535 Encode and Decode TinyURL 编码和解码精简URL地址
详见:https://leetcode.com/problems/encode-and-decode-tinyurl/description/
C++:
class Solution { public: // Encodes a URL to a shortened URL. string encode(string longUrl) { url.push_back(longUrl); return "http://tinyurl.com/" + to_string(url.size() - 1); } // Decodes a shortened URL to its original URL. string decode(string shortUrl) { auto pos = shortUrl.find_last_of("/"); return url[stoi(shortUrl.substr(pos + 1))]; } private: vector<string> url; }; // Your Solution object will be instantiated and called as such: // Solution solution; // solution.decode(solution.encode(url));
参考:http://www.cnblogs.com/grandyang/p/6562209.html