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May 26, 2012 · Step 1 : Find “min” and “max” value in the given array. It will take O(n). Step 2 : Find XOR of all integers from range “min” to “max” ( inclusive ). Step 3 : Find XOR of all elements of the given array. Step 4 : XOR of Step 2 and Step 3 will give the required duplicate number. Description :
Apr 13, 2024 · Another Approach: Using XOR Operator. In this approach we will be using XOR property that A ^ A = 0 to find the duplicate element. We will first XOR all the elements of the array with 0 and store the result in the variable “answer”.
Nov 5, 2011 · Using XOR operator for finding duplicate elements in a array fails in many cases
May 10, 2023 · To find the XOR of repeating elements XOR all the elements of the array and then XOR that result with XOR of the first N natural numbers. Now, find the rightmost set bit of X^Y to divide the array on the basis of the rightmost set bit.
Dec 14, 2023 · Find duplicate in an array in O(n) and by using O(1) extra space Given an array arr[] containing n integers where each integer is between 1 and (n-1) (inclusive). There is only one duplicate element, find the duplicate element in O(n) time complexity and O(1) space.
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How to find a duplicate element using XOR operator?
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Sep 27, 2022 · In this tutorial, we will try to find the solution to Find Duplicate In An Array Using Xor through programming. The following code illustrates this. int DuplicateNumber(int arr[], int size){. int ans=0; for(int i=0;i<size;i++){. ans= ans ^ arr[i] ; } for(int i=0;i<=size-2;i++){. ans= ans ^ i;
