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Category Archives: Bit Magic

Given two integers N and M denoting the size of an array and the sum of the elements of the array, the task is to… Read More
Given an integer N, the task is to construct an array of N distinct elements (arr[i] ≤ N+1) such that the bitwise XOR of every… Read More
Given an array arr[] of size N and an integer K, the task is to find the count of all the ordered pairs (i, j)… Read More
Given a non-negative integer N, the task is to find the square root of N using bitwise operations. If the integer is not the perfect… Read More
Given two integers S and X representing the sum and bitwise XOR respectively of two integers, the task is to find the count of all… Read More
Given an array arr[] of size N, the task is to find if there exists a pair in the array, such that their bitwise XOR… Read More
Given an integer K and an array arr[] of size N, the task is to choose two elements from the array in such a way… Read More
Given a binary matrix arr[][] of N rows and M columns. The task is to find the number of cells in the matrix, where Bitwise… Read More
Given an array arr[] containing N positive integers, the task is to add an integer such that the bitwise Xor of the new array becomes… Read More
Given an integer N, the task is to count the number of integers (say x) in the range [0, 2N−1] such that x⊕(x+1) = (x+2)⊕(x+3).… Read More
Given a number N, the task is to find the number of zero’s in base K representation of the given number, where K > 1.… Read More
Given a positive integer N, the task is to find the minimum number of subtractions of power of 2 required to convert N to 0.… Read More
Given an integer N, the task is to find all possible integer M in the range [2, N] such that the bitwise OR of all… Read More
Given an array arr[] which contains N positive integers and an integer K. The task is to count all triplets whose XOR is equal to… Read More
Given two positive integers A and B. The task is to make them equal using minimum operations such that:  A = A + 1 (increase… Read More

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