Map of Contents

Solutions, approaches, and complexity analysis for practice problems like Leetcode DSA problems.

Leetcode 355 - Design Twitter Jul 31, 2026

leetcodeneetcode-150-listpythonheaphashmapdesign

Leetcode 621 - Task Scheduler Jul 30, 2026

leetcodeneetcode-150-listpythonheapqueuegreedy

Leetcode 271 - Encode and Decode Strings Jul 29, 2026

leetcodeneetcode-150-listpythonstring

Leetcode 133 - Clone Graph Jul 20, 2026

leetcodeneetcode-150-listpythongraphbfs

Leetcode 695 - Max Area of Island Jul 20, 2026

leetcodeneetcode-150-listpythondfsgraph

Deep-ML - Matrix-Vector Dot Product Jul 16, 2026

deep-mllinear-algebrapythonmatrix-operations

Leetcode 90 - Subsets II Jul 16, 2026

leetcodeneetcode-150-listpythonbacktrackingrecursion

Leetcode 40 - Combination Sum II Jul 14, 2026

leetcodeneetcode-150-listpythonbacktrackingrecursion

Leetcode 46 - Permutations Jul 14, 2026

leetcodeneetcode-150-listpythonbacktrackingrecursion

Leetcode 78 - Subsets Jul 7, 2026

leetcodeneetcode-150-listpythonbacktrackingrecursion

Leetcode 22 - Generate Parentheses Jul 4, 2026

leetcodeneetcode-150-listpythonbacktrackingrecursionNone

Leetcode 973 - K Closest Points to Origin Jul 3, 2026

leetcodeneetcode-150-listpythonmax-heap

ARENA - 0.1 Ray Tracing Jul 2, 2026

My notes and explanation about the exercises for Ray Tracing Exercises in the ARENA curriculum

pytorchnumpylinear-algebra

Leetcode 1046 - Last Stone Weight Jul 2, 2026

leetcodeneetcode-150-listpythonmax-heap

Leetcode 215 - Kth Largest Element in an Array Jul 1, 2026

leetcodeneetcode-150-listpythonmin-heap

Leetcode 703 - Kth Largest Element in a Stream Jul 1, 2026

leetcodeneetcode-150-listpythonmin-heap

Leetcode 1448 - Count Good Nodes in Binary Tree Jun 30, 2026

leetcodeneetcode-150-listpythonbinary-treedfs

Leetcode 199- Binary Tree Right Side View Jun 30, 2026

leetcodeneetcode-150-listpythonbinary-treebfsdeque

Leetcode 110 - Balanced Binary Tree Jun 15, 2026

leetcodeneetcode-150-listpythontreedfs

Leetcode 146 - LRU Cache Jun 15, 2026

leetcodeneetcode-150-listpythonlinked-listhashmap

Leetcode 543 - Diameter of Binary Tree Jun 15, 2026

leetcodeneetcode-150-listpythontreedfs

Leetcode 2 - Add Two Numbers Jun 10, 2026

leetcodeneetcode-150-listpythonlinked-list

Leetcode 138 - Copy List with Random Pointer Jun 8, 2026

leetcodeneetcode-150-listpythonlinked-listhashmap

Leetcode 981 - Time Based Key-Value Store Jun 3, 2026

leetcodeneetcode-150-listpythonbinary-searcharrayhashmap

Leetcode 875 - Koko Eating Bananas Jun 2, 2026

leetcodeneetcode-150-listpythonbinary-searcharray

Leetcode 74 - Search a 2D Matrix Jun 1, 2026

leetcodebinary-searchmatrixneetcode-150-listpython