/**
 * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
 *
 * 
 * @param strs string字符串一维数组 
 * @param strsLen int strs数组长度
 * @return string字符串
 */
char* longestCommonPrefix(char** strs, int strsLen ) {
    // write code here
    if (strsLen == 0)
        return "";
    char *initial = strs[0];
    for (int i = 1; i < strsLen; i++)
    {
        if (initial[0] == strs[i][0])
        {
            for (int j = 1; initial[j] != '\0'; j++)
            {
                if (initial[j] != strs[i][j])
                {
                    initial[j] = '\0';
                }
            }
        }else {
            return "";
        }
    }
    return initial;
}