摘要：题目描述: DNA sequence Problem Description The twenty-first century is a biology-technology developing century. We know that a gene is made of DNA. The nu 阅读全文

摘要：题目描述: The Rotation Game Problem Description The rotation game uses a # shaped board, which can hold 24 pieces of square blocks (see Fig.1). The blocks 阅读全文

摘要：题目描述: Black And White Color an N × M chessboard with K colors numbered from 1 to K such that no two adjacent cells have the same color (two cells are 阅读全文

摘要：题目描述: 连连看 Problem Description “连连看”相信很多人都玩过。没玩过也没关系，下面我给大家介绍一下游戏规则：在一个棋盘中，放了很多的棋子。如果某两个相同的棋子，可以通过一条线连起来（这条线不能经过其它棋子），而且线的转折次数不超过两次，那么这两个棋子就可以在棋盘上消去。不好 阅读全文