Tag Archive For "interview question"
Add Two Numbers Leetcode Problem 2 [Python Solution]
Problem Overview The LeetCode problem Add Two Numbers is a medium difficulty problem in the category of Linked Lists. It's a common problem that tests your understanding of linked lists and basic arithmetic operations. The task is to add two non-empty linked lists, representing two non-negative integers. The digits are stored in reverse order, and …
Add Binary Leetcode Problem 67 [Python Solution]
In this blog post, we will discuss the LeetCode problem Add Binary. This is an easy-level problem that falls under the category of Bit Manipulation. The goal is to add two binary strings, a and b, and return their sum as a binary string. Problem Overview Given two binary strings, a and b, our task …
Accounts Merge Leetcode Problem 721 [Python Solution]
In this blog post, we'll dive into the Accounts Merge problem from LeetCode, categorized under graphs, and assigned a medium difficulty level. The goal of this problem is to merge a list of accounts based on their common email addresses, ensuring that each merged account includes the person's name and sorted email addresses. Before we …
Snakes And Ladders Leetcode Problem 909 [Python Solution]
Snakes And Ladders Leetcode problem, which is categorized under medium difficulty and falls in the Graphs category is a great opportunity to explore. An interesting algorithmic challenge that requires a well-thought-out approach. We’ll provide a Python solution and dive into its code and reasoning. Problem: You are given an n x n integer matrix board …
Sort An Array Leetcode Problem 912 [Python Solution]
In this guide, we will solve the Sort An Array problem, which is LeetCode Problem 912. We’ll provide a Python solution for this problem while adhering to specific constraints. Problem Name: Sort an ArrayDifficulty: MediumCategory: Arrays & HashingCompanies: Amazon Question Link: Sort an Array on LeetCode The goal is to sort an array of integers …
Sort Colors Leetcode Problem 75 [Python Solution]
Under the category of Arrays and Hashing, with a medium difficulty level, Sort Colors Leetcode problem is a great problem to understand and practice various sorting techniques. Let’s dive into the details. Problem Overview Question: Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the …
Spiral Matrix Leetcode Problem 54 [Python Solution]
In this tutorial, we dismantle the Spiral Matrix Leetcode problem, a Math and Geometry related quetion and is categorized as a medium-level problem. The challenge is set by Microsoft, and it’s a great exercise to strengthen your coding skills. We will walk through the problem statement, provide an efficient Python solution, analyze the time and …
Squares Of A Sorted Array Leetcode Problem 977 [Python Solution]
Squares Of A Sorted Array, although this problem is categorized as “Easy,” it comes with a bit of a twist that makes it quite engaging. We’ll walk you through the problem statement, the constraints, the reasoning behind our approach, and provide you with both a brute-force and an efficient Python solution. You can find the …
Subtree Of Another Tree Leetcode Problem 572 [Python Solution]
Subtree Of Another Tree problem falls under the category of tree-related questions and is classified as an “Easy” problem on Leetcode. It’s worth noting that this problem has been encountered in technical interviews by companies such as Amazon, making it a valuable addition to your problem-solving repertoire. Problem Overview The problem is as follows: given …
Sum Of Two Integers Leetcode Problem 371 [Python Solution]
Sum Of Two Integers LeetCode problem is under the category umbrella of Bit Manipulation and is considered a medium difficulty challenge. The task at hand is to find the sum of two integers, ‘a’ and ‘b’, without using the standard addition or subtraction operators. Instead, we’ll employ a clever approach involving bit manipulation. Example 1: …
Surrounded Regions Leetcode Problem 130 [Python Solution]
The Surrounded Regions Leetcode problem 130 is a fascinating problem that challenges your skills in handling matrices and regions. In this problem, you are given an m x n matrix board, which contains only ‘X’ and ‘O’ characters. Your task is to capture all regions that are surrounded in all four directions by ‘X’. A …
Swap Nodes In Pairs Leetcode Problem 24 [Python Solution]
In this blog post, we face the Swap Nodes In Pairs problem, which is LeetCode Problem 24. The goal is to take a linked list and swap every two adjacent nodes, returning the modified list’s head. It’s important to note that we can’t modify the values within the nodes; we can only change the connections …
Swim In Rising Water Leetcode Problem 778 [Python Solution]
In this tutorial post, we’ll be solving the Swim In Rising Water LeetCode problem, falling under the category of advanced graphs. We’ll explore the problem statement, constraints, and ultimately provide an efficient Python solution to tackle it. If you’d like to refer to the original problem on LeetCode, you can find it here. Problem Overview …
Target Sum Leetcode Problem 494 [Python Solution]
In the Target Sum problem, you are given an integer array nums and an integer target. The task is to build an expression out of the numbers in nums by adding either a ‘+’ or ‘-‘ symbol before each integer in nums and then concatenate all the integers. The goal is to determine the number …
Task Scheduler Leetcode Problem 621 [Python Solution]
In the Task Scheduler problem, we are given an array of tasks represented by characters, where each character represents a different task. These tasks can be done in any order, with each task taking one unit of time. There is also a non-negative integer ‘n’ representing the cooldown period between two same tasks. This cooldown …