Practice and Improve Your Skills

Variables, loops, functions, and basic data types. Build your foundation.

Master concise code writing with advanced list comprehensions and generators.

Classes, inheritance, polymorphism, and magic methods deeply explained.

Optimize search operations. Learn lower_bound, upper_bound, and answer range.

Implement Bubble, Merge, Quick, and Heap sort from scratch.

Master memoization and tabulation. Solve Knapsack, LCS, and more.

SELECT, WHERE, ORDER BY, and fundamental aggregation functions.

Inner, Left, Right joins and complex nested subqueries.