Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For example:A = …

题目:非负数的数组,每个数组元素代表这你能最大跨越多少步,初始在0的位置,问,能不能正好调到数组的最后一位! https://leetcode.com/problems/jump-game/#/description 思路1:从尾部记录每个元素能不能到达末尾,算法复杂度O(n*n)[当时想出这个算法,还自以为不错,但是leetcode说算法超时呀,被分分钟教做人] 思路2:对这整个数组中的数据结构深刻的理解!(参考:http://blog.csdn.net/linhuanmars/article…

目录 概念 强迫邻居(Forced Neighbour) 跳点(Jump Point) JPS 寻路算法(Jump Point Search) 实现原理 示例过程 JPS+(Jump Point Search Plus) 预处理 示例过程 总结 参考 概念 JPS(jump point search)算法实际上是对A* 寻路算法的一个改进,因此在阅读本文之前需要先了解A*算法. A* 算法在扩展节点时会把节点所有邻居都考虑进去,这样openlist中点的数量会很多,搜索效率较慢. 例如在无遮挡情…

Jump Game I Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For…

Given an array of non-negative integers, you are initially positioned at the first index of the array.Each element in the array represents your maximum jump length at that position.Determine if you are able to reach the last index. #include<iostream>…

Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the minimum number of jumps…

--------------------------------------------------------------- 本文使用方法:所有题目,只需要把标题输入lintcode就能找到.主要是简单的剖析思路以及不能bug-free的具体细节原因. ---------------------------------------------------------------- ------------------------------------------- 第九周:图和搜索. ---…

rsync是一种文件差异传输的算法,特点是高效且相似块识别率较高.具体算法这边就不赘述,网上很多,官方文档也描述的很清楚. rsync提高文件比对效率的一个核心算法之一就是rolling checksum,官方使用的是Alder32 Hash算法. 在我经历的一个项目中,我们在Windows Azure中实现文件差异传输模块,我使用rsync时发现在本地测试速度非常理想,但一旦放到实际环境中则让人完全无法接受. 于是走上了漫长而痛苦的优化之路...... 除了外部的一些调优,最终我还是决定在rs…

题目: Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the minimum number of j…

Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Determine if you are able to reach the last index. For example:A = …