LeetCode:535. Encode and Decode TinyURL

Note: This is a companion problem to the System Design problem: Design
TinyURL.
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.

Subscribe to see which companies asked this question.

Show Tags

Show Similar Problems

其实我不明白这道题的出题想干什么；
AC：

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));