Subsets & Combinations - Subsets Using Bitmask
Consider the iterative subset generation code. What is the output of
subsets([0])?Consider the iterative subset generation code. What is the output of subsets([0])?
medium🧾 Code Trace Q4 of Q15
Step-by-Step Solution
Solution:
Step 1: Initial result
Start with result = [[]].Step 2: Add subsets with 0
For subset [], add [0], so new_subsets = [[0]]. Extend result to [[], [0]].Final Answer:
Option D -> Option DQuick Check:
Empty subset and subset with 0 included [OK]
Quick Trick: Empty subset always present [OK]
Common Mistakes:
MISTAKES- Missing empty subset
- Output order confusion
Trap Explanation:
PITFALL- Candidates confuse order or omit empty subset for single element input.
Interviewer Note:
CONTEXT- Tests handling of edge cases in subset generation.
Master "Subsets Using Bitmask" in Subsets & Combinations
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Subsets & Combinations Quizzes