Unverified50% confidenceSolutionExact time
Multiplying the value of the least significant bit obtained from x & (-x) by the 32-bit de Bruijn constant 0x077CB531 and then right-shifting by 27 bits yields a 5-bit index that uniquely corresponds to a bit position in a precomputed lookup table.
1
Sources
50%
Confidence
Long-term
Relevance
10/12/2026
First Seen
Sources
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