Program to calculate the power of any number using recursion in C++

Solution:

#include <iostream>

using namespace std;

long int calculate(int x,int y)
{
    long int result=1;
    if(y == 0) 
        return result;
    else
        return x*(calculate(x,y-1));  
}
 
int main()
{
    int n,a,ans;
    cout<<"Enter a number ";
    cin>>n;
    cout<<"Enter power : ";
    cin>>a;
    ans=calculate(n,a);
    cout<<"Answer is "<<ans;
    return 0;
}

Output :

Enter a number 5
Enter power : 3
Answer is 125