摘要：
ChessboardTime Limit:2000MSMemory Limit:65536KTotal Submissions:11078Accepted:3449DescriptionAlice and Bob often play games on chessboard. One day, Alice draws a board with size M * N. She wants Bob to use a lot of cards with size 1 * 2 to cover the board. However, she thinks it too easy to bob, so 阅读全文
