Решение на Домашно 1 - търсене на съкровища от Ивайло Иванов
Резултати
- 20 точки от тестове
- 0 бонус точки
- 20 точки общо
- 5 успешни тест(а)
- 0 неуспешни тест(а)
Код
use std::{collections::HashMap, sync::mpsc};
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct TreasureLoc {
pub lane_index: usize,
pub cell_coord: usize,
pub value: i32,
}
#[derive(Debug, PartialEq, Eq)]
pub enum FoundTreasures {
Big(TreasureLoc),
Small(Vec<TreasureLoc>),
Nothing,
}
pub enum DroneCallBack {
Big(TreasureLoc),
Small(TreasureLoc),
PreventBlock,
Done
}
pub struct Scan<'a> {
// coord of first element in `cells`
pub start_coord: usize,
pub cells: &'a [i32],
}
pub struct Drone {
sender: mpsc::Sender<DroneCallBack>,
lane_index: usize,
}
impl Drone {
pub fn explore(&mut self, scanner: &mut dyn Iterator<Item = Scan<'_>>) {
for scan in scanner {
for (i, &value) in scan.cells.iter().enumerate() {
if value >= 999 {
let treasure = TreasureLoc {
lane_index: self.lane_index,
cell_coord: scan.start_coord + i,
value,
};
if self.sender.send(DroneCallBack::Big(treasure)).is_err() { return; }
return;
}
if value < 999 && value > 0 {
let treasure = TreasureLoc {
lane_index: self.lane_index,
cell_coord: scan.start_coord + i,
value,
};
if self.sender.send(DroneCallBack::Small(treasure)).is_err() { return; }
}
}
if self.sender.send(DroneCallBack::PreventBlock).is_err() { return; } //sending current max after each scan to prevent deadlock
}
if self.sender.send(DroneCallBack::Done).is_err() { return; } //callback when drone exits explore to decrement count
}
}
pub struct DroneController {
drones_count: usize,
sender: mpsc::Sender<DroneCallBack>,
receiver: mpsc::Receiver<DroneCallBack>,
}
impl DroneController {
pub fn new() -> Self {
let (sender, receiver) = mpsc::channel();
Self {
drones_count: 0,
sender,
receiver,
}
}
pub fn create_drone(&mut self, lane_index: usize) -> Drone {
self.drones_count += 1;
Drone {
sender: self.sender.clone(),
lane_index,
}
}
pub fn run(&mut self) -> FoundTreasures {
let mut small_treasures: HashMap<usize, TreasureLoc> = HashMap::new();
loop {
match self.receiver.recv().unwrap() {
DroneCallBack::Big(treasure) => {
return FoundTreasures::Big(treasure)
}
DroneCallBack::Small(treasure) => {
small_treasures.entry(treasure.lane_index)
.and_modify(|t| {if treasure.value > t.value {*t = treasure.clone()}})
.or_insert(treasure);
if small_treasures.values().map(|t| t.value).sum::<i32>() >= 300 {
return FoundTreasures::Small(small_treasures.into_values().collect());
}
}
DroneCallBack::PreventBlock => {
// No action needed, just to prevent blocking
}
DroneCallBack::Done => {
self.drones_count -= 1;
if self.drones_count == 0 {
let total: i32 = small_treasures.values().map(|t| t.value).sum();
if total >= 300 {
return FoundTreasures::Small(small_treasures.into_values().collect());
} else {
return FoundTreasures::Nothing;
}
}
}
}
}
}
}
const fn assert_send_static<T: Send + 'static>() {}
const _: () = assert_send_static::<DroneController>();
const _: () = assert_send_static::<Drone>();
Лог от изпълнението
Updating crates.io index
Locking 46 packages to latest compatible versions
Compiling proc-macro2 v1.0.104
Compiling unicode-ident v1.0.22
Compiling quote v1.0.42
Compiling libc v0.2.178
Compiling syn v2.0.111
Compiling futures-core v0.3.31
Compiling pin-project-lite v0.2.16
Compiling futures-sink v0.3.31
Compiling parking_lot_core v0.9.12
Compiling futures-channel v0.3.31
Compiling cfg-if v1.0.4
Compiling pin-utils v0.1.0
Compiling slab v0.4.11
Compiling futures-io v0.3.31
Compiling scopeguard v1.2.0
Compiling memchr v2.7.6
Compiling futures-task v0.3.31
Compiling smallvec v1.15.1
Compiling lock_api v0.4.14
Compiling errno v0.3.14
Compiling signal-hook-registry v1.4.8
Compiling parking_lot v0.12.5
Compiling mio v1.1.1
Compiling futures-macro v0.3.31
Compiling tokio-macros v2.6.0
Compiling socket2 v0.6.1
Compiling futures-util v0.3.31
Compiling bytes v1.11.0
Compiling tokio v1.48.0
Compiling futures-executor v0.3.31
Compiling futures v0.3.31
Compiling solution v0.1.0 (/tmp/d20251229-4108951-rqr6c8/solution)
warning: function `assert_send_static` is never used
--> src/lib.rs:130:10
|
130 | const fn assert_send_static<T: Send + 'static>() {}
| ^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(dead_code)]` on by default
warning: `solution` (lib) generated 1 warning
Finished `test` profile [unoptimized + debuginfo] target(s) in 17.61s
Running tests/solution_test.rs (target/debug/deps/solution_test-f512224d9fb3caf8)
running 5 tests
test solution_test::test_big_treasure ... ok
test solution_test::test_nothing ... ok
test solution_test::test_small_treasure ... ok
test solution_test::test_small_treasure_2 ... ok
test solution_test::test_return_immediately_when_found ... ok
test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s