Given a string s, find the longest palindromic subsequenc...[作者空间]
646. Maximum Length of Pair Chain找到符合规则的最长chain。weekly co...[作者空间]
You are a professional robber planning to rob houses alon...[作者空间]
为什么我常常对做题产生恐惧,因为可能为了一个不算难的问题不知不觉绕进去2个小时,这显然是不值得的。这题就是如此。 ...[作者空间]
20170706 今天再做这题,写出来了。这题之前说的「局部最优解」「全局最优解」可以这么理解,局部最优解就相当于...[作者空间]
You may complete as many transactions as you like (ie, bu...[作者空间]
09/04/2017 这题用局部最优解和全局最优解的标准套路来想吧,这就是dp啊。递推公式: local[i+1]...[作者空间]
https://www.youtube.com/watch?v=CE2b_-XfVDk&t=300s 07/04/...[作者空间]
Given an integer n, generate all structurally unique BST'...[作者空间]
https://leetcode.com/problems/unique-binary-search-trees/...[作者空间]