I am getting Wrong Answer although it is compiling and giving the right answer.
Problem Link
My code
#include
using namespace std;
int main(){
int n , q;
int i , j;
int l , r;
int x , y;
int sum = 0;
cin >> n >> q;
int a[n],b[n];
for(i = 1;i <= n;i++){
cin >> a[i];
}
for(j = 1;j <= n;j++){
cin >> b[j];
}
while(q--){
cin >> l >> r ;
sum = 0;
for(x = l; x <= r; x++){
sum = sum + (a[x]*b[x]);
}
cout << sum << endl;
}
}
And the submitted answer link
https://www.codechef.com/viewsolution/25029277