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. Your ...
1. Problem Descriptions: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 in the array, return [-1…
输入:nums = [1,5,8,9] target = 7 输出:[-1,-1] 解决思路:二分查找直到找到第一个目标值,再对目标值左右进行二分查找 Python代码: classSolution(object):defsearchRange(self, nums, target):""":type nums: List[int] :type target: int :rtype: List[int]"""l=0 r= len(nums)-1whilel...
last= len(nums) - 1found=False results= [-1, -1]ifnums ==[]:returnresultsiftarget < nums[0]ortarget >nums[last]:returnresultswhilefirst <= lastandnotfound: mid= (first + last) // 2 #找到了,分别继续向前,向后查找,直到找到第一个和最后一个targetiftarget ==nums[mid]: low=mid hig...
This article mainly introduces how to find the position of an element in a list using Python, which is of great reference value and hopefully helpful to everyone. How to Find the Position of an Element in a List Problem Description Given a sequence containing n integers, determine the ...
Python Find String in List usingcount() We can also usecount()function to get the number of occurrences of a string in the list. If its output is 0, the string is not present in the list. l1=['A','B','C','D','A','A','C']s='A'count=l1.count(s)ifcount>0:print(f'{...
题目描述 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]. ...
[LeetCode] 34. Find First and Last Position of Element in Sorted Array 2019-11-04 12:18 −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 ... ...
Python Basic - 1: Exercise-76 with Solution Write a Python program to find the starting and ending position of a given value in an array of integers, sorted in ascending order. If the target is not found in the array, return [-1, 0]. ...
Write a NumPy program to find elements within a range from a given array of numbers. Sample Solution: Python Code: # Importing the NumPy library and aliasing it as 'np'importnumpyasnp# Creating a NumPy array 'a' containing integersa=np.array([1,3,7,9,10,13,14,17,29])# Displaying ...