最长公共前缀#14

输入: ["flower","flow","flight"]
输出: "fl"

输入: ["dog","racecar","car"]
输出: ""
解释: 输入不存在公共前缀。

所有输入只包含小写字母 a-z 。

//C style

char* longestCommonPrefix(char** strs, int strsSize) {
    char *p = *strs;
    if (strsSize == 1) {
        return p;
    }
    if (p == NULL) {
        return "";
    }
    int j = 0;
    while(p[j] != '