TinyURL是一种URL简化服务, 比如:当你输入一个URL https://leetcode.com/problems/design-tinyurl
时,它将返回一个简化的URL http://tinyurl.com/4e9iAk
.
要求:设计一个 TinyURL 的加密 encode
和解密 decode
的方法。你的加密和解密算法如何设计和运作是没有限制的,你只需要保证一个URL可以被加密成一个TinyURL,并且这个TinyURL可以用解密方法恢复成原本的URL。
public class Codec { // Encodes a URL to a shortened URL. ???public static String encode(String longUrl) { ???????char[] charArray = longUrl.toCharArray(); ???????char[] charResult = new char[charArray.length]; ???????int i = 0; ???????for (char a : charArray) { ???????????charResult[i] = (char)(a^1); ???????????i++; ???????} ???????return new String(charResult); ???} ???// Decodes a shortened URL to its original URL. ???public ?static String decode(String shortUrl) { ???????return encode(shortUrl); ???}}// Your Codec object will be instantiated and called as such:// Codec codec = new Codec();// codec.decode(codec.encode(url));
力扣——TinyURL的加密与解密
原文地址:https://www.cnblogs.com/JAYPARK/p/10356559.html