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2024 Day 13 Spelling

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Burnus 2025-01-05 11:58:11 +01:00
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commit bf4577f6e0
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2024/day13_claw_contraption/src/lib.rs
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@ -69,7 +69,7 @@ impl<'a> TryFrom<&'a str> for Machine {
impl Machine {
fn prize_cost(&self) -> Option<usize> {
// Determine the winning combination using matrix inversion. This method delivers the only
// combination that will work (provided the button vectors are lenearly independent), but
// combination that will work (provided the button vectors are linearly independent), but
// the result may be non-integer, in which case there is no valid solution.
let inverse_determinant = 1.0 / ((self.btn_a.0*self.btn_b.1) as f64 - (self.btn_a.1*self.btn_b.0) as f64);
let a_presses = (inverse_determinant * (