串练习--------535.TinyURL的加密和解密

题目：点这里

代码

class Solution {
public:

    // Encodes a URL to a shortened URL.
    string encode(string longUrl) {
        for(int i=0;i<longUrl.size();i++){
            longUrl[i]^=12;
        }
        return longUrl;
    }

    // Decodes a shortened URL to its original URL.
    string decode(string shortUrl) {
        for(int i=0;i<shortUrl.size();i++){
            shortUrl[i]^=12;
        }
    }
};

// Your Solution object will be instantiated and called as such:
// Solution solution;
// solution.decode(solution.encode(url));

反思

异或'^'可以对地址进行加密操作。