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DescriptionACM小组的Samsara和Staginner对中国象棋特别感兴趣，尤其对马（可能是因为这个棋子的走法比较多吧）的使用进行深入研究。今天他们又在 构思一个古怪的棋局:假如Samsara只有一个马了，而Staginner又只剩下一个将，两个棋子都在棋盘的一边，马不能出这一半棋盘的范围，另外这 一半棋盘的大小很奇特(n行m列)。Samsara想知道他的马最少需要跳几次

DescriptionBackgroundMr Somurolov, fabulous chess-gamer indeed, asserts that no one else but him can move knights from one position to another so fast. Can you beat him? The ProblemYour ta

DescriptionThere is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black tile. From a tile, he can move to one of four adjacent til

Red and BlackTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12866    Accepted Submission(s): 7960Problem DescriptionThere is a