Completed s30 Competitive_Coding-3

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Pascal's Triangle (kdiffpairs.py)

1. Wrong Problem: The student submitted a solution for "K Diff Pairs in an Array" instead of "Pascal's Triangle". This suggests either:

   • Confusion about which problem to solve
   • Copy-paste error from a different submission
   • Working on multiple problems simultaneously

2. Code Quality (for the submitted solution): The K Diff Pairs solution is well-structured with:

   • Clear variable names (seen, pairs)
   • Handles edge case (k < 0)
   • Uses sets appropriately for O(1) lookups
   • Properly adds both directions of pairs

3. Correctness: The K Diff Pairs solution appears correct for its intended problem, but it doesn't solve the Pascal's Triangle problem at all.

4. Recommendation: The student needs to submit a solution specifically for the Pascal's Triangle problem as described in the problem statement.

VERDICT: NEEDS_IMPROVEMENT

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K-diff Pairs in an Array (pascaltriangle.py)

The submitted solution solves a completely different problem. The code for Pascal's Triangle is well-written with clear structure and appropriate comments, but it does not address the K-diff Pairs problem at all.

To solve the K-diff Pairs problem correctly, you would need to:

• Use a hash map to count element frequencies
• Iterate through unique elements and check for complements (num + k)
• Handle the special case where k = 0 (count elements with frequency > 1)
• Return the count of valid unique pairs

Please submit a solution that addresses the actual problem assigned.

VERDICT: NEEDS_IMPROVEMENT