Question

How to replace all ‘0’ in a number with specific digit in C++

Answer 1

#include <iostream>

using namespace std;

int convert_0_To_n__(int number, int d) { 
    if (number == 0) 
        return 0; 
  
    int digit = number % 10; 
    if (digit == 0) 
        digit = d; 
  
    return convert_0_To_n__(number / 10, d) * 10 + digit; 
} 
int convert_0_To_n(int number, int d) { 
    if (number == 0) 
        return d; 
    else 
        return convert_0_To_n__(number, d); 
} 

int main() 
{ 
    int number = 1080030; 
    
    cout << convert_0_To_n(number, 7); 
    
    return 0; 
}



/*
run:

1787737

*/

 

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