题目链接: https://leetcode.com/problems/search-for-a-range/?tab=Description   Problem: 在已知递减排序的数组中,查找到给定数字的起止下标   采用两遍扫描: 第一遍扫描得到给定数字的起始下标,(从下标i==0开始到nums.lenght-1) 第二遍扫描从第一遍扫描得到的下标开始进行扫描    参考代码: package leetcode_50; /*** * * @author pengfei_zheng * 数组中…

leetcode - 34. Search for a Range - Medium descrition Given an array of integers sorted in ascending order, 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 ta…

[LeetCode每日一题]80. 删除有序数组中的重复项 II 问题 给你一个有序数组 nums ,请你 原地 删除重复出现的元素,使每个元素 最多出现两次 ,返回删除后数组的新长度. 不要使用额外的数组空间,你必须在 原地 修改输入数组 并在使用 O(1) 额外空间的条件下完成.   说明: 为什么返回数值是整数,但输出的答案是数组呢? 请注意,输入数组是以「引用」方式传递的,这意味着在函数里修改输入数组对于调用者是可见的. 你可以想象内部操作如下: // nums 是以"引用"方…

Given an array of integers nums sorted in ascending order, 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 the array, return [-1, -1].…

Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input array A = […

##面试题53 - I. 在排序数组中查找数字 I ###题目 统计一个数字在排序数组中出现的次数. 示例 1: 输入: nums = [5,7,7,8,8,10], target = 8 输出: 2 示例 2: 输入: nums = [5,7,7,8,8,10], target = 6 输出: 0 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/zai-pai-xu-shu-zu-zhong-cha-zhao-shu-zi-lcof 著作…

原题目:Search for a Range, 现在题目改为: 34. Find First and Last Position of Element in Sorted Array Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. Your algorithm's runtime complexity…

https://leetcode.com/problems/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 the…

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 the array, return [-1, -1]. For ex…

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 the array, return [-1, -1]. For ex…