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【算法】动态规划 | LOUIS' BLOG #74

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@isLouisHsu

https://louishsu.xyz/2020/03/21/%E3%80%90%E7%AE%97%E6%B3%95%E3%80%91%E5%8A%A8%E6%80%81%E8%A7%84%E5%88%92/

动态规划和贪婪算法一样,对一个问题的解是一系列抉择的结果。在贪婪算法中已做出的抉择是不可更改的,而动态规划需考察一个最优抉择序列是否包含最优抉择子序列。称无论第一次选择是什么,接下来的选择一定是当前状态下的最优选择为最优原则(principal of optimality)。 用动态规划求解的步骤如下 证实最优原则适用,否则不能使用动态规划; 建立动态规划递归方程(dynamic-program

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