Given an array arr[] consisting of N positive integers, the task is to find the sum of Bitwise AND of all possible triplets (arr[i], arr[j],… Read More

# Category Archives: Combinatorial

Given an array A[] consisting of N non-negative integers, and an integer K, the task is to find the number of ways ‘+’ and ‘-‘… Read More

Given two N-digit positive integers X and Y, the task is to find the minimum absolute difference between both the integers possible by rearranging the… Read More

Given an array arr[] consisting of N strings, an array letter[] consisting of M lowercase characters, and an array score[] such that score[i] is the… Read More

Given two integers N and K, the task is to find the total number of ways of representing N as the sum of positive integers… Read More

Given an integer N, the task is to print all distinct permutations of the number N. Examples: Input: N = 133Output: 133 313 331Explanation:There are… Read More

Given a string S of length N, consisting of lowercase characters containing reordered English representations of digits [0 – 9], the task is to print… Read More

Given a positive integer N, the task is to find the number of Antisymmetric Relations on the given set of N elements. Since the number… Read More

Given a positive integer N, the task is to find the number of Asymmetric Relations in a set of N elements. Since the number of… Read More

Given a binary string S, the task is to print all distinct decimal numbers that can be obtained by generating all permutations of the binary… Read More

Given a string S, the task is to print permutations of all words in a sentence. Examples: Input: S = “sky is blue”Output: sky is… Read More

Given an integer N, representing objects placed adjacent to each other, the task is to count the number of ways to remove objects such that… Read More

Given an integer N representing the number of red and blue candies and a matrix mat[][] of size N * N, where mat[i][j] = 1… Read More

Given two integers N and K, the task is to find all valid combinations of K numbers that adds up to N based on the… Read More

Given an array arr[] consisting of N positive integers, the task is to find the maximum sum of Bitwise AND of same-indexed elements of permutation… Read More