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Day 17 part 2

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This commit is contained in:
Daniel Flanagan 2021-12-17 11:39:36 -06:00
parent 175f0ca59b
commit 3a8987fa4b
Signed by: lytedev
GPG key ID: 5B2020A0F9921EF4
1 changed files with 6 additions and 4 deletions
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10
2021/rust/day17.rs
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@ -58,12 +58,14 @@ fn simulate_shot(initial_vel: Vec2, target: &Rect) -> Result<(Vec2, i64), (Vec2,
Err((Vec2 { x, y }, last_pos)) Err((Vec2 { x, y }, last_pos))
} }
fn trick_shot(r: &Rect) -> Option<i64> { fn trick_shot(r: &Rect) -> (Option<i64>, i64) {
let mut result = None; let mut result = None;
for x in 1..=r.top_left.x { let mut valid_shots = 0;
for x in 1..=r.bottom_right.x {
for y in r.bottom_right.y..=2000 { for y in r.bottom_right.y..=2000 {
println!("Simulating {}, {}", x, y); println!("Simulating {}, {}", x, y);
if let Ok((v, hy)) = simulate_shot(Vec2 { x, y }, r) { if let Ok((v, hy)) = simulate_shot(Vec2 { x, y }, r) {
valid_shots += 1;
if result.is_some() { if result.is_some() {
if hy > result.unwrap() { result = Some(hy); } if hy > result.unwrap() { result = Some(hy); }
} else { } else {
@ -73,12 +75,12 @@ fn trick_shot(r: &Rect) -> Option<i64> {
} }
} }
} }
result (result, valid_shots)
} }
fn main() { fn main() {
let r = parse_target_rect(&day_input(17).trim()); let r = parse_target_rect(&day_input(17).trim());
println!("Trick Shot Apex: {}", trick_shot(&r).unwrap()); println!("Trick Shot Data: {:#?}", trick_shot(&r));
} }
#[cfg(test)] #[cfg(test)]