2018过农历新年这几天，学了一下状态压缩动态规划，现在先总结一下。 状态压缩其实是一种并没有改变dp本质的优化方法，阶段还是要照分，状态还是老样子，决策依旧要做，转移方程还是得列，最优还是最 ...

Description Farmer John has purchased a lush new rectangular pasture composed of M by N (1 ≤ M ≤ 12 ...