Algo: maxSubArray vs. maxProduct

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Algo: maxSubArray vs. maxProduct

这两个问题类似,都可利用动态规划思想求解. 一.最大连续子序列和 https://leetcode.com/problems/maximum-subarray/description/ https://www.geeksforgeeks.org/largest-sum-contiguous-subarray/ The core ideas are the same: currentMax = max(nums[i], some_operation(currentMax, nums…

MaxSubArray 最大子数列和

public int maxSubArray(int[] A) { int newsum=A[0]; int max=A[0]; for(int i=1;i<A.length;i++){ newsum=Math.max(newsum+A[i],A[i]); max= Math.max(max, newsum); } return max; } int maxSubArray(int *a, const int length) { ; ; ; i <length; i++) { sum_i =…

maxSubArray

Description: 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. Thoughts: this prob…

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algo: 冒泡排序（Java实现）

package com.liuxian.algo; public class MySortClass implements Comparable<MySortClass> { public String userName; public int num; public MySortClass(String userName, int num) { this.userName = userName; this.num = num; } public int compareTo(MySortCla…

【algo&ds】4.B树、字典树、红黑树、跳表

上一节内容[algo&ds]4.树和二叉树.完全二叉树.满二叉树.二叉查找树.平衡二叉树.堆.哈夫曼树.散列表 7.B树 B树的应用可以参考另外一篇文章 8.字典树Trie Trie 树,也叫"字典树".顾名思义,它是一个树形结构.它是一种专门处理字符串匹配的数据结构,用来解决在一组字符串集合中快速查找某个字符串的问题.它的一个经典应用场景就是输入框的自动提示. 举个例子来说明一下,我们有 6 个字符串,它们分别是:how,hi,her,hello,so,see.我们希望在里面…

[Algo] 87. Max Product Of Cutting Rope

Given a rope with positive integer-length n, how to cut the rope into m integer-length parts with length p[0], p[1], ...,p[m-1], in order to get the maximal product of p[0]*p[1]* ... *p[m-1]? m is determined by you and must be greater than 0 (at leas…