@tutorialhorizon
Objective: Given two integers N and K, Write an algorithm to find possible combinations that add to K, from the numbers 1 to N. Condition: An integer from 1 to N can be repeated...
Objective: Given an array of integers, write an algorithm to construct the largest number possible by appending the array elements. Example: Given Input: [7, 78] Largest Number Possible: 787 Explanation: two possibilities are 778...
Objective: Given an array of integers, find the sum of any three elements which is closest to zero. The array may contain positive and negative elements. Example: Given Input: [-1, 4, -2, 5, 10,...
Objective: Given an array of integers and number N, Write an algorithm to find and print all the subsets of the array for which sum is equal to N. Example: input [] = {6,2,7,8,2,4,1,3,7,5}...
Objective: Given an array of numbers and integer K. Your task is to find lengths of all the subsets which contain value K and all elements in the subset are less than equal to...
Objective: Given an array of integers, write a program to replace its elements with the maximum element on the right side from their respective positions. Note: If the element is equal to the maximum...
Objective: Given an integer N, Write an algorithm to select numbers from 1 to 9 and make combinations such that its sum to N. Example: N= 5 Output: [1, 4] [2, 3] [5] N...
Objective: Given an integer N, write a function to return an array containing N unique integers that sum up to zero. There are many possible arrays that sum up to 0 for any N,...
Objective: The activity selection problem is a combinatorial optimization problem concerning the selection of non-conflicting activities to perform within a given time frame, given a set of activities each marked by a start time...
Objective: Given an undirected graph, Write an algorithm to determine whether its tree or not. An undirected graph is a tree if it has properties mentioned below There is no cycle present in the...
Objective: Given a binary tree, write an algorithm to determine whether the tree is complete or not using Level order traversal. Earlier we had solved this problem by counting the number of nodes in...
Objective: Given a range, find all the numbers in the range which has prime set bits using Sieve of Eratosthenes Algorithm. Earlier we had seen a similar problem -Numbers with prime set bits in...
Objective: Given a binary tree, write an algorithm to determine whether the tree is complete or not. Complete Binary Tree: A binary tree T with n levels is complete if all levels except possibly...
Objective: Given a 2d grid map of ‘1’s (land) and ‘0’s (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. Assume...
Objective: Given a string, write an algorithm to find the longest substring with at most K characters. Example: Input: aabbaacdeeeeddded, K = 3 Output: Longest substring with 3 most unique characters is: cdeeeeddded with...
