The Valid Parentheses is in the easy category and is a good start for understanding more challenging algorithms using the stack and array as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given a string s…

The Squares of a Sorted Array List is in the easy category and is a good start for understanding more challenging algorithms using arrays as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given an integer…

The “Squares of a Sorted Array “is in the easy category and is a good start for understanding more challenging algorithms using arrays as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given an integer array…

The Linked List Cycle List is in the easy category and is a good start for understanding more challenging algorithms using a linked list as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: ”Given head, the head…

The “Reverse Linked List” is in the easy category and is a good start for understanding more challenging algorithms using a linked list as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given the head of…

The Range Sum of the BST challenge is in the easy category and is a good start for understanding more challenging algorithms using trees as a data structure. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given the root…

The Longest Common Prefix challenge is in the easy category and is a good start for understanding more challenging algorithms. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Write a function to find the longest common prefix string amongst…

The “Remove Roman Integer” challenge is in the easy category and is a good start for understanding more challenging algorithms. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Roman numerals are represented by seven different symbols: I, V, X…

The Remove Duplicate challenge is in the easy category and is a good start for understanding more challenging algorithms. I will focus on explaining a solution that works and not on the O time and space complexity. Challenge: “Given sorted array nums, remove the duplicates in-place such that each element appears…