C++ Programming Code Examples
C++ > Recursion Code Examples
C++ program to find factorial using recursion
/* C++ program to find factorial using recursion
Write a program to find the Factorial using recursive function. User will enter a number and program should display result.
User enters a number which stores in variable 'num'
Then number passes as argument in function call
A static variable is used to check that how many times function is called
When base case becomes true if(statement) then function returns result to main */
#include<iostream>
using namespace std;
int recursive_function(int n){
static int i=1;// to make one time initialization
cout<<i<<" : time"<<endl; // counting the function calls
if(n==1){
return 1;//base case
}
else{
i++;
return n=n*recursive_function(n-1);
}
}
int main(){
cout<<"Enter to number to find Factorial: ";
int num;
cin>>num;
num=recursive_function(num); // function call
cout<<"\n\n\n\t\t\tFactorial of number is: "<<num;
cout<<"\n\n\n\n\n";
return 0;
}
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