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Learn With Champak · 22 August 2026

Saturday Questions: Sliding Window & Two Pointers

Five progressive Python DSA problems on two pointers, fixed windows, variable windows and interview-style substring problems. Solve each one before opening its hint.

How to participate

  1. Attempt every problem before opening its hint.
  2. First write the straightforward approach, then look for repeated work.
  3. Test your Python program with the examples and your own edge cases.
  4. Send your solutions or questions to Champak Roy on WhatsApp.

Send answers on WhatsApp