思路: 二分. 实现: #include <bits/stdc++.h> using namespace std; typedef long long ll; const ll INF = 0x3f3f3f3f; ll n, x, y, z; bool check(ll m) { ll tmp = m * x - n * z; ) return true; else if (y > z && tmp <= m * (y - z)) return true; retu…

hohahola #pragma comment(linker, "/STACK:102400000,102400000") #include<stdio.h> #include<string.h> #include<stdlib.h> #include<vector> #include<algorithm> #include<iostream> #include<map> #include<qu…