Bit Manipulation - Maximum Product of Word Lengths
Consider the same code snippet for maxProduct but with input words = ["", "a"]. What is the returned maximum product?
Consider the same code snippet for maxProduct but with input words = ["", "a"]. What is the returned maximum product?
medium🧾 Code Trace Q4 of Q15
Step-by-Step Solution
Solution:
Step 1: Compute masks and lengths
"" has length 0 and mask 0; "a" has length 1 and mask with bit for 'a'.Step 2: Check pairs
Product of lengths is 0*1=0; no pair yields product > 0.Final Answer:
Option B -> Option BQuick Check:
Empty word yields zero product [OK]
Quick Trick: Empty word length zero yields zero product [OK]
Common Mistakes:
MISTAKES- Assuming empty word contributes length
- Confusing zero product with one
Trap Explanation:
PITFALL- Candidates often forget empty strings have length zero, leading to incorrect nonzero product.
Interviewer Note:
CONTEXT- Tests code behavior on edge cases with empty or single-word input
Master "Maximum Product of Word Lengths" in Bit Manipulation
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Bit Manipulation Quizzes