玩物尚智

摘要： Maya CalendarTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 62297Accepted: 19221DescriptionDuring his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, professor discovered that the Maya civilization used a 365 day lon 阅读全文

摘要： DNA SortingTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 77786Accepted: 31201DescriptionOne measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence ``DAABEC'', this m 阅读全文

摘要： BiorhythmsTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 107569Accepted: 33365DescriptionSome people believe that there are three cycles in a person's life that start the day he or she is born. These three cycles are the physical, emotional, and intellectual cycles, and they have perio 阅读全文