結果
問題 | No.2494 Sum within Components |
ユーザー | Shirotsume |
提出日時 | 2023-10-06 21:27:52 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 308 ms / 2,000 ms |
コード長 | 2,267 bytes |
コンパイル時間 | 224 ms |
コンパイル使用メモリ | 82,304 KB |
実行使用メモリ | 131,720 KB |
最終ジャッジ日時 | 2024-07-26 15:43:32 |
合計ジャッジ時間 | 3,491 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 46 ms
56,192 KB |
testcase_01 | AC | 45 ms
55,936 KB |
testcase_02 | AC | 46 ms
56,192 KB |
testcase_03 | AC | 46 ms
55,936 KB |
testcase_04 | AC | 47 ms
56,064 KB |
testcase_05 | AC | 44 ms
55,936 KB |
testcase_06 | AC | 46 ms
55,936 KB |
testcase_07 | AC | 46 ms
56,192 KB |
testcase_08 | AC | 46 ms
55,936 KB |
testcase_09 | AC | 110 ms
78,464 KB |
testcase_10 | AC | 127 ms
80,512 KB |
testcase_11 | AC | 89 ms
77,952 KB |
testcase_12 | AC | 143 ms
79,216 KB |
testcase_13 | AC | 132 ms
78,916 KB |
testcase_14 | AC | 251 ms
99,328 KB |
testcase_15 | AC | 230 ms
92,160 KB |
testcase_16 | AC | 182 ms
99,068 KB |
testcase_17 | AC | 173 ms
131,720 KB |
testcase_18 | AC | 180 ms
112,612 KB |
testcase_19 | AC | 308 ms
115,624 KB |
ソースコード
import sys, time, random from collections import deque, Counter, defaultdict input = lambda: sys.stdin.readline().rstrip() ii = lambda: int(input()) mi = lambda: map(int, input().split()) li = lambda: list(mi()) inf = 2 ** 63 - 1 mod = 998244353 class dsu(): n=1 parent_or_size=[-1 for i in range(n)] def __init__(self,N): self.n=N self.num = N self.parent_or_size=[-1 for i in range(N)] def merge(self,a,b): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) assert 0<=b<self.n, "0<=b<n,b={0},n={1}".format(b,self.n) x=self.leader(a) y=self.leader(b) if x==y: return x self.num -= 1 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,b): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) assert 0<=b<self.n, "0<=b<n,b={0},n={1}".format(b,self.n) return self.leader(a)==self.leader(b) def leader(self,a): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) if (self.parent_or_size[a]<0): return a self.parent_or_size[a]=self.leader(self.parent_or_size[a]) return self.parent_or_size[a] def size(self,a): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) return -self.parent_or_size[self.leader(a)] def groups(self): leader_buf=[0 for i in range(self.n)] group_size=[0 for i in range(self.n)] for i in range(self.n): leader_buf[i]=self.leader(i) group_size[leader_buf[i]]+=1 result=[[] for i in range(self.n)] for i in range(self.n): result[leader_buf[i]].append(i) result2=[] for i in range(self.n): if len(result[i])>0: result2.append(result[i]) return result2 def count(self): return self.num n, m = mi() a = li() U = dsu(n) for _ in range(m): u, v = mi() u -= 1; v -= 1 U.merge(u, v) ans = 1 for v in U.groups(): cnt = 0 for x in v: cnt += a[x] ans *= pow(cnt, len(v), mod) ans %= mod print(ans)