Whats wrong with this code
#include
using namespace std;
int main() {
int t;
cin>>t;
while(t–){
long long n,k, prod1 = 1, prod2 = 1;
cin>>n>>k;
n = n-1;
k = k-1;
k = min(k, n-k);
long long temp = n;
for(int i = 1 ; i<=k; i++){
prod1 *= temp;
prod2 *= i;
temp--;
}
cout<<(prod1/prod2)<<endl;
}
return 0;
}
Hey your variables ill overflow, its clearly mentioned that “You can assume that this number exceeds the limit of a signed 64-bit integer.”
Use this instead :https://ide.codingblocks.com/s/323955
Also from next time please give your code in Coding blocks IDE.
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