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Become the Engineer Companies Want to Hire.
Practice. Build. Get Hired.

Stop grinding endless random LeetCode problems. Master production-grade system architecture, real-time voice AI mock interviews, and company-specific rubrics designed by principal engineers at Stripe, Vercel, and Linear.

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4.9/5 Rating

Trusted by 150,000+ developers at Google, Stripe, Meta & Vercel.

codehurdle.app/sandbox/live
FILE: main_roadmap.tsV8 ENGINE • 60 FPS
✔ 14/14 Modules Mastered • Tier 1 Readiness
Latency: 12ms

Master the 14 Patterns That Solve 90% of Coding Interviews.

Stop grinding hundreds of isolated questions. CodeHurdle organizes data structures and algorithms around core structural blueprints so you can formulate optimal space-time solutions instantly.

Zero-Guesswork Roadmap

Linear curriculum from basic arrays to advanced dynamic programming.

Verified Interview Experiences

Questions tagged from recent interview cycles at Google, Meta, Stripe & Vercel.

Production-Grade IDE

Instant compilation with automated test case evaluation and memory profiling.

ALGORITHMIC ENGINE
14/14 PATTERNS
IN
LeetCode #209: Subarray SumTarget Sum ≥ 7 • Array [2, 3, 1, 2, 4, 3]
Unstructured
↓ Pattern Recognition Transformation
SLIDING WINDOW PATTERN
Time: O(N) • Space: O(1)
while (sum >= target) {
  minLen = Math.min(minLen, right - left + 1);
  sum -= nums[left++];
}
Result: Optimal Complexity Reached✓ 100% Acceptance Rate

Learn Everything in One Place.

Every core data structure, algorithm category, and system design concept organized in one responsive hub.

Essential

Arrays & Matrices

65+ Problems • Easy to Hard

Contiguous memory structures, prefix sums, 2D matrix rotations, and element swapping techniques.

Two Sum3SumContainer With Most Water
Explore Track
Most Tested

Dynamic Programming

80+ Problems • Medium to Hard

State transition formulas, memoization tables, 1D/2D DP, subset knapsack, and sequence matching.

Climbing StairsCoin ChangeLISEdit Distance
Explore Track
High Frequency

Trees & Tries

75+ Problems • Medium to Hard

Binary Search Trees, DFS/BFS traversals, lowest common ancestor, prefix trees, and segment trees.

Binary Tree Max PathSerialize BTImplement Trie
Explore Track
Essential

Strings & Parsing

50+ Problems • Easy to Medium

String manipulation, anagram detection, pattern matching (KMP, Rabin-Karp), and palindromes.

Longest Palindromic SubstringValid AnagramGroup Anagrams
Explore Track
High Frequency

Graphs & Networks

60+ Problems • Medium to Hard

Dijkstra's algorithm, topological sort, union-find (DSU), minimum spanning trees, and cycle detection.

Course ScheduleNumber of IslandsAlien Dictionary
Explore Track
Core

Linked Lists

35+ Problems • Easy to Medium

Pointers, node mutations, cycle detection, reordering, and merging sorted structures.

Reverse ListMerge K ListsLRU Cache
Explore Track

Production-Grade Online Compiler.

Write, execute, and benchmark solutions in a low-latency environment with instant automated test evaluation.

sandbox_v8_execution.py
class Solution:
    def twoSum(self, nums: list[int], target: int) -> list[int]:
        seen = {}
        for i, num in enumerate(nums):
            complement = target - num
            if complement in seen:
                return [seen[complement], i]
            seen[num] = i
        return []
35/35 TEST CASES PASSED
Time: O(N) OptimalMemory: 14.2 MB (Top 98.4%)

Track Every Metric That Matters.

Gain full visibility into your streak consistency, solved problems by difficulty, and topic proficiency ratings.

DB

Candidate Performance Hub

Live Readiness Metric • 92.8%
FAANG Tier-1 Ready
Daily Activity Streak: 24 Days Active
Topic Mastery Level:
Arrays & Strings94%
Trees & Binary Search88%
Dynamic Programming76%
Graph Algorithms82%
System Design Basics70%
Solved Problems
261 / 450

92 Easy • 124 Medium • 45 Hard

Algorithm Speed
Top 2.1%

Average solution speed: 12 mins

Company Match
96.4%

High alignment with Google & Meta rubrics

From Zero to Interview Ready.

A guided, step-by-step vertical roadmap engineered to build deep algorithmic intuition.

Phase 1: Beginner 2-3 Weeks

Data Structure Foundations

Master essential memory layouts, contiguous vs linked memory, and pointer mutations.

Arrays & Dynamic AllocationStrings & ASCII ManipulationSingly & Doubly Linked ListsStacks & Queues
Phase 2: Intermediate 3-4 Weeks

Algorithmic Paradigms & Searching

Deep dive into tree traversals, graph recursion, binary search bounds, and heaps.

