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3 1 1 1 1 1 1 2 1 1 1 3 1
1 2 -1
#include<stdio.h> //#include<bits/stdc++.h> #include<string.h> #include<iostream> #include<math.h> #include<sstream> #include<set> #include<queue> #include<map> #include<vector> #include<algorithm> #include<limits.h> #define inf 0x3fffffff #define lson l,m,rt<<1 #define rson m+1,r,rt<<1|1 #define LL long long using namespace std; int a; int main() { int t; int x,y,l,h; while(cin>>t) { while(t--) { cin>>x>>y>>l>>h; if(l%x==0) { h=h-(l/x-1)*y; if(h>=0) { cout<<l/x<<endl; } else { puts("-1"); } } else { h=h-(l/x)*y; if(h>=0) { cout<<l/x+1<<endl; } else { puts("-1"); } } } } return 0; }
2015苏州大学ACM-ICPC集训队选拔赛(1) 1008
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原文地址:http://www.cnblogs.com/yinghualuowu/p/5076893.html