Understanding Iterative vs Recursive Implementation
via Bubble Sort Algorithm
Feb 27, 20219 min read
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Top and Bottom view of a Binary Tree
Given a Binary Tree you need to print the top view and bottom view of the Binary Tree. Level order input for the Binary Tree is given. 1. Top view sample input: 1 2 3 4 5 6 -1 -1 -1 -1 -1 -1 -1 sample output: 4 2 1 3 The tree looks like: ...
Feb 13, 20218 min read
Left and Right view of a Binary Tree
Given a Binary Tree, you need to print the Left view and right view of a Binary Tree. Level Order input for the Binary Tree is given. 1. Left View sample input: 1 2 3 4 5 -1 6 -1 -1 -1 -1 -1 -1 sample output: 1 2 4 The tree looks like: ...
Feb 11, 20215 min read
Union and Intersection of 2 Sorted Arrays with duplicates
Problem Statement: Given 2 sorted arrays of different sizes with duplicates, find the union and intersection of the arrays. Let's start off with the intersection of 2 sorted arrays. It is a fairly easy problem but one needs to take care of the edge c...
Jan 10, 20217 min read
Merging K-Sorted Arrays and Linked Lists using Min Heap
Let's start off with a basic version of merging two sorted linked lists with the help of 2 pointer heads. Input: l1 = [1,2,4], l2 = [1,3,4] Output: [1,1,2,3,4,4] Let's assume the structure of the node as given below. // Definition for singly-linked ...
Jan 4, 20219 min read