Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a brainy activity for cows in which they manipulate an M× N grid (1 ≤ M ≤ 15; 1 ≤ N ≤ 15) of square tiles, each of which is colored black o…
题目链接:http://poj.org/problem?id=1753 Flip Game Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 46724 Accepted: 20002 Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One…