Study Plan

DSA Tracker - Data Structures and Algorithms Progress Tracker

Track your progress through 177 curated Data Structures and Algorithms problems across 16 topics. Filter by difficulty, save your progress locally, and prepare systematically for coding interviews. This DSA tracker combines the best problems from Blind 75, NeetCode 150, and Grind 75 into one comprehensive checklist.

177

Problems

73h 55m

Total time

0%

0 done

Two Sum
15m
Contains Duplicate
15m
Valid Anagram
15m
Group Anagrams
25m
Top K Frequent Elements
25m
Product of Array Except Self
30m
Encode and Decode Strings
25m
Longest Consecutive Sequence
30m
Sort Colors
20m
Next Permutation
25m
Majority Element
15m
Majority Element II
25m
4Sum
35m
Subarray Sum Equals K
25m
Set Matrix Zeroes
25m
Rotate Image
25m
Spiral Matrix
25m
First Missing Positive
35m
Valid Palindrome
15m
Two Sum II
15m
3Sum
30m
Container With Most Water
30m
Trapping Rain Water
35m
Move Zeroes
15m
Remove Duplicates from Sorted Array
15m
Dutch National Flag
20m
Implement Trie (Prefix Tree)
25m
Design Add and Search Words
30m
Word Search II
45m
Longest Word in Dictionary
25m
Subsets
20m
Combination Sum
25m
Permutations
25m
Subsets II
25m
Combination Sum II
25m
Word Search
30m
Palindrome Partitioning
30m
Letter Combinations of a Phone Number
20m
N-Queens
40m
Sudoku Solver
45m
Climbing Stairs
15m
House Robber
20m
House Robber II
25m
Longest Palindromic Substring
30m
Palindromic Substrings
25m
Decode Ways
25m
Coin Change
25m
Maximum Product Subarray
25m
Word Break
30m
Longest Increasing Subsequence
25m
Unique Paths
20m
Longest Common Subsequence
25m
Best Time to Buy and Sell Stock with Cooldown
30m
Coin Change II
30m
Target Sum
25m
Partition Equal Subset Sum
25m
Edit Distance
30m
Distinct Subsequences
35m
Burst Balloons
40m
Regular Expression Matching
40m
Minimum Path Sum
20m
Maximum Subarray
20m
Jump Game
20m
Jump Game II
25m
Maximum Subarray
20m
Jump Game
20m
Gas Station
25m
Hand of Straights
25m
Merge Triplets to Form Target
25m
Partition Labels
25m
Valid Parenthesis String
25m
Non-overlapping Intervals
25m
Insert Interval
25m
Merge Intervals
25m
Non-overlapping Intervals
25m
Meeting Rooms
15m
Meeting Rooms II
25m
Minimum Interval to Include Each Query
40m
Rotate Image
20m
Spiral Matrix
25m
Set Matrix Zeroes
25m
Happy Number
15m
Plus One
10m
Pow(x, n)
20m
Multiply Strings
30m
Detect Squares
30m
Single Number
10m
Number of 1 Bits
10m
Counting Bits
15m
Reverse Bits
15m
Missing Number
10m
Sum of Two Integers
20m
Reverse Integer
15m

Data Structures and Algorithms Topics Covered

data_arrayArrays & Hashing
18
compare_arrowsTwo Pointers
8
swap_horizSliding Window
8
stacked_bar_chartStack
10
searchBinary Search
10
linkLinked List
12
account_treeTrees
18
spellcheckTries
4
filter_listHeap
8
undoBacktracking
10
hubGraphs
18
grid_onDynamic Programming
24
boltGreedy
8
timelineIntervals
6
calculateMath & Geometry
8
memoryBit Manipulation
7

What is a Data Structures and Algorithms Tracker?

A Data Structures and Algorithms (DSA) tracker is a structured tool for organizing your coding interview preparation. Instead of solving random LeetCode problems and hoping for the best, a DSA tracker gives you a curated list organized by topic so you can build skills systematically and see your progress at a glance. This tracker covers 177 problems across 16 core topics, from fundamental data structures like arrays and linked lists to advanced algorithms like dynamic programming and graph traversal.

Why use this DSA tracker?

