## Tower of Hanoi Problem

The Tower of Hanoi is a mathematical puzzle consisting of three rods and n disks of different sizes which can slide onto any rod.

## Print all numbers between 1 to N without using any loop | 4 methods

Write a program to print all numbers between 1 to N without using loop.

## Multiply two numbers without using multiplication operator or loops

Given two integers, multiply them without using multiplication operator or conditional loops.

## Implement power function without using multiplication and division operators

Given two positive integers, implement power function without using multiplication and division operators.

## Generate power set of a given set

Given a set S, generate all subsets of it i.e., find power set of set S. A power set of any set S is the set of all subsets of S, including the empty set and S itself.   For example, if S is the set {x, y, z}, then the subsets of S are: …

## Convert Max Heap to Min Heap in linear time

Given an array representing a Max Heap, in-place convert the array into the min heap in linear time.

## Check if an array represents min heap or not

Given an array of integers, check if it represents min heap or not.

## Heap Sort Algorithm – Overview & C, C++ and Java Implementation

Given an array of integers, sort it using heap sort algorithm in C, C++ and Java.

## 3-partition problem extended | Print all partitions

Given an array of positive integers which can be partitioned into three disjoint subsets having same sum and that covers S, print the partitions.

## Recursive Program to Calculate Factorial of a Number

Write a recursive C/C++ and java program to calculate factorial of a given positive number.   The factorial of a non-negative integer n is the product of all positive integers less than or equal to n. It is denoted by n!. There are n! different ways to arrange n distinct objects into a sequence.

## Determine if a given string is palindrome or not

Write a program to determine if a given string is palindrome or not. A palindromic string is a string that remains the same when its characters are reversed. Like “ABCBA”, for example, it is “symmetrical”.

## Efficiently print factorial series in a given range

Write a C program to efficiently print factorial series in a given range.