版权声明: 本文为博主Bravo Yeung(知乎UserName同名)的原创文章,欲转载请先私信获博主允许,转载时请附上网址 http://blog.csdn.net/lzuacm. C#版 - Leetcode 414. Third Maximum Number题解 在线提交: https://leetcode-cn.com/problems/third-maximum-number 题目描述 414. 第三大的数 给定一个非空数组,返回此数组中第三大的数.如果不存在,则返回数组中最大的数.…

Maximum Subarray: Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,-1,2,1,-5,4], the contiguous subarray [4,-1,2,1] has the largest sum = 6. 这是动态规划的一道较简单的…

#include "numeric_limits.hpp"#include <limits>#include <iostream> ///////////////////////////////////////////////////////////////////////* reference: http://www.cplusplus.com/reference/limits/numeric_limits/ https://msdn.microsoft.co…

题目: Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit.…

排序基础 排序方法分两大类,一类是比较排序,快速排序(Quick Sort).归并排序(Merge Sort).插入排序(Insertion Sort).选择排序(Selection Sort).希尔排序(Shell Sort).堆排序(Heap Sort)等属于比较排序方法,比较排序方法理论最优时间复杂度是O(nlogn),各方法排序过程和原理见  可视化过程. 另一类是非比较排序,被排序元素框定范围的前提下可使用非比较排序方法,例如桶排序(Bucket Sort).计数排序(Counting…

分治法基础 分治法(Divide and Conquer)顾名思义,思想核心是将问题拆分为子问题,对子问题求解.最终合并结果,分治法用伪代码表示如下: function f(input x size n) if(n < k) solve x directly and return else divide x into a subproblems of size n/b call f recursively to solve each subproblem Combine the results…

Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 题解: 题意比较清楚, 找到从root出发最长的一条路径的长度. 采用DFS即可. 相似的一道题: Minimux Depth of Binary Tree 解法: http://…

题面 这是2022年ICPC昆明站的F题.在赛场上,我一开始敲了个贪心,但是出锅了,改敲树形DP,但是时间来不及了.在队友的提醒下补过了这个题,知道解法的我发现我就是个纯纯的老坛-- 原题链接在牛客网:F-Find the Maximum_第46届ICPC亚洲区域赛(昆明)(正式赛),需要先登录之后才能访问.下面搬运一下原题面: A tree with nn vertices is a connected undirected graph with \(n\) vertices and \(n-…

题目描述: Given an unsorted array, find the maximum difference between the successive elements in its sorted form. Try to solve it in linear time/space. Return 0 if the array contains less than 2 elements. You may assume all elements in the array are non…

题目来源 https://leetcode.com/problems/maximum-depth-of-binary-tree/ Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 题意分析 Input: tree Output:…