Interview preparation without structure leads to wasted time. You solve random problems, forget patterns you practiced last week, and have no idea how much ground you have actually covered. A DSA tracker solves this by giving you a curated list organized by topic, so you can build skills systematically and measure your progress.

This tracker includes 35 Easy, 121 Medium, and 21 Hard problems totaling approximately 74 hours of practice. The problems overlap with the most popular study plans ( Blind 75, NeetCode 150, and Striver’s A2Z sheet) but goes deeper in each topic. For a comparison of the smaller lists, see our Blind 75 vs NeetCode 150 analysis.

How this Data Structures and Algorithms tracker is organized

The 177 problems are grouped into 16 topics, ordered from foundational to advanced. Arrays and hashing come first because they introduce the core operations you will use everywhere. Trees and graphs come later because they require comfort with recursion. Dynamic programming is near the end because it builds on every other technique. Each topic has enough problems to build real pattern fluency, not just surface-level exposure.

Recommended study approach

Start with Easy problems in each topic to learn the pattern, then move to Medium problems to apply it under constraints. Most coding interviews focus on Medium difficulty, so prioritize those if you are short on time.

For each problem: spend 20 minutes attempting it before looking at hints. If you cannot solve it after 30 minutes, study the solution, understand the pattern, and revisit it in 3-5 days. For more detailed timelines, see our guide on how long structured study plans take.

When you have completed enough problems to feel confident, test yourself under real conditions with a free AI mock interview. For company-specific preparation, check which topics your target employer emphasizes on our company interview questions page. Our analysis of whether study plans are enough for FAANG shows that company-specific targeting is critical.

Related study plans

Blind 75

The original 75 LeetCode problems

75

Grind 75

Optimized version of Blind 75

75

NeetCode 150

NeetCode's curated 150 problems

150

Frequently Asked Questions

What is a DSA tracker?add

A DSA tracker (Data Structures and Algorithms tracker) is a tool that helps you organize and track your progress through coding practice problems. This tracker covers 177 curated Data Structures and Algorithms problems across 16 core topics, from arrays and hash maps to dynamic programming and graph algorithms.

How were these 177 problems selected?add

The problems are curated from the most commonly asked coding interview questions across top tech companies. The selection overlaps with Blind 75, NeetCode 150, and Striver's A2Z sheet, combining the best problems from each into one comprehensive Data Structures and Algorithms checklist.

Is my progress saved?add

Yes. Your progress is saved automatically to your browser's local storage. It persists across sessions and page refreshes. No account required.

What order should I solve the problems in?add

Start with Arrays & Hashing and Two Pointers. Then move to Sliding Window, Stack, and Binary Search. After that, tackle Linked Lists, Trees, and Graphs. Save Dynamic Programming and Backtracking for last. This order builds each skill on top of the previous one.

How long does it take to complete all 177 problems?add

The full set takes approximately 74 hours of solving time, or about 8-12 weeks at 1-2 hours per day. Solving 2-3 problems per day is more effective than marathon sessions. See our guide on how long NeetCode 150 takes for more detailed timelines.

How is this different from Blind 75 or NeetCode 150?add

This Data Structures and Algorithms tracker is a comprehensive 177-problem set that covers more topics in greater depth than both Blind 75 (75 problems) and NeetCode 150 (150 problems). It includes additional problems in Tries, Bit Manipulation, Intervals, and advanced Graph algorithms that are underrepresented in smaller lists. See our Blind 75 vs NeetCode 150 comparison for more details.

Is this DSA tracker free?add

Yes, completely free. The full 177-problem list, progress tracking, difficulty filters, and all features are free with no account required. Your progress saves locally in your browser.

Tracking problems is step one

Solving them under pressure is step two. Practice with an AI interviewer that asks follow-ups, gives hints, and scores your solution.

Try a free mock interviewarrow_forward

Related reading

Blind 75 vs NeetCode 150

Problem-by-problem comparison of both lists

Is NeetCode 150 Enough?

FAANG coverage data from 1,500+ real interview questions

How Long Does NeetCode 150 Take?

Realistic timelines for every skill level

Company Interview Questions

See what 459+ companies actually ask