摘要： Crazy SearchTime Limit:1000MSMemory Limit:65536KTotal Submissions:21585Accepted:6101DescriptionMany people like to solve hard puzzles some of which may lead them to madness. One such puzzle could be finding a hidden prime number in a given text. Such number could be the number of different substring 阅读全文

摘要： 487-3279Time Limit:2000MSMemory Limit:65536KTotal Submissions:232876Accepted:40603DescriptionBusinesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the University of Waterloo by diali 阅读全文