117. Convert Integer to String

#include <stdio.h>

void print_integer_as_string(int num) {
    if(num == 0) {
        printf("0");
        return; 
    }

    int unsign = 0;
    
    if(num < 0) {
        num = -num;
        unsign = 1;
    }
    char bits[16];
    int i = 0;
    while(num > 0) {
        bits[i++] = num % 10 + '0';
        num = num/10;
    }
    if(unsign) {
        printf("- ");
    }
    for(int k = i-1; k>= 0; k--) {
        printf("%c ", bits[k]);
    }
}

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