摘要： 描述 给你一个m*n的格子的棋盘，每个格子里面有一个非负数。 从中取出若干个数，使得任意的两个数所在的格子没有公共边，就是说所取数所在的2个格子不能相邻，并且取出的数的和最大。 给你一个m*n的格子的棋盘，每个格子里面有一个非负数。 从中取出若干个数，使得任意的两个数所在的格子没有公共边，就是说所取 阅读全文

摘要： 描述 You are in charge of setting up the press room for the inaugural meeting of the United Nations Internet eXecutive (UNIX), which has an internationa 阅读全文

摘要： 描述 FJ has moved his K (1 <= K <= 30) milking machines out into the cow pastures among the C (1 <= C <= 200) cows. A set of paths of various lengths ru 阅读全文

摘要： 描述 Cows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others. Farmer John has cooked fabulo 阅读全文