#include<bits/stdc++.h> #define ll long long using namespace std; ll x,y,L,m,n; void Exgcd(ll … Continue reading 1631：【例 1】青蛙的约会
#include<bits/stdc++.h> #define ll long long using namespace std; ll x,y,L,m,n; void Exgcd(ll … Continue reading 1631：【例 1】青蛙的约会