Neetcode

The full Neetcode 150 expansion: Blind 75 plus 75 follow-on problems for fuller coverage. The 75 shared problems are stubs that point at the worked solution on Blind75; the 75 extras have their full structure here.

Arrays#

Contains Duplicate#

Worked solution on the Blind 75 page · Leetcode

The canonical 75-problem Blind 75 subset of the Neetcode curriculum: enough breadth to OA-prep without the long tail. Worked solutions and prose live here; the full 150-problem expansion (with stub links back into this page for shared problems) is on Blind150.

Arrays#

Contains Duplicate#

Contains Duplicate on Leetcode

Valid Anagram#

Valid Anagram on Leetcode

Two Sum#

Two Sum on Leetcode