結果
問題 | No.2494 Sum within Components |
ユーザー | misonikomipan |
提出日時 | 2023-10-08 01:17:14 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 1,057 ms / 2,000 ms |
コード長 | 2,506 bytes |
コンパイル時間 | 505 ms |
コンパイル使用メモリ | 12,672 KB |
実行使用メモリ | 56,936 KB |
最終ジャッジ日時 | 2024-07-26 17:59:14 |
合計ジャッジ時間 | 6,689 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 38 ms
11,644 KB |
testcase_01 | AC | 40 ms
11,644 KB |
testcase_02 | AC | 38 ms
11,640 KB |
testcase_03 | AC | 38 ms
11,644 KB |
testcase_04 | AC | 38 ms
11,644 KB |
testcase_05 | AC | 38 ms
11,776 KB |
testcase_06 | AC | 38 ms
11,776 KB |
testcase_07 | AC | 38 ms
11,644 KB |
testcase_08 | AC | 39 ms
11,644 KB |
testcase_09 | AC | 111 ms
12,284 KB |
testcase_10 | AC | 116 ms
15,608 KB |
testcase_11 | AC | 66 ms
13,688 KB |
testcase_12 | AC | 136 ms
14,972 KB |
testcase_13 | AC | 99 ms
14,204 KB |
testcase_14 | AC | 864 ms
34,856 KB |
testcase_15 | AC | 931 ms
27,660 KB |
testcase_16 | AC | 463 ms
39,712 KB |
testcase_17 | AC | 485 ms
56,936 KB |
testcase_18 | AC | 543 ms
56,848 KB |
testcase_19 | AC | 1,057 ms
49,152 KB |
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 atcoder.dsu import DSU def int1(n): return int(n) - 1 MOD = 998244353 N, M = map(int, input().split()) UF = DSU(N) A = list(map(int, input().split())) for _ in range(M): u, v = map(int1, input().split()) UF.merge(u, v) groups = UF.groups() ans = 1 for G in groups: npow = len(G) base = 0 for g in G: base += A[g] ans *= pow(base, npow, MOD) ans %= MOD print(ans)