Choose a Topic

Select a data structure or algorithm category to explore

ARR

Array / String

24 problems

2P

Two Pointers

5 problems

WIN

Sliding Window

4 problems

MAT

Matrix

5 problems

MAP

Hashmap

9 problems

STK

Stack

1 problem

LL

Linked List

9 problems

TREE

Binary Tree

13 problems

BFS

Binary Tree BFS

4 problems

BST

Binary Search Tree

3 problems

GRT

Graph Traversal

6 problems

GBFS

Graph BFS

3 problems

BT

Backtracking

7 problems

D&C

Divide & Conquer

4 problems

KAD

Kadane's Algorithm

1 problem

BS

Binary Search

7 problems

HEAP

Heap

4 problems

MATH

Math

2 problems

DP1

1D DP

5 problems

DP2

Multidimensional DP

9 problems