Convert Integer to String

Code

#include <stdio.h>

void print_integer_as_string(int num) {
    if(!num){
        printf("0");
        return;
    } 
    if(num<0){
        printf("- ");
        num=-num;
    } 
    int k=1;
    int n=num;
    while(n){
        k*=10;
        n/=10;
    }
    n=num;
    while(k/=10){
        printf("%d ",n/k);
        n%=k;
    }
}

int main() {
    int num;
    scanf("%d", &num);
    print_integer_as_string(num);
    return 0;
}

Solving Approach