#include<iostream>
using namespace std;
int fact(int n){
int fac=1;
for(int i=1;i<=n;i++){
fac=fac*i;
}
return fac;
}
int main(){
int n,r;
cout<<"Input n :"<<endl;
cin>>n;
cout<<"Input r :"<<endl;
cin>>r;
int nCr;
cout<<"The nCr value is :"<<endl;
nCr=fact(n)/(fact(n-r)*fact(r));
cout<<nCr<<endl;
return 0;
}Input : n = 5, r = 2
Output : 10
The value of 5C2 is 10
Input : n = 3, r = 1
Output : 3| Code Example |
|---|
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