Convert Integer to String

Code

#include <stdio.h>

void print_integer_as_string(int num) {
    // Your logic here
    char res[100];
    if (num == 0) {
        printf("0");
        return;
    }
    bool neg = 0;
    if (num < 0) {
        // res += '-';
        neg = 1;
        num = -num;
    }
    int i = 0;
    while (num > 0){
        int tmp = num % 10;
        res[i] = tmp + '0';
        num = num / 10;
        ++i;
    }

    if (neg == 1) res[i++] = '-';

    res[i] = '\0';
    --i;
    while (i >= 0){
        printf("%c ", res[i]);
        --i;
    }
}

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

Solving Approach