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What is the output of the bitmask DP iterative tabulation code when n = 1?

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Bit Manipulation - Generate All Permutations Using Bitmask DP
What is the output of the bitmask DP iterative tabulation code when n = 1?
A[[]]
B[[0]]
C[[0, 0]]
D[]
Step-by-Step Solution
Solution:

  1. Step 1: Initialize dp with size 2 (for n=1)

    dp[0] = [[]], dp[1] initially empty.

  2. Step 2: Add element 0 to empty permutation

    dp[1] = [[0]] since only one element exists.

  3. Final Answer:

    Option B -> Option B

  4. Quick Check:

    Single element permutation is [[0]] [OK]
Quick Trick: For n=1, only one permutation: [0] [OK]
Common Mistakes:
MISTAKES
  • Confusing empty permutation with single element permutation
Trap Explanation:
PITFALL
  • Candidates sometimes return empty list or double elements for n=1.
Interviewer Note:
CONTEXT
  • Tests boundary condition handling in bitmask DP iterative code
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