Convert Integer to String

#include <stdio.h>

void print_integer_as_string(int num) {
    // Your logic here
    char res[20];
    int i = 0;
    if(num == 0)
    {
        printf("0");
        return;
    }
    if(num<0)
    {
        num *= -1;
        printf("- ");
    }

    while(num)
    {
        res[i++] = num % 10;
        num = num/10;
    }

    for(int j=i-1;j>=0;j--)
    {
        printf("%c ",(char)(res[j]+48));
    }
}

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