Educational Codeforces Round 76 (Rated for Div. 2) (A-F)题解
A.TwoRivalStudents小的位置向左走,大的位置向右走直到走到最左或最右端或者x为0。#includeusingnamespacestd;intmain(){intt;scanf("%d",&t);while(t--){intn,x,a,b;scanf("%d%d%d%d",&n,&x,&a,&b);if(a>b)swap(a,b);while(x>0&&a>1)x--,a--;whi