POJ 3017 Cut the Sequence (单调队列优化DP) - 水果君の日常 - 博客频道 - CSDN.NET



POJ 3017 Cut the Sequence (单调队列优化DP) - 水果君の日常 - 博客频道 - CSDN.NET

将一个由N个数组成的序列划分成若干段,要求每段数字的和不超过M,求【每段的最大值】的和 的最小的划分方法,输出这个最小的和。

分析: 
方程是:dp[i] = min(dp[j]+maxsum[j+1][i]) 
但复杂度n*n太高,需要优化。 
可以用单调队列+BST优化,其实只需要维护每一段的最大值。 
看了这篇题解的:http://blog.csdn.net/muye67/article/details/5999033


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