codechef HELLO - "hello hello" solution

codechef HELLO - "hello hello" : http://www.codechef.com/problems/HELLO

codechef HELLO - "hello hello" solution: http://ideone.com/RnU22b

#include <iostream>

#include <cstdio>

using namespace std;

int main() {

int t, u, n, m, c, no;

double r, d, a, b;

scanf("%d", &t);

while(t--) {

scanf("%lf%d%d", &d, &u, &n);

no=0;

b=d*u;

for(int i=0; i<n; i++) {

scanf("%d%lf%d", &m, &r, &c);

a=u*r+c/(double)m; 

if(a<b) { b=a; no=i+1; }

}

printf("%d\n", no);

}

return 0;

}

note: the minimum plan(a) that is lesser than actual monthly plan(b) would be helpful for chef, which is a<b, and print out that index(no)