Convert Integer to String

Code

#include <stdio.h>

void print_integer_as_string(int num) {
    // Your logic here
    char buffer[12];
    int i = 0;

    if (num == 0) {
        printf("0\n");
        return;
    }

    bool is_negative = num < 0;

    unsigned int u_num = num;
    if (is_negative) {
        u_num = -num;
    }

    while (u_num > 0) {
        buffer[i++] = (u_num % 10) + '0';
        u_num /= 10;
    }

    if (is_negative) {
        printf("-");
        if (i > 0) {
            printf(" ");
        }
    }

    if (i > 0) {
        printf("%c", buffer[--i]);
        
        while (i > 0) {
            printf(" %c", buffer[--i]);
        }
    }
}

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

Solving Approach