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-3 bytes

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edited May 16, 2022 at 13:17

K (ngn/k), 1010 7 bytes

{#(+/2\x)^0}

Straightforward solution.Thanks @coltim for -3 bytes by suggesting me that I can just take the sum instead of the count of 1s

Cast the numberinteger into base 2, remove all the 0s, then return the length of the arraysum.

{#(2\x)^0}

Straightforward solution. Cast the number into base 2, remove all the 0s, then return the length of the array.

{+/2\x}

Thanks @coltim for -3 bytes by suggesting me that I can just take the sum instead of the count of 1s

Cast the integer into base 2, then sum.

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created May 8, 2022 at 0:19

{#(2\x)^0}

Straightforward solution. Cast the number into base 2, remove all the 0s, then return the length of the array.