Category: problem-solving
All the articles in the category "problem-solving".
175 - Combine Two Tables
Solving LeetCode's Combine Two Tables problem with a SQL LEFT JOIN to report person details even when address data is missing.
181 - Employees Earning More Than Their Managers
Solving LeetCode's Employees Earning More Than Their Managers problem using a SQL self join.
62 - Unique Paths
A dynamic programming approach to LeetCode's Unique Paths problem, moving from a naive recursive solution to memoization, with Python code.