indiewar's blogs(wust_lzl)

A - Discount Fare z=x+y/2z = x + y / 2z=x+y/2 include <bits/stdc++.h> using namespace std; #define rep(i,a,n) for (int i=a;i<n;i++) #define per(i,a,n) for (int i=n-1;i>=a;i--) #define pb...