]].append(i) return list(filter(lambda r: r, result)) """ atcoder.dsu = types.ModuleType('atcoder.dsu') exec(_atcoder_dsu_code, atcoder.dsu.__dict__) DSU = atcoder.dsu.DSU from collections import defaultdict # from atcoder.dsu import DSU n,m=map(int, input().split()) C=list(map(int, input().split())) Cnode=defaultdict(set) for i,c in enumerate(C): Cnode[c].add(i) Cedge=defaultdict(set) for _ in range(m): u,v=map(lambda x: int(x) - 1, input().split()) if C[u] == C[v]: Cedge[C[u]].add((u,v)) ans=0 for c in Cnode.keys(): dsu=DSU(n) for u,v in Cedge[c]: dsu.merge(u,v) node1=Cnode[c].pop() for u in Cnode[c]: if not dsu.same(u,node1): dsu.merge(u,node1) ans+=1 print(ans)