DSA Interview 150

Curated 150-problem DSA interview sheet — arrays through bit manipulation, with C# stdin/stdout solutions and auto-judge.

150 problems in 18 categories

Arrays & Hashing

9 problems

Two Pointers

5 problems

Sliding Window

6 problems

Stack

7 problems

Binary Search

7 problems

Linked List

11 problems

Trees

15 problems

Tries

3 problems

Heap / Priority Queue

7 problems

Backtracking

9 problems

Graphs

13 problems

Advanced Graphs

6 problems

1-D Dynamic Programming

12 problems

2-D Dynamic Programming

11 problems

Greedy

8 problems

Intervals

6 problems

Math & Geometry

8 problems

Bit Manipulation

7 problems
All tracks
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