Convert Integer to String

Code

#include <stdio.h>

void print_integer_as_string(int num) {
    int i;
    int max = 10;
    if(num == 0){
        printf("0");
        return;
    }
    // Print negative
    if(num < 0){
        printf("- ");
        num *= -1;
    }
    while(max <= num){
        max *= 10;
    }
    max /= 10;
    while(max != 1){
        int digit = num / max;
        printf("%d ", digit);
        num -= digit * max;
        max /= 10;
    }
    printf("%d", num);
}

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

Solving Approach