Top Two Pointers Problems for Coding Interviews
Master the Two Pointers pattern with this curated list of 18 must-solve problems. Each problem is ranked by interview frequency, difficulty, and learning value. Use two pointers converging or diverging on sorted arrays or linked lists.
Ranking Criteria: Interview frequency (40%), Learning value (30%), Difficulty progression (20%), Company tag count (10%).
Ranking Methodology
We rank Two Pointers problems using four criteria:
Must-Solve Problems (Easy)
5 easy problems focusing on basic pattern recognition and implementation.
Pro tip: Solve these first to build confidence. Target: 15 minutes each.
Practice all Easy Two Pointers problems on W Code with instant feedback and solution explanations.
Core Problems (Medium)
9 medium problems focusing on combining the pattern with other techniques.
Pro tip: These form the core of your interview prep. Target: 25 minutes each.
Practice all Medium Two Pointers problems on W Code with instant feedback and solution explanations.
Advanced Problems (Hard)
5 hard problems focusing on complex variations and optimization.
Pro tip: Only attempt after mastering Medium. Target: 40 minutes with hints if needed.
Practice all Hard Two Pointers problems on W Code with instant feedback and solution explanations.
Study Plan
Week 1: Solve all Easy problems to build pattern recognition
Week 2: Tackle Medium problems — aim for 2-3 per day
Week 3: Attempt Hard problems with 45-minute timer
Week 4: Re-solve problems you struggled with
Daily target: 2 problems minimum, 4 maximum (quality over quantity).
Use the Two Pointers template from W Code to develop muscle memory for the pattern structure.
Tips for ${pattern.name} Problems
Frequently Asked Questions
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Practice all 18 Two Pointers problems with AI hints and step-by-step solutions on W Code. Start free!
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