14 lines
241 B
Rust
14 lines
241 B
Rust
// run-pass
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fn main() {
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assert_eq!(count_members(&[1, 2, 3, 4]), 4);
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}
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fn count_members(v: &[usize]) -> usize {
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match *v {
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[] => 0,
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[_] => 1,
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[_, ref xs @ ..] => 1 + count_members(xs)
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}
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}
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