Implement Custom strcmp function

Code

#include <stdio.h>

int custom_strcmp(const char *a, const char *b)
{
    // Your logic here
    int temp = 0;
    int count = 0;
    int k = 0;
    while (1)
    {

        if (*a == '\0')
        {
            if (*b == '\0')
            {
                return count;
            }
            else
            {
                temp = *a - *b;
                count += temp;
                ++b; 
            }
        }
        else
        {
            if (*b == '\0')
            {
                temp = *a - *b;
                count += temp;
                ++a;
                return count; 
            }
            else
            {
                temp = *a - *b;
                count += temp;
                ++a;
                ++b;
            }
        }
    }
    return count;
}

int main()
{
    char a[101], b[101];
    fgets(a, sizeof(a), stdin);
    fgets(b, sizeof(b), stdin);

    // Remove newline
    int i = 0;
    while (a[i])
    {
        if (a[i] == '\n')
        {
            a[i] = '\0';
            break;
        }
        i++;
    }
    i = 0;
    while (b[i])
    {
        if (b[i] == '\n')
        {
            b[i] = '\0';
            break;
        }
        i++;
    }

    printf("%d", custom_strcmp(a, b));
    return 0;
}

Solving Approach