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Smallest Number With All Set Bits
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Smallest Number With All Set Bits

MediumPython

Problem

Smallest Number With All Set Bits (LeetCode)

Asked in the Round 1: Problem Solving stage. Linked LeetCode problem.

Given a positive integer n, return the smallest integer greater than or equal to n whose binary representation consists entirely of 1 bits.

Input and Output

Implement smallest_number(n), accepting an integer and returning an integer.

Constraints

  • 1 <= n <= 10^9
  • The result must be greater than or equal to n
  • The result's binary representation must contain only set bits

Function Signature

def smallest_number(n):
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