Question

Implement a program that will count from N (provided by the user) to 1 and by the end of
it show the following message: I’ve learned how to use recursion!. The recursive
function should be responsible to print out the recursion message, not the main (you are
required to do this program using recursive approach)

Answer 1

#include <iostream>

using namespace std;
void repeat(int n){
if(n == 0){
cout<<"I’ve learned how to use recursion!"<<endl;
return;
}
else{
repeat(n-1);
}
}
int main()
{
int n;
cout<<"Enter n value: ";
cin >> n;

repeat(n);
return 0;
}

Output:

sh-4.2$ g++ -o main *.cpp                                                                                                                                                                                                                              

sh-4.2$ main                                                                                                                                                                                                                                           

Enter n value: 10                                                                                                                                                                                                                                      

I’ve learned how to use recursion!