Done two-pointers-1

[sainathek1999]

No description provided.

[super30admin]

Strengths:

• The student has a good understanding of the two-pointer technique and has applied it correctly in all three problems.
• The code is clean, well-commented, and easy to follow.
• The student has correctly handled edge cases, such as skipping duplicates in the threeSum problem.

Areas for Improvement:

• In problem1.java, the student could consider adding a brief comment explaining why the mid pointer is not incremented when swapping with the high pointer (since the new value at mid needs to be re-evaluated).
• In problem2.java, the student could add a check for the array length being less than 3 to immediately return an empty list, though this is a minor optimization.
• In problem3.java, the student could consider adding a comment explaining why moving the pointer with the smaller height is the correct approach, as this might not be immediately obvious to all readers.

[super30admin]

• Strengths:
  • The student demonstrates a strong understanding of the two-pointer technique across all problems.
  • The code is clean, well-commented, and follows best practices.
  • The student handles edge cases and duplicates effectively, especially in the threeSum problem.
• Areas for Improvement:
  • In Problem1 (sortColors), the student could explicitly mention why the mid pointer is not incremented when swapping with the high pointer (to re-check the new value at mid after swap).
  • In Problem2 (threeSum), the student could add a brief comment explaining why sorting is necessary for the two-pointer approach to work.