Problem 108. Given an unsigned integer x, find the largest y by rearranging the bits in x

Given an unsigned integer x, find the largest y by rearranging the bits in x.

Example:

 Input  x = 10
 Output y is 12

since 10 in binary is 1010 and 12 in binary is 1100.

Solve

Solution Stats

62.81% Correct | 37.19% Incorrect
Last Solution submitted on Jan 23, 2026

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