DOM Tree Traversal through Breadth-first Search (BFS)
First We will learn about What is BFS? Breadth-first search (BFS) is an algorithm for traversing tree structures. The algorithm starts at the root node and […]
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DOM Tree Traversal through Depth-first Search (DFS)
First We will learn about What is DFS? Depth–first search (DFS) is an algorithm for traversing tree structures. The algorithm starts at the root node and […]
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Coding Challenge: Given an unsorted array A of size N of non-negative integers, find a continuous sub-array which adds to a given number S.
Input: [1, 2, 4, 6, 7, 5], 12 Output: [7,5] Logic Implementation: We can keep adding numbers from array. We can check conditions, if it […]
Write the code to find the balance point of an Array.
Question: You have given an array of integer. You need to create the algorithm which finds the balance point in the given array and return […]
Design a webpage which can auto-post new posts when you reach the bottom of the page by using JavaScript.
First of all you need to create the html page which contains 1 or 2 posts, which means on the page you can show headline […]
Coding Challenge – Find maximum in a stack in o(1) time!
Question: Create getMax() function to find maximum in a stack in O(1) time! This is widely asked technical interview for software engineers. You should know […]
Coding Challenge – Find the year with the most number of people alive!
Question: Given a list of people with their birth and end years (all between 1900 and 2000), find the year with the most number of people alive. Input: […]
Coding Challenge – Bring all nonzero elements to the left of the array
Question: Write an algorithm that brings all nonzero elements to the left of the array, and returns the number of nonzero elements. Input : {1, […]
Coding Challenge – Find out if a given singly-linked list contains a cycle.
Question: Write a function testListCycle() that takes node as argument for a given singly-linked list and returns a boolean indicating whether the list contains a cycle. A cycle meaning when […]