One more alternative :) pub fn fib(n: u128) -> u128 { let mut r = (0, 1); for _ in 0..n { r = (r.1, r.0 + r.1); } r.0 }
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One more alternative :)
pub fn fib(n: u128) -> u128 {
let mut r = (0, 1);
for _ in 0..n { r = (r.1, r.0 + r.1); }
r.0
}