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DSA Starter Pack

Beginner

Beginner-friendly problems to build fundamentals

Beginner-friendly problems to build fundamentals. Work through 50 hand-picked problems grouped by topic and track your progress.

50 problems ~30 days by CompileMate 14E 36M 0H

Binary Search

Easy

Roman to Integer

Easy

Find the Balance Index

Easy

Two Sum

Easy

Max Consecutive Ones

Easy

Squares of a Sorted Array

Easy

First Unique Character

Easy

Pascal's Triangle

Easy

Running Sum of an Array

Easy

Happy Number

Easy

Move Zeroes

Easy

Set Matrix Zeroes

Medium

Longest Palindromic Substring

Medium

Container With Most Water

Medium

Sort Colors (Dutch Flag)

Medium

Number of Islands

Medium

Gas Station Circuit

Medium

Coin Change

Medium

Spiral Matrix

Medium

Subsets

Medium

Longest Consecutive Sequence

Medium

Partition Labels

Medium

Top K Frequent Elements

Medium

Merge Intervals

Medium

House Robber

Medium

Maximum Product Subarray

Medium

Rotate Image

Medium

Koko Eating Bananas

Medium

Permutations

Medium

Kth Largest Element in an Array

Medium

House Robber II

Medium

Reverse Words in a String

Medium

Letter Combinations of a Phone Number

Medium

Two Sum II - Input Array Is Sorted

Medium

Capacity to Ship Packages Within D Days

Medium

Word Break

Medium

Shortest Subarray With Sum ≥ Target

Medium

FizzBuzz

Easy

Length of Last Word

Easy

Longest Common Subsequence

Medium

Excel Sheet Column Number

Medium

Count Palindromic Substrings

Medium

Days Until Warmer

Medium

Next Greater Element (Circular)

Medium

Search a Sorted 2D Matrix

Medium

Binary Tree Level Order Traversal

Medium

Number of Provinces

Medium

Target Sum

Medium

Unique Paths

Medium

Number of 1 Bits

Easy

DSA Starter Pack

Arrays & Hashing

Strings

Stacks & Queues

Trees & BST

Graphs

Dynamic Programming

Math & Bit Manipulation