Description: define InternetURL class to save a URL string like as www.bit.edu.cn ,and realize the demands as follows:
0. You CAN NOT use string in the program
1. You must use MyString you just defined in the exercise3.txt to save URL string;
2. Get domain name URL. For example, we can get www.bit.edu.cn www.bit.edu.cn/jwc/080329.html ;
3. Get top domain name URL. For example, we can get .cn www.bit.edu.cn/jwc/080329.html ;
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File list (Check if you may need any files):
44.cpp