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Dec 14, 2023 · Simple Approach: The idea is to use nested loop and for each element check if the element is present in the array more than once or not. If present, then store it in a Hash-map. Otherwise, continue checking other elements.
Find All Duplicates in an Array - Given an integer array nums of length n where all the integers of nums are in the range [1, n] and each integer appears once or twice, return an array of all the integers that appears twice.
Find the Duplicate Number - Given an array of integers nums containing n + 1 integers where each integer is in the range [1, n] inclusive. There is only one repeated number in nums, return this repeated number.
Sep 30, 2018 · Given an array of n + 1 integers between 1 and n, find one of the duplicates. If there are multiple possible answers, return one of the duplicates. If there is no duplicate, return -1.
Given an array arr of size n which contains elements in range from 0 to n-1, you need to find all the elements occurring more than once in the given array. Return the answer in ascending order. If no such element is found, return list containing.
May 7, 2024 · Given an array of n elements that contains elements from 0 to n-1, with any of these numbers appearing any number of times. Find these repeating numbers in O (n) and use only constant memory space.
Learn 10 different ways to find duplicate elements in an array in JavaScript. A performance comparison of each method is also given in form of race chart.
Jul 3, 2021 · Learn how to check if an array contains duplicate values using indexOf (), set object, and iteration in JavaScript.
Jul 18, 2012 · How can I (efficiently, Pythonically) find which elements of a are duplicates (i.e., non-unique values)? In this case the result would be array([1, 3, 3]) or possibly array([1, 3]) if efficient.
Jan 21, 2019 · In this post, we will learn to find duplicate elements in array in java using Brute Force method, using Sorting method, using HashSet, using HashMap and using Java 8 Streams.
