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PHP算法-二分法查找

** * 二分法查找 * 在有序数组中查询 * * @param int $needle * @param array $arr */ function dichotomize_search($needle, $arr) { $count = count($arr); if ($count < ...
PHP算法二分法 
erntoo 评论(0) 有673人浏览 2017-09-01 03:43

python实现二分法查找

一 代码 defBinarySearch(l,key): low =0 high = len(
python二分法 
cakin24 评论(0) 有1008人浏览 2017-07-02 07:42

菜鸟Java大面经----------------关于二分法

关于二分法 package com.ahuiby.demo1; public class BinarySearch { //二分法 public static int binarySearch(int arr[],int key){ int begin=0; int end =arr.length-1; while(begin<=end){ ...
二分法 
YE_wolf 评论(0) 有371人浏览 2016-08-12 10:06

Find the Duplicate Number

Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, fin ...
二分法 
KickCode 评论(0) 有556人浏览 2016-02-27 02:26

First Bad Version

You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality check. Since each version is developed based on the ...
二分法 
KickCode 评论(0) 有675人浏览 2016-02-26 03:07

H-Index II

Follow up for H-Index: What if the citations array is sorted in ascending order? Could you optimize your algorithm? 这道题目是H-Index的follow up。题目的意思让我们在O(log n)的时间复杂度下解决。我们用二分法，这道题目比较trick, 代码如下： public ...
二分法H-Index 
KickCode 评论(0) 有446人浏览 2016-02-26 02:56

Search a 2D Matrix II

Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted in ascending from left to right. Integers in each c ...
二分法 
KickCode 评论(0) 有660人浏览 2016-02-24 05:38

Find Peak Element

A peak element is an element that is greater than its neighbors. Given an input array where num[i] ≠ num[i+1], find a peak element and return its index. The array may contain multiple peaks, in that ...
二分法 
KickCode 评论(0) 有670人浏览 2016-02-16 03:11

Search Insert Position

Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array. H ...
java二分法 
KickCode 评论(0) 有477人浏览 2016-01-28 02:20

Search for a Range

Given a sorted array of integers, find the starting and ending position of a given target value. Your algorithm's runtime complexity must be in the order of O(log n). If the target is not found in th ...
java二分法 
KickCode 评论(0) 有330人浏览 2016-01-28 02:11

Search in Rotated Sorted Array

Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return its i ...
java二分法 
KickCode 评论(0) 有638人浏览 2016-01-28 01:54

java二分法查找

java二分法查找 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 蕃薯耀 2015年6月23日 11:40:03 星期二 http:/ ...
java二分法查找二分法java二分法蕃薯耀蕃薯 
蕃薯耀 评论(0) 有1363人浏览 2015-06-23 11:40

HDU 2199 Can you solve this equation?

原题传送门：http://acm.hdu.edu.cn/showproblem.php?pid=2199   Can you solve this equation? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8116    A ...
二分法方程求解 
hellojyj 评论(0) 有1035人浏览 2014-07-18 15:25

二分法查询

  public class Dichotomy {   public static void main(String[] args) { int[] array=new int[100000]; for(int i=0;i<100000;i++){ array[i]=(i+10); } int point=find(array,99998); S ...
数据结构排序二分法 
zhangb5228509 评论(0) 有824人浏览 2012-11-27 21:57

python二分法查找

下面是一段用Python实现的二分法查找代码 #encoding=utf-8 import sys def search2(a,m): low = 0 high = len(a) - 1 while low<=high: mid = (low + high)/2 midval = a[mid] ...
python二分法 
sls0919 评论(0) 有5025人浏览 2012-11-20 15:22

java 二分法查询

  在ansj看到一个二分法查询，不用递归的 public static int binarySearch(WoodInterface[] branches, char c) { int high = branches.length - 1; if (branches.length < 1) { return high; } int low = 0; ...
java二分法 
blackproof 评论(0) 有840人浏览 2012-10-09 14:28

使用二分法查找java对象

        在J2EE Web项目开发中，Excel导入导出批量处理数据是比较常见的。在Excel导入时涉及到业务逻辑之类的校验。譬如说：导入的数据是否存在于数据库中，否做添加数据操作，是则作更新操作，大部分系统不只是单纯的更新数据，根据某些业务规则来确认是否更新数据，需要取到要更新的数据。而这个时候如果要遍历导入的数据集合，去数据库查询并取到与之相关的持久化数据，最终根据相关业务逻辑进行再一步 ...
二分法javalist集合查找对象 
言日星极 评论(0) 有3972人浏览 2012-08-18 01:29

hdu2289 二分法 圆台体积

Cup Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1616    Accepted Submission(s): 509 Problem Description The WHU ACM Team has a ...
二分法 
motontop 评论(0) 有7人浏览 2012-08-16 22:17

你真的会二分查找吗？

  看到这个标题无论你是处于怎样的心理进来看了，我觉得都是值得的。因为这个问题太简单，任何一个开始接触“真正”算法基本都是从二分查找开始的。至于二分查找都不知道是什么的可以先去找别的资料看下，再来看这篇文章。既然很简单，那么我们开始一起写一个吧，要求是对num[]={1,2,2,4,4,8,10}不减序列在区间[0,7)进行查找，当然我们得首先保证要查找的数e满足：num[0] <= e & ...
二分法二分查找算法 
mixer_b 评论(0) 有1024人浏览 2012-04-16 21:14

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