117. Convert Integer to String

#include <stdio.h>

void print_integer_as_string(int num) {
    // Your logic here
    char res[20];
    int i = 0, sign = 1;
    if(num < 0){
        sign =  -1 ;
        num*= sign;
    }else if(num == 0){
        putchar('0');
        return;
    }
    while(num > 0){
        res[i] = (num % 10) + '0';
        num /=10;
        i ++;
    }
    if(sign == -1){
        printf("- ");
        }
    while(i > 0){
        printf("%c ", res[--i]);
    }
}

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