Problem Given a boolean expression consisting of the symbols 0 (false), 1 (true), & (AND), | (OR), and ^ (XOR), […]

Problem (Inspired by this question) The digits of the cube, 41063625 (3453), can be permuted to produce two other cubes: […]

Problem Integer permutation using Heap’s algorithm: import java.util.Arrays; public class IntegerPermutation { private static void swap(Integer[] integerArray, int i, int […]

Problem A triangle needs a good foundation. Every row in the triangle is derived from the sum of the two […]

Problem I am solving another problem in leetcode. Given a set, generate all the subsets of the set. Input: [1,2,3] […]