Write a Python program to find the first duplicate element in a given array of integers. Return -1 if there are no such elements.Sample Solution:Python Code :def find_first_duplicate(nums): num_set = set() no_duplicate = -1 for i in range(len(nums)): if nums[i] in num_set: re...
That’s all about finding the duplicate elements in a list in C#. Also See: Find duplicates in a List in C# Get frequency of elements from List in C# Find duplicates in an array in C# Rate this post Submit Rating Average rating4.89/5. Vote count:27 ...
We are required to write a JavaScript function that takes in an array of literals, such that some array elements are repeated. We are required to return an array that contains that appear only once (not repeated). For example: If the array is:> const arr = [9, 5, 6, 8, 7, 7, ...
Write a Java program to find the two largest distinct elements in an array. Write a Java program to find the third smallest element in an array without sorting it. Write a Java program to find the second smallest element in an array using recursion. Write a Java program to find the Kth ...
You can speed up some cases with a simple bounds check on the two halves of the array. Check that the element is between the first and last elements of the array. For example: if I have a sorted array of 100 elements[1, ..., 1000], I know that –5 isn’t in that array just...
The simplest use of np.unique() function is to find unique elements in a one-dimensional array −Open Compiler import numpy as np # Define a 1D array with duplicate values array = np.array([1, 2, 2, 3, 4, 4, 5]) # Find unique elements unique_elements = np.unique(array) print...
MongoDB中有两种方式进行OR查询:“$in”可以用来查询一个键的多个值,“$or”则更通用一些,可以用来完成多个键值对的组合。我们也分别演示一下:我们要查询奖券号码为10,20,30 的所有投注者的姓名: > db.raffle.find({}) {"_id" : ObjectId("50210091d6acd1b2a3fb3172"),"name" :"tim","ticket_no"...
Array's IN SQL SERVER? ASCII values for extended characters Assign empty string '' if datetime is null Assign EXEC output to Variable Assigning NULL value to column name using Case Statement of where is SQL SERVER 2008 atomic if not exists() and insert or update Attempt to fetch logical pag...
Can you solve this real interview question? Find the Winner of an Array Game - Given an integer array arr of distinct integers and an integer k. A game will be played between the first two elements of the array (i.e. arr[0] and arr[1]). In each round of
we partition the array into two halves, the one that has all elements smaller than it and the others that are larger than it. The good thing is that we know where the pivot index is. Thus, we can iteratively partition the half (and not the other half which the Kth is not in it)....