Ultimate DSA problems

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We have hand picked the best problems from the most popular coding platforms and curated them into a single platform for you to practice and revise.

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ProblemCode
Recursion

Fibonacci

Tribonacci

Climbing Stairs

Min Cost Climbing Stairs

House Robber

House Robber 2

Subsets

Combinations

Generate Parentheses

Decode Ways

Permutations

N-Queens

Sudoku Solver

Dynamic Programming

Fibonacci

LCS

Edit Distance

Wildcard Matching

Partition Equal Subset Sum

Coin Change

Regular Expression Matching

Palindromic Substrings

Longest Palindromic Substring

Longest Palindromic Subsequence

Palindrome Partitioning

Palindrome Partitioning 2

Word Break

Buy and Sell Stock K Transactions

Kanpsack

LIS

Kadane's Max Subarray

Unique Paths

Square Submatrices

Matrix Chain Multiplication

Binary tree

Path Sum 2

Root to Leaf Nos Sum

Pre Order

Post Order

In Order

Level Order Traversal

Level Order Traversal 2

ZigZag Level Order Traversal

Right View of Binary Tree

Vertical Order Traversal

BT From Pre and Inorder

BT From Post and Inorder

LCA of BT

Serialise Deserialise

BST

Insert in Bst

Validate BST

Construct BST From Preorder

Delete Node in Bst

LCA of BST

Unique BSTs

Unique BSTs 2

N-Ary Trees

Level Order Traversal

Graphs

Find Path

No of Provinces

No of Islands

Numbers With Same Consecutive Differences

Clone Graph

Bipartite

Matrix 01

Word Ladder

Course Schedule

Course Schedule 2

Dijkstra Algo

Network Delay Time

Cheapest Flights With K-Stops

Min Cost to Connect Points