Explanation for Leetcode 206 - Reverse Linked List problem, and its solution in Python.

Explanation for Leetcode 141 - Linked List Cycle problem, and its solution in Python.

Explanation for Leetcode 704 - Binary Search problem, and its solution in Python.

Explanation for Leetcode 20 - Valid Parentheses problem, and its solution in Python.

Explanation for Leetcode 121 - Best Time to Buy and Sell Stock problem, and its solution in Python.

Explanation for Leetcode 125 - Valid Palindrome problem, and its solution in Python.

Explanation for Leetcode 242 - Valid Anagram problem, and its solution in Python.

Explanation for Leetcode 217 - Contains Duplicate problem, and its solution in Python.

Explanation for Leetcode 977 - Squares of a Sorted Array problem, and its solution in Python.

Explanation for Leetcode 1 - Two Sum problem, and its solution in Python.