Hard Level Questions
Challenge yourself with these advanced problems that require deep algorithmic knowledge and optimization techniques.
What to Expect in Hard Questions
- Advanced algorithmic concepts and complex data structures
- Problems that combine multiple algorithms and techniques
- Heavy optimization requirements, often requiring mathematical insights
- Edge cases and corner conditions that test thorough understanding
- Suitable for experienced programmers and algorithm specialists
All Hard Questions (7)
Hard Questions Study Plan
Recommended Approach
- 1Study advanced data structures (segment trees, Fenwick trees)
- 2Focus on optimizing both time and space complexity
- 3Learn to recognize problem variations and apply patterns
- 4Practice handling edge cases and stress testing your solutions
Time Management
For hard questions, you should aim to:
Understanding the problem5-7 min
Planning your approach10-15 min
Coding the solution20-30 min
Testing & refining10-15 min
In a typical interview setting, you should be able to completely solve a hardquestion in 35-45 minutes.