Aquariuslt

摘要： PalindromeTime Limit:3000MSMemory Limit:65536KTotal Submissions:44576Accepted:15197DescriptionA palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to write a program which, given a string, determines the minimal number of 阅读全文

摘要： Human Gene FunctionsTime Limit:1000MSMemory Limit:10000KTotal Submissions:14324Accepted:7939DescriptionIt is well known that a human gene can be considered as a sequence, consisting of four nucleotides, which are simply denoted by four letters, A, C, G, and T. Biologists have been interested in iden 阅读全文