Encode and Decode TinyURL问题及解法
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问题描述:
TinyURL is a URL shortening service where you enter a URL such as https://leetcode.com/problems/design-tinyurl
and it returns a short URL such as http://tinyurl.com/4e9iAk
.
Design the encode
and decode
methods for the TinyURL service. There is no restriction on how your encode/decode algorithm should work. You just need to ensure that a URL can be encoded to a tiny URL and the tiny URL can be decoded to the original URL.
本题要求求解字串加密解密算法,最简单的一种方式是加密解密均采用空算法。
过程详见代码:
class Solution {public: // Encodes a URL to a shortened URL. string encode(string longUrl) { return longUrl; } // Decodes a shortened URL to its original URL. string decode(string shortUrl) { return shortUrl; }};// Your Solution object will be instantiated and called as such:// Solution solution;// solution.decode(solution.encode(url));
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