Topic wise Quizes on Algorithms Data Structures and Algorithms (DSA) MCQ Quiz Online Quiz on Data Structures | DSA MCQs Quiz on Algorithms | DSA MCQs Topic DSA Quiz Link SearchingTop MCQs on Searching Algorithm with AnswersTop MCQs on Binary Search Algorithm with AnswersSortingTop MCQs on QuickSort Algorithm with AnswersTop MCQs on SelectionSort Algorithm with AnswersTop MCQs on 2 min read Total pairs in an array such that the bitwise AND, bitwise OR and bitwise XOR of LSB is 1 Given an array arr[] of size N. The task is to find the number of pairs (arr[i], arr[j]) as cntAND, cntOR, and cntXOR such that: cntAND: Count of pairs where bitwise AND of least significant bits is 1.cntOR: Count of pairs where bitwise OR of least significant bits is 1.cntXOR: Count of pairs where bitwise XOR of least significant bits is 1. Exampl 7 min read Maximize count of pairs whose Bitwise AND exceeds Bitwise XOR by replacing such pairs with their Bitwise AND Given an array arr[] consisting of N positive integers, replace pairs of array elements whose Bitwise AND exceeds Bitwise XOR values by their Bitwise AND value. Finally, count the maximum number of such pairs that can be generated from the array. Examples: Input: arr[] = {12, 9, 15, 7}Output: 2Explanation:Step 1: Select the pair {12, 15} and replac 9 min read Calculate Bitwise OR of two integers from their given Bitwise AND and Bitwise XOR values Given two integers X and Y, representing Bitwise XOR and Bitwise AND of two positive integers, the task is to calculate the Bitwise OR value of those two positive integers. Examples: Input: X = 5, Y = 2 Output: 7 Explanation: If A and B are two positive integers such that A ^ B = 5, A & B = 2, then the possible value of A and B is 3 and 6 respe 7 min read Bitwise OR of Bitwise AND of all subsets of an Array for Q queries Given two arrays arr[] of size N and queries[] of size Q, the task is to find the OR of AND of subsets of the array. In each query, you are given an index and a value, you have to replace the value at the given index of the arrays with a given value and print the OR of AND of all subsets of the array after each query. Examples: Input: arr[] = {3, 5 9 min read Find subsequences with maximum Bitwise AND and Bitwise OR Given an array of n elements. The task is to print the maximum sum by selecting two subsequences of the array (not necessarily different) such that the sum of bitwise AND of all elements of the first subsequence and bitwise OR of all the elements of the second subsequence is maximum. Examples: Input: arr[] = {3, 5, 6, 1} Output: 13 We get maximum A 4 min read Find pair whose bitwise OR and bitwise AND follows the given condition Given 2 arrays arr1[] and arr2[], of size N and M respectively, the task is to find a pair of value (say a and b) such that the following conditions are satisfied: (a | b) ? arr1[i] for all values of i in the range [0, N-1].(a & b) ? arr2[j] for all values of j in the range [0, M-1]. Examples: Input: arr1[] = { 6, 9, 7, 8}, arr2[] = {2, 1, 3, 4 7 min read Minimum possible Bitwise OR of all Bitwise AND of pairs generated from two given arrays Given two arrays arr[] and brr[] of length N and M respectively, create an array res[] of length N using the below operations such that the Bitwise OR of all the elements in the array res[] is minimum. For every index i in arr[], choose any index j(repetitions allowed) from the array brr[] and update res[i] = arr[i] & brr[j] The task is to prin 9 min read Count ways to generate pairs having Bitwise XOR and Bitwise AND equal to X and Y respectively Given two integers X and Y, the task is to find the total number of ways to generate a pair of integers A and B such that Bitwise XOR and Bitwise AND between A and B is X and Y respectively Examples: Input: X = 2, Y = 5Output: 2Explanation:The two possible pairs are (5, 7) and (7, 5).Pair 1: (5, 7)Bitwise AND = 5 & 7 = 2Bitwise XOR = 5 ^ 7 = 5P 7 min read Count pairs from an array whose Bitwise OR is greater than Bitwise AND Given an array A[] consisting of N integers, the task is to count the number of pairs (i, j) such that i < j, and Bitwise OR of A[i] and A[j] is greater than Bitwise AND of A[i] and A[j]. Examples: Input: A[] = {1, 4, 7}Output: 3Explanation: There are 3 such pairs: (1, 4), (4, 7), (1, 7).1) 1 | 4 (= 5) > 1 & 4 (= 0)2) 4 | 7 (= 7) > 4 10 min read

# Bitwise Algorithms - GeeksforGeeks (2024)

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