javascript顺序数组简单实现个二分查找

【javascript顺序数组简单实现个二分查找】的更多相关文章

javascript顺序数组简单实现个二分查找

直接上码了注释写得很详细: function bsearch(A,x){ //l:查找范围左 r:查找范围右 let l = 0, //查询范围左边界 r = A.length-1, //查找范围右边界 guess //中间猜测位置 while(l <= r){ //guess等于l,r中间位置 guess = Math.floor( (l+r)/2 ) //判断当前位置是否为要查找的值,是则返回下标 if(A[guess] === x) return guess //如果当前位置值大于要查询的…

【Java数据结构与算法】简单排序、二分查找和异或运算

简单排序选择排序概念首先,找到数组中最小的那个元素,其次,把它和数组的第一个元素交换位置(如果第一个元素就是最小的元素那么它就和自己交换).再次,在剩下的元素中找到最小的元素,将它与数组的第二个元素交换位置.如此往复,直到将整个数组排序.这种方法叫做选择排序,因为它在不断地选择剩余元素中地最小者. 代码实现 public static void SelectionSort(int[] arr){ if(arr==null||arr.length<2) return; //去除多余情况 in…

[LeetCode] #1# Two Sum : 数组/哈希表/二分查找/双指针

一. 题目 1. Two SumTotal Accepted: 241484 Total Submissions: 1005339 Difficulty: Easy Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solutio…

[LeetCode] #167# Two Sum II : 数组/二分查找/双指针

一. 题目 1. Two Sum II Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the ta…

[算法][LeetCode]Search a 2D Matrix——二维数组的二分查找

题目要求 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 from left to right. The first integer of each row is greater than the last integer of the previo…