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Решение на упр.03 задача 2 от Божидар Виденов

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Резултати

  • 1 точка от тестове
  • 0 бонус точки
  • 1 точка общо
  • 1 успешни тест(а)
  • 0 неуспешни тест(а)

Код

pub enum VehicleKind {
Car,
Truck,
Motorcycle,
Bicycle,
}
pub struct Vehicle {
kind: VehicleKind,
fuel: f64,
distance: f64,
}
pub enum DriveError {
NotEnoughFuel { needed: f64, have: f64 },
}
impl Vehicle {
pub fn new(kind: VehicleKind, fuel: f64) -> Self {
Self {
kind: kind,
fuel: fuel,
distance: 0.0,
}
}
pub fn drive(&mut self, km: f64) -> Result<(), DriveError> {
let needed = match self.kind {
VehicleKind::Car => km * 0.07,
VehicleKind::Truck => km * 0.15,
VehicleKind::Motorcycle => km * 0.05,
VehicleKind::Bicycle => km * 0.0,
};
if needed <= self.fuel {
self.distance += km;
self.fuel -= needed;
return Ok(());
}
return Err(DriveError::NotEnoughFuel {
needed: needed,
have: self.fuel,
});
}
}

Лог от изпълнението

Updating crates.io index
     Locking 17 packages to latest compatible versions
   Compiling proc-macro2 v1.0.103
   Compiling unicode-ident v1.0.22
   Compiling quote v1.0.41
   Compiling futures-core v0.3.31
   Compiling futures-sink v0.3.31
   Compiling futures-channel v0.3.31
   Compiling memchr v2.7.6
   Compiling syn v2.0.108
   Compiling futures-io v0.3.31
   Compiling pin-project-lite v0.2.16
   Compiling pin-utils v0.1.0
   Compiling slab v0.4.11
   Compiling futures-task v0.3.31
   Compiling solution v0.1.0 (/tmp/d20251030-1757769-12zsmk2/solution)
   Compiling futures-macro v0.3.31
   Compiling futures-util v0.3.31
   Compiling futures-executor v0.3.31
   Compiling futures v0.3.31
warning: variants `Truck`, `Motorcycle`, and `Bicycle` are never constructed
 --> tests/../src/lib.rs:3:5
  |
1 | pub enum VehicleKind {
  |          ----------- variants in this enum
2 |     Car,
3 |     Truck,
  |     ^^^^^
4 |     Motorcycle,
  |     ^^^^^^^^^^
5 |     Bicycle,
  |     ^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: fields `needed` and `have` are never read
  --> tests/../src/lib.rs:15:21
   |
15 |     NotEnoughFuel { needed: f64, have: f64 },
   |     -------------   ^^^^^^       ^^^^
   |     |
   |     fields in this variant

warning: `solution` (test "solution_test") generated 2 warnings
    Finished `test` profile [unoptimized + debuginfo] target(s) in 8.21s
     Running tests/solution_test.rs (target/debug/deps/solution_test-bfd50394249726db)

running 1 test
test solution_test::test_basic ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

История (2 версии и 0 коментара)

Божидар качи първо решение на 23.10.2025 19:49 (преди 8 дена)

Божидар качи решение на 23.10.2025 19:51 (преди 8 дена)

-enum VehicleKind {
+pub enum VehicleKind {
Car,
Truck,
Motorcycle,
Bicycle,
}
-struct Vehicle {
+pub struct Vehicle {
kind: VehicleKind,
fuel: f64,
distance: f64,
}
-enum DriveError {
+pub enum DriveError {
NotEnoughFuel { needed: f64, have: f64 },
}
impl Vehicle {
- fn new(kind: VehicleKind, fuel: f64) -> Self {
+ pub fn new(kind: VehicleKind, fuel: f64) -> Self {
Self {
kind: kind,
fuel: fuel,
distance: 0.0,
}
}
- fn drive(&mut self, km: f64) -> Result<(), DriveError> {
+ pub fn drive(&mut self, km: f64) -> Result<(), DriveError> {
let needed = match self.kind {
VehicleKind::Car => km * 0.07,
VehicleKind::Truck => km * 0.15,
VehicleKind::Motorcycle => km * 0.05,
VehicleKind::Bicycle => km * 0.0,
};
if needed <= self.fuel {
self.distance += km;
self.fuel -= needed;
return Ok(());
}
return Err(DriveError::NotEnoughFuel {
needed: needed,
have: self.fuel,
});
}
}