Kattis Problem Solution To Quality-Adjusted Life-Quality

#include<iostream>
using namespace std;
int main(int argc, char const *argv[])
{
int n;
float q,y,qaly = 0.0;
cin>>n;
while(n--){
cin>>q>>y;
qaly+=(q*y);
}
cout<<qaly;
return 0;
}

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