Question

In 1-3 sentences, describe how you would "Print all the odd numbers from 0 to x", Recursively using C++

Answer 1

#include <iostream>

using namespace std;

void printOdds(int n){
    // checking n is greater than 0
    if(n>0){
        // makig recursive call with n-1
        printOdds(n-1);
        // checking n is odd
        if(n%2==1){
            // printing value of n
            cout<<n<<endl;
        }
    }
}

int main(){
   int n;
   cout<<"Enter an integer: ";
   cin>>n;
   
   cout<<"Odd numbers between 0 and "<<n<<" are:"<<endl;
   printOdds(n);
   return 0;
}