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]...
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]. Example 1: Input: nums = [...
描述: 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,...
34. Find First and Last Position of Element in Sorted Array** https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/ 题目描述 Given an array of integers nums sorted in ascending order, find the starting and ending position of...
const evenNumber = numbers.find((element) => element % 2 === 0); console.log(evenNumber); // 输出:2 在上面的示例中,我们定义了一个数组numbers,然后使用array.find()方法查找第一个满足条件(即为偶数)的元素。回调函数(element) => element % 2 === 0用于判断元素是否为偶数,如果是,则返回该...
Modify the program to insert the element at the correct index in the array. Write a program to find the index of the first and last occurrence of a number. Modify the program to return the index using binary search. Write a program to find the closest index where an element could be in...
N.B.: Given a sorted array in ascending order and a value x, the ceiling of x is the smallest element in array greater than or equal to x, and the floor is the greatest element smaller than or equal to x. This problem requires finding the smallest element in a sorted array that is...
sorted_data =sorted(data, key=lambda x: x[1]) In this example, thekeyargument specifies that the second element of each tuple should be used as the sorting criterion. Using Reverse Parameter Thereverseparameter is a simplebooleanflag that allows you to change the sort order from ascending (...
题目 在一个非降序排列的数组中,找到给定目标数的起始位置和终止位置。如果找不到目标数,返回 [-1,-1] 解析 整个过程分为两段 找到起始位置,终止条件为数组结束或者比目标...
在排序数组中查找元素的第一个和最后一个位置 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...