The LeetCode 21 solution involves merging two sorted linked lists, a common coding challenge you’ll often encounter in coding interviews and platforms like LeetCode. The LeetCode 21 problem, titled “Merge Two Sorted Lists”, offers an excellent opportunity to practice linked list operations and solve problems efficiently with minimal time complexity. Problem Explanation In the...
LeetCode 20 Solution: Valid Parentheses in Python
In this blog post, we will explore an efficient solution for one of the most commonly asked coding interview questions: LeetCode 20: Valid Parentheses. This problem tests your ability to determine if a string containing only parentheses, such as (), {}, and [], is valid. The goal is to ensure that the parentheses are properly balanced and nested. Understanding how to solve this problem will not...
LeetCode 14 Solution: Longest Common Prefix in Python
The LeetCode 14 solution to the “Longest Common Prefix” problem challenges you to find the longest prefix shared by a group of strings. A prefix is a substring that appears at the start of a string. The task is to determine the longest prefix that is common across all strings in the array. If no common prefix exists, the function should return an empty string. This problem is...
LeetCode 13 Solution: Roman to Integer in Python
When tackling coding challenges like LeetCode’s “Roman to Integer” problem (LeetCode 13), it’s essential to not only solve the problem but also understand the process behind it. In this post, we will walk through a complete LeetCode 13 solution with clear explanations. The goal is to convert a Roman numeral into an integer, using Python. Roman Numerals: What You Need to Know Roman...
LeetCode 9 Solution: Palindrome Number Explained in Python
In this blog post, we’ll dive into the LeetCode 9 solution for the Palindrome Number problem. If you’re preparing for coding interviews or looking to level up your problem-solving skills, this problem is a fantastic way to practice working with numbers in Python without resorting to string manipulation. Let’s explore the logic and code to solve this popular problem efficiently. Problem...
LeetCode #1 solution: Two Sum
Problem: 1 two sum Leetcode #1 solution – Two Sum: Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in any order. Examples: Input: nums = [2...