Jump Game 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 ex…

The problem: 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…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5162 题目意思:有 n 个 kid,每个 kid 有三个成绩 a, b, c.选最大的一个成绩作为这个 kid 的最终成绩.然后根据每个 kid 的最终成绩,对他们进行排名. 赛中写得比较丑陋,这个还比较顺眼....呵呵 #include <iostream> #include <cstdio> #include <cstdlib> #include <cstring…

question:Super Jumping! Jumping! Jumping! 意思就是找一串数字中的和最大子串 思路:创建另一个数组,每一项是路径数组对应项之前最大子串的和,然后遍历此数组找出最大值即可(也是参考了别人的博客,下面是链接,这是接触的第一道dp题,希望慢慢的自己也会写!) 原文链接 source code: package hduoj; import java.util.Scanner; public class hdoj_1087 { public static void…

\(\mathcal{Description}\)   Link.   有 \(n\) 个编号 \(1\sim n\) 的格子排成一排,并有三个权值序列 \(\{a_n\},\{h_n\},\{p_n\}\),其中 \(\{p_n\}\) 是一个排列.从 \(i\) 跳到 \(j\),必须满足 \(i<j\land p_i<p_j\),代价为 \((h_i-h_j)^2+a_j\),求从 \(1\) 跳到 \(n\) 的最小代价.   \(n,h_i\le6\times10^5\). \(\m…

Question 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…

Problem E. Jump A JumpInput file: standard inputOutput file: standard outputTime limit: 1 secondsMemory limit: 512 mebibytes There’s a very popular game called jump a jump recently.In order to get good marks, many people spend a lot oftime in this game…

1. Longest Palindromic Substring ( 最长回文子串 ) 2. Median of Two Sorted Arrays (两个排序数组的中位数) 3. Sqrt(x) 4. Single Number && Single Number (II) 5. Integer to Roman && Roman to Integer 6. 3Sum && 4Sum [ && K sum ] && 3Sum…

14.反馈与触发器 振荡器不需要人的干涉即可自主且不断地实现断开和闭合.所有计算机都靠某种振荡器来使其他部件同步工作. 当两个开关都断开时,电路有两个稳定状态,这样的一个电路称为触发器.触发器具有记忆性,可以保持信息.各种触发器如下表: <code>书中常用的电路 振荡器 分频器 8位行波(异步)计数器 8-1选择器 3-8译码器 15.字节与十六进制 看完这一章,个人认为十六进制的出现应该就是为了要简单清晰的表示字节吧.四进制表示就只比二进制缩短了1倍,八进制实现不了8个位组成的字节,二百五…

250pts   PeriodicJumping 题意:从起点开始,每次按找数组jump给定的长度,即jump[0], jump[1], jump[2].....jump[n-1], 向各个方向跳,跳完后从从头开始,问最后能否达到(x,0). 限制:|x| <= (int)1e9,n <= 50, 1 <= len[i] <= (int)1e9. 分析: 题解分析的很详细,每次跳完后可达的范围离原点的距离总是一个区间[a,b],考虑下一次跳的长度r之后,可达的范围, (1). r…