[Leetcode][python]Find First and Last Position of Element in Sorted Array/在排序数组中查找元素的第一个和最后一个位置 题目大意 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...
[Leetcode][python]Find First and Last Position of Element in Sorted Array/在排序数组中查找元素的第一个和最后一个位置 题目大意 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...
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题目 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]. Example 1: Input: nums = [5,7,...
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 of O(log n). If the target is not found in the array, return[-1, -1]. ...
13results = [-1,-1]14print(mid)15iflow<=highandnums[mid]==target: # 这句话判断是否找到了该元素。low<=high是必须的,否则就不存在该元素16i,j =mid,mid # 左右指针17while(i>=1andnums[i-1]==target):i-=118while(j<len(nums)-1andnums[j+1]==target):j+=119results =[i,j]20retu...
【数组-二分】34. Find First and Last Position of Element in Sorted Array 题目链接 https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/description/ 思路:复杂度是log,用二分。当nums[mid]==target的时候,用for循环来判断左右边界。
I am using the following code to find a string in anstd::vectorofstringtype. But how to return the position of particular element? Code: #include<iostream>#include<algorithm>#include<vector>usingnamespacestd;intmain(){ vector<string> vec; vector<string>::iterator it; vec.push_back("H...
Loading...leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/ 方法一:掉包: classSolution{public:vector<int>searchRange(vector<int>&nums,inttarget){intN=nums.size();if(N==0)return{-1,-1};inti=lower_bound(nums.begin(),nums.end(),target)-nums.begin();if...
Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value.If target is not found in the array, return [-1, -1].You must write an algori…