Leetcode 34. Find First and Last Position of Element in Sorted Array 在一个有序数组中找到第一个和最后一个元素,程序员大本营,技术文章内容聚合第一站。
1.题目描述 英文版: Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. Your algorithm&#
first,last=mid,midwhilel <=first: fm= (first+l) // 2ifnums[fm] <target: l= fm + 1else: first= fm -1whiler >=last: rm= (last+r) // 2ifnums[rm] >target: r= rm - 1else: last= rm + 1return[first+1,last-1]return[-1,-1]...
34. Find First and Last Position of Element in Sorted ArrayDescription: 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)....
Can you solve this real interview question? Find First and Last Position of Element in Sorted Array - Given an array of integers nums sorted in non-decreasing order, find the starting and ending position of a given target value. If target is not found i
Find First and Last Position of Element in Sorted Array 题目描述: 给定一个按照升序排列的整数数组 nums,和一个目标值 target。找出给定目标值在数组中的开始位置和结束位置。 你的算法时间复杂度必须是 O(log n) 级别。 如果数组中不存在目标值,返回 [-1, -1]。 示例 1: 输入: nums =......
题目地址:https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/description/ 题目描述 Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. ...
32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 代码是转自:https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/discuss/362807/0-ms-faster-than-100.00-of-Java-online-submissions
Find First and Last Position of Element in Sorted Array - LeetCode 注意点 nums可能为空 时间复杂度为O(logn) 解法 解法一:最普通的二分搜索,先找到一个target,然后向两边拓展。 class Solution { public: int binarySearch(vector<int>& nums, int target) { int left = 0,right = nums.size()-1;...
Given an array of integersnumssorted in ascending order, find the starting and ending position of a giventargetvalue. Your algorithm's runtime complexity must be in the order ofO(logn). If the target is not found in the array, return[-1, -1]. ...