Tree的traverse,Preorder, Inorder, Postorder ,这些都是用stack来模拟考察的比较多。参考这里: PreOrder, InOrder, PostOrder 题型总结 这里主要总结,divide and conquer 逻辑,往上返回result的情况; Lowest Common Ancestor of a Binary Search Tree 思路
问题:https://leetcode.com/problems/maximum-subarray/?tab=Description Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array
In general, the divide-and-conquer paradigm consists of the following steps. The divide step. The input is partitioned into 1 ≤ p ≤ n parts. The conquer step. This step consi
Moo University - Financial Aid 其实是老题了http://www.cnblogs.com/Philip-Tell-Truth/p/4926008.html 这一次我们换二分法来做这一道题,其实二分法比我以前那个方法好想一点,主要是这次我们可以根据下标进行二分,然后排两次序,第一次是根据分数来排
第四章 Decrease-and-Conquer 增量方法:自下而上的变化通常是以迭代方式实现;以问题的一个小地方开始。 The bottom-up variation is usually implemented iteratively, starting with a solution to the smallest instance of