Write a C++ program to find the sum of factorial of a given number using recursive function.

Write a C++ program to find the sum of factorial of a given number using recursive function.

Implementation of the above problem:

#include<iostream.h>

int factorial(int n)

{

int fact;

if(n==1 || n==0)

{

return 1;

}

fact=n*factorial(n-1); //recursive function

return fact;

}

int main()

{

int n,i,sum=0;

cout<<"\nEnter the number of terms\n";

cin >>n;

for(i=1;i<=n;i++)

{

sum+=factorial(i);

}

cout<<"Sum of factorial of first "<<n<<" number is "<<sum;

return 0;

}

Thanks

Mukesh Rajput