欧拉筛分解质因子板子
摘要：int p[N], pe[N], primes[N], cnt; void init() { for (int i = 2; i < N; i++ ) { if(!p[i]) p[i] = i, pe[i] = i, primes[++ cnt] = i; for (int j = 1; j <=
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posted @ 2023-02-18 10:24
02 2023 档案
D. Triangle Coloring （组合数）
摘要：#pragma GCC optimize ("O3") #pragma GCC optimize ("O2") #pragma GCC optimize ("O1") #include <bits/stdc++.h> typedef long long ll; typedef unsigned lo
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posted @ 2023-02-17 15:30
