不使用库函数，以最优的代码实现字符串比较函数int strcmp(char*source,char *dest),相等返回0，不相等返回-1

#include <stdio.h>
#include <stdlib.h>

int strcmp(char* source, char* dest)
{
    while (*source == *dest && *source != '\0' && *dest != '\0')
    {
        source++;
        dest++;
    }

    if (*source == '\0' && *dest == '\0')
        return 0;
    else
        return -1;
}

int main()
{
    char str1[] = "abcdef";
    char str2[] = "abcdeg";
    int result = strcmp(str1, str2);

    printf("Comparison result: %d\n", result);

    return 0;
}