Factstone Benchmark Amtel has announced that it will release a 128-bit computer chip by 2010, a 256-bit computer by 2020, and so on, continuing its strategy of doubling the word-size every ten years. (Amtel released a 64-bit computer in 2000, a 32-bi
https://www.cnblogs.com/HocRiser/p/8207295.html 安利! #include<iostream> #include<cstdio> #include<cmath> #include<cstdlib> #include<cstring> #include<algorithm> using namespace std; #define ll long long #define P 9982443
#include <bits/stdc++.h> using namespace std; #define int long long const int N=4000005; // 4 times! const int mod=998244353,g=3; int qpow(int p,int q) { int r = 1; for(; q; p*=p, p%=mod, q>>=1) if(q&1) r*=p, r%=mod; return r; } int inv(in