[leetcode] 14. 最长公共前缀

14. 最长公共前缀

超级简单。。。

class Solution {
public:string longestCommonPrefix(vector<string> &strs) {if (strs.size() == 0) {return "";}string common = strs[0];for (int i = 1; i < strs.size(); i++) {common = findCommon(strs[i], common);}return common;}string findCommon(string a, string b) {int len = min(a.size(), b.size());int k = 0;for (k = 0; k < len; k++) {if (a[k] != b[k]) {break;}}return a.substr(0, k);}
};