Binary Trees & BSTGraph Traversals (BFS/DFS)Binary Search VariantsHeaps & Priority Queues
Phase 3: Advanced 4 Weeks

14 Core Coding Patterns & DP

Recognize problem archetypes instantly and solve 1D/2D Dynamic Programming state transitions.

Sliding Window & Two PointersMonotonic Stack & Queue0/1 Knapsack & Grid DPInterval Scheduling
Phase 4: Interview Ready 2 Weeks

Company Kits & Real Mock Simulations

Solve top tagged questions from Google, Meta, Stripe & Vercel with real-time rubric feedback.

Top 50 Google QuestionsTop 50 Meta QuestionsSystem Design FundamentalsMock Interview Simulations

Target Your Dream Company.

Company-specific question kits, actual interview frequencies, and prep timelines.

Google

Hard
Target Role:L3 - L5
Est. Prep Time: 3-4 Weeks
Tagged Questions:142+ Qs
High Weightage Topics:
GraphsDPTrees
View Question Kit

Meta

Medium-Hard
Target Role:E4 - E5
Est. Prep Time: 3 Weeks
Tagged Questions:168+ Qs
High Weightage Topics:
Binary SearchTwo Pointers
View Question Kit

Stripe

Medium
Target Role:L2 - L3
Est. Prep Time: 2-3 Weeks
Tagged Questions:110+ Qs
High Weightage Topics:
API DesignRate Limiter
View Question Kit

Amazon

Medium
Target Role:SDE 1 - 2
Est. Prep Time: 4 Weeks
Tagged Questions:195+ Qs
High Weightage Topics:
BFS/DFSPriority Queue
View Question Kit

Microsoft

Medium
Target Role:Level 59-63
Est. Prep Time: 2 Weeks
Tagged Questions:128+ Qs
High Weightage Topics:
ArraysLinked Lists
View Question Kit

Uber

Hard
Target Role:L4 - L5
Est. Prep Time: 3 Weeks
Tagged Questions:94+ Qs
High Weightage Topics:
GraphsIntervals
View Question Kit

Atlassian

Medium
Target Role:P30 - P40
Est. Prep Time: 2 Weeks
Tagged Questions:72+ Qs
High Weightage Topics:
OOD DesignLRU Cache
View Question Kit

Adobe

Medium
Target Role:MTS / Senior
Est. Prep Time: 2 Weeks
Tagged Questions:86+ Qs
High Weightage Topics:
MatrixStack
View Question Kit

Trusted by Engineers Who Got Offers.

Real stories from candidates who used CodeHurdle to land senior roles at top tech companies.

L5 Offer Secured ($340k TC)
"CodeHurdle's pattern-based approach completely transformed how I prepare for tech interviews. Instead of memorizing 400+ questions, I mastered 14 core patterns and cleared my L5 onsite at Google with 4 Strong Hire ratings."
Alex Rivera

Alex Rivera

Senior Software Engineer @ Google

4 Months Preparation
Vercel Offer

"The interactive compiler environment and real interview experiences were spot on. I knew exactly what edge cases to watch for during live coding."

Sarah Chen
Sarah Chen

Frontend Engineer @ Vercel

Stripe Staff Offer

"The real interview experience logs shared on CodeHurdle gave me a 2-week head start on the specific system design questions Stripe asks."

Marcus Vance
Marcus Vance

Staff Infra Engineer @ Stripe

Frequently Asked Questions.

Everything you need to know about our pattern curriculum, practice compiler, and company kits.

LeetCode provides an unorganized bank of 3,000+ random problems without a clear trajectory. CodeHurdle organizes learning around 14 foundational algorithmic patterns (Sliding Window, Two Pointers, Monotonic Stack, etc.) so that mastering one pattern unlocks 50+ related problems.
Yes! Our curriculum starts from absolute foundations (Arrays, Strings, Linked Lists, Big-O Notation) and smoothly scales up to complex Dynamic Programming, Graph algorithms, and System Design basics.
Our execution environment supports C++ (20), Python (3.12), Java (21), TypeScript (5.4), and Go (1.22). All code runs in isolated sandboxes with instant automated test evaluation.
Our company interview kits for Google, Meta, Stripe, Amazon, Microsoft, Uber, and Vercel are updated weekly based on real candidate debriefs and verified interview experiences.
Most engineers spend 3 to 4 months following our structured vertical roadmap (spending 8-10 hours per week) to reach a top-tier candidate readiness score.

Ready to Master DSA & Land Your Next Offer?

Join 150,000+ software engineers mastering algorithms, company questions, and real interview patterns on CodeHurdle.

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14-Day Free Access
Instant Compiler Access