Question

How to recursively count the digits of a number in C++

Answer 1

#include <iostream>

using namespace std;

int count_digits(int n) {
    static int counter = 0;

    if (n != 0) {
        counter++;
        count_digits(n/10);
    }

    return counter;
}
  
int main() 
{ 
    int n = 68359;
    
    cout << count_digits(n);
    
    return 0; 
}



/*

5

*/

 

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