HDU 4530

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <cstring>
 4 #include <algorithm>
 5 #define LL __int64
 6 
 7 using namespace std;
 8 
 9 int main(){
10     int T,Q,op;
11     double x,t;
12     scanf("%d",&T);
13     while(T--){
14         scanf("%lf",&x);
15         scanf("%d",&Q);
16         while(Q--){
17             scanf("%d%lf",&op,&t);
18             if(op==1){
19                 printf("%.2lf\n",t*60-t*x);
20             }
21             else if(op==2){
22                 printf("%.2lf\n",t*60/(1-x/60));
23             }
24             else {
25                 printf("%.2lf\n",12.0*3600*t/(x/60));
26             }
27         }
28     }
29     return 0;
30 }