[C#][LeetCode][Easy] 535. Encode and Decode TinyURL

題目:

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.

心得:

這題實務上的話我應該會用資料庫來存key,簡單易用不是嗎?
不過要小心的是不能使用流水號來當作tinyurl的參數,
這樣會有被猜出key的可能性,可能就隨機產生一個短的字串並檢查不能重複來當key

我的答案(轉base64):

 

我的答案(guid):

 



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