Pythagorean quadruples: Difference between revisions
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(fix tests, port another answer from scala) |
m (→{{header|Rust}}: correction) |
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This is equivalent to https://oeis.org/A094958 |
This is equivalent to https://oeis.org/A094958 |
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which simply contains positive integers of the form 2^n or 5*2^n |
which simply contains positive integers of the form 2^n or 5*2^n. Multiple implementations are provided. |
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<lang rust> |
<lang rust> |
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fn a094958_filter() -> Vec<u16> { |
fn a094958_filter() -> Vec<u16> { |
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(1..2200) // ported from |
(1..2200) // ported from Sidef |
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.filter(|n| ((n & (n - 1) == 0) || (n % 5 == 0 && ((n / 5) & (n / 5 - 1) == 0)))) |
.filter(|n| ((n & (n - 1) == 0) || (n % 5 == 0 && ((n / 5) & (n / 5 - 1) == 0)))) |
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.collect() |
.collect() |
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