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Course Categories
Algorithms
Master fundamental algorithms and data structures
System Design
Learn to design scalable systems
Advanced Topics
Deep dive into complex problems
Your Progress
Course Completion
Recent Activity
Completed Binary Search
2 hours ago
Started Dynamic Programming
Yesterday
Earned Advanced Algorithm Badge
2 days ago
| Status | Title | Difficulty | Acceptance | Solutions |
|---|---|---|---|---|
| Two Sum | Easy | 48.2% | View Solutions | |
| Add Two Numbers | Medium | 35.7% | View Solutions | |
| Longest Substring Without Repeating Characters | Hard | 32.1% | View Solutions |
Showing 1 to 10 of 97 results
Learning Roadmap
Data Structures
Arrays, Linked Lists, Trees, Graphs
Algorithms
Sorting, Searching, Dynamic Programming
System Design
Scalability, Database Design, APIs
Recommended Next Steps
Complete Binary Search Tree Implementation
Estimated time: 2 hours
Practice Graph Traversal Problems
5 problems remaining
Problems Solved
248
+12 this weekSuccess Rate
67.5%
+2.3% improvementStudy Time
86h
+5h from last weekCurrent Streak
12 days
Best: 15 daysProblem Solving Progress
Difficulty Distribution
Recent Performance
| Problem | Difficulty | Time Spent | Status | Date |
|---|---|---|---|---|
| Binary Tree Traversal | Medium | 45 min | Solved | Today |
| Dynamic Programming | Hard | 90 min | Attempted | Yesterday |
Video Lessons
Binary Search Trees
Learn implementation and traversal techniques
Dynamic Programming
Master the art of solving complex problems
System Design
Scalable architecture and best practices
Continue Watching
Graph Algorithms
Understanding DFS and BFS
System Design
Load Balancing
Distribute network traffic efficiently across servers
Database Scaling
Strategies for handling large-scale data
Microservices
Building scalable distributed systems
Recent System Designs
| Project | Type | Components | Status | Last Updated |
|---|---|---|---|---|
|
|
Distributed System |
Load Balancer
Cache
|
Completed | 2 days ago |
|
|
Real-time System |
WebSocket
Message Queue
|
In Progress | Yesterday |
Recommended Resources
System Design Primer
Comprehensive guide to distributed systems
Design Patterns
Best practices and common patterns
Problem Solutions
def two_sum(nums, target):
seen = {}
for i, num in enumerate(nums):
complement = target - num
if complement in seen:
return [seen[complement], i]
seen[num] = i
return []
Test Cases
Performance
Similar Problems
Learning Path
Beginner
CompletedMaster the fundamentals of data structures and algorithms
- Arrays & Strings
- Linked Lists
- Basic Recursion
Intermediate
In ProgressAdvance your problem-solving skills with complex algorithms
- Trees & Graphs
- Dynamic Programming
- Backtracking
Advanced
LockedExpert-level algorithms and system design concepts
- Advanced Graph Algorithms
- System Design
- Distributed Systems
Next Steps
Complete Dynamic Programming Module
4 lessons remaining • Estimated 2 hours
Practice Tree Traversal Problems
8 problems in queue • Medium difficulty
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