C++LeetCode:: Container With Most Water
本来写的题目不是这个,而是字符串匹配,考虑了很多情况写了很久最后看了solution,发现可以用动态规划做。感觉被打击到了,果断先放着重新写一个题,后面心情好了再重新写吧,难过。每天都要被LeetCode打击一次。自“抱”自“泣”,逻辑推理能力太差了。
题目:
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.
Note: You may not slant the container and n is at least 2.
面积取决于两个因素,一个是两个点的横坐标差值,另一个是两个点中的最小值。设置两个指针,分别表示数组的头和尾,首先计算这两个点的所构成长方形的面积,然后移动两点中较小数的指针向前(头指针)或退后(尾指针),因为如果移动的是两点中较大那个数的指针的话,两个点横坐标变小,两个点中最小值变小或者不变,那么长方形面积肯定变小,这样的计算是多余的。重复上述过程知道首尾指针相遇,记录该过程中的面积最大值就是结果。
class Solution {
public:
int maxArea(vector<int>& height) {
int i = 0, j = height.size()-1;
int current = 0, bigest = 0;
while(i<j){
current = (j-i) * (height[i]>height[j]?height[j--]:height[i++]);
bigest = bigest>current?bigest:current;
}
return bigest;
}
};
看了一下运行最快的代码,思路一样,估计测试用例不一样导致运行时间不一样。
C++LeetCode:: Container With Most Water的更多相关文章
- LeetCode:Container With Most Water,Trapping Rain Water
Container With Most Water 题目链接 Given n non-negative integers a1, a2, ..., an, where each represents ...
- [LeetCode] Container With Most Water 装最多水的容器
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). ...
- [LeetCode]Container With Most Water, 解题报告
前言 难怪LeetCode OJ在找工作时被很多人推荐,发现了这道最大蓄水题目就是美团的笔试最后一道题,当时我霸笔只有着一道题目没有答出来,因此也就没有获得面试机会,可惜了 题目 Given n no ...
- leetcode Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). ...
- [LeetCode] Container With Most Water 简要分析
前言 这题非要说贪心的话也算是吧,不过最主要的特征还是双指针.LC的题好像不少都是扔倆头尾指针然后遍历一遍完事儿的.这道题倒是“短板效应”的不错体现了. 题目 题目链接 Given n non-neg ...
- [Leetcode] Container With Most Water ( C++)
题目: Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, a ...
- LeetCode——Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). ...
- LeetCode Container With Most Water (Two Pointers)
题意 Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai ...
- [Leetcode] container with most water 最大水容器
Given n non-negative integers a1 , a2 , ..., an , where each represents a point at coordinate (i, ai ...
随机推荐
- HTML+CSS+JS 传智 详细笔记
HTML(1)- -毕向东老师对Html的简介 CSS- -毕老师对CSS的简介 Javascript- -毕老师对JS的简介 html&css等等练习表(W3Cscholl) js练习表回顾 ...
- 【RFT】【环境配置】Mac
参考地址:http://blog.csdn.net/u010044052/article/details/70858015?utm_source=itdadao&utm_medium=refe ...
- _faction
一.自定义阵营独立于联盟,部落,联盟和部落玩家可以加入同一阵营 二._function_menu表可以配置自定义阵营开启 二.配合_pvp表,可以实现区域的自定义阵营PVP 三.配合_req表fact ...
- @Value("#{}")与@Value("${}")的区别以及用法
package com.ieou.capsule_basic_info.util; import org.springframework.beans.factory.annotation.Value; ...
- Spring Security 中的加密BCryptPasswordEncoder
// // Source code recreated from a .class file by IntelliJ IDEA // (powered by Fernflower decompiler ...
- CentOS6.5下搭建SVN服务器
1.检查是否已安装 rpm -qa | grep subversion 如果要卸载旧版本: yum remove subversion 2.安装 yum install subversion PS:y ...
- Mysql 强行Kill 连接
BEGIN ; ; ; DO KILL @Temp; ; END WHILE ; END
- 使用pymongo连接mongodb时报错:pymongo.errors.OperationFailure: not authorized
连接本机或局域网部署的mongodb时可以用以下方法: from urllib import parse from pymongo import MongoClient host = '*.*.*.* ...
- [转]VS中的路径宏 OutDir、ProjectDir、SolutionDir各种路径含义
转自 http://blog.csdn.net/restraint/article/details/39934401 说明 $(RemoteMachine) 设置为“调试”属性页上“远程计算机”属性的 ...
- Android 错误集合
1. Error:java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 erro ...