Ayush ThakurforInterview Bitsinterviewbits.hashnode.dev·Jul 15, 2024Constructing a Binary Tree from Preorder and Inorder TraversalOne of the fascinating challenges in binary tree problems is reconstructing the tree from its traversal data. In this post, we will discuss how to construct a binary tree given the preorder and inorder traversal arrays. Problem Statement Given two in...DiscussPython
Ujjwal Sharmaujjwalsharma.hashnode.dev·Jul 7, 2024Water bottle Problem (Leetcode POTD)Problem Link Click Here Approach We need to calculate the maximum number of full water bottles we can consume right so let's consider one test case Total filled bottled = 15, Exchange Rate = 4 So initially we will consume 15 bottles now these bott...Discussleetcode
Ujjwal Sharmaujjwalsharma.hashnode.dev·Jul 3, 2024Rotate the array by K placesQuestion link - https://leetcode.com/problems/rotate-array/ Approach 1 Brute Force approach Create a temporary vector that will store the number of arrays present to be rotated. Now we need to normalize the rotation because for example if the size ...DiscussDailyDoseOfDSA
Sean Coughlinblog.seancoughlin.me·Jul 2, 2024Mastering LeetCode: Solving the Lowest Common Ancestor of a Binary Tree ProblemSolving the Lowest Common Ancestor of a Binary Tree on LeetCode Introduction Finding the Lowest Common Ancestor (LCA) of two nodes in a binary tree is a classic problem often encountered in coding interviews and algorithm studies. Understanding how t...DiscussSWE Interview Preparationleetcode
Mahek Gormahekgor.hashnode.dev·Jul 2, 2024Leetcode POTD - Intersection of Two Arrays IIGiven two integer arrays nums1 and nums2, return an array of their intersection. Each element in the result must appear as many times as it shows in both arrays and you may return the result in any order. Example 1: Input: nums1 = [1,2,2,1], nums2 = ...Discussleetcode-solution
Sean Coughlinblog.seancoughlin.me·Jul 1, 2024Conquer the Binary Search: Mastering LeetCode’s Rotated Sorted Array ChallengeIntroduction Leetcode problems are a staple in coding interviews, challenging developers to optimize their problem-solving skills. One particularly intriguing problem involves finding an element in a rotated sorted array. This task not only tests you...DiscussSWE Interview PreparationPython
Sean Coughlinblog.seancoughlin.me·Jul 1, 2024Solving LeetCode's Combination Sum Problem: Optimized Techniques for Efficient SolutionsThe Combination Sum problem is a classic challenge on LeetCode that tests your algorithmic skills and your ability to implement efficient backtracking techniques. It's a problem frequently encountered in coding interviews, making it an essential part...DiscussSWE Interview PreparationPython
Sean Coughlinblog.seancoughlin.me·Jun 29, 2024Rotting Oranges: A Comprehensive Guide to Solving with BFS in PythonIntroduction In this article, we delve into solving the Rotting Oranges problem using the Breadth-First Search (BFS) algorithm in Python. Understanding this problem not only helps in mastering BFS but also enhances problem-solving skills in grid-base...DiscussSWE Interview Preparationleetcode
Sean Coughlinblog.seancoughlin.me·Jun 28, 2024Mastering LeetCode: Binary Search Tree ValidationIntroduction Binary Search Trees (BSTs) are a fundamental data structure in computer science, widely used in various applications such as databases, searching algorithms, and more. Ensuring that a tree maintains the properties of a BST is crucial for...DiscussSWE Interview Preparationleetcode
Sean Coughlinblog.seancoughlin.me·Jun 28, 2024Mastering the MinStack: Efficiently Supporting Minimum Element Retrieval in Constant TimeIntroduction Data structures are the backbone of efficient algorithms, providing the necessary foundation to solve complex problems swiftly and effectively. One intriguing challenge is designing a stack that supports not only the usual operations lik...DiscussSWE Interview Preparationleetcode