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checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "notify"
|
|
||||||
version = "4.0.17"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "ae03c8c853dba7bfd23e571ff0cff7bc9dceb40a4cd684cd1681824183f45257"
|
|
||||||
dependencies = [
|
|
||||||
"bitflags",
|
|
||||||
"filetime",
|
|
||||||
"fsevent",
|
|
||||||
"fsevent-sys",
|
|
||||||
"inotify",
|
|
||||||
"libc",
|
|
||||||
"mio",
|
|
||||||
"mio-extras",
|
|
||||||
"walkdir",
|
|
||||||
"winapi 0.3.9",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "num-traits"
|
|
||||||
version = "0.2.14"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
|
|
||||||
dependencies = [
|
|
||||||
"autocfg",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "number_prefix"
|
|
||||||
version = "0.4.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "once_cell"
|
|
||||||
version = "1.10.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "predicates"
|
|
||||||
version = "1.0.8"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "f49cfaf7fdaa3bfacc6fa3e7054e65148878354a5cfddcf661df4c851f8021df"
|
|
||||||
dependencies = [
|
|
||||||
"difference",
|
|
||||||
"float-cmp",
|
|
||||||
"normalize-line-endings",
|
|
||||||
"predicates-core",
|
|
||||||
"regex",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "predicates-core"
|
|
||||||
version = "1.0.2"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "57e35a3326b75e49aa85f5dc6ec15b41108cf5aee58eabb1f274dd18b73c2451"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "predicates-tree"
|
|
||||||
version = "1.0.3"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "d7dd0fd014130206c9352efbdc92be592751b2b9274dff685348341082c6ea3d"
|
|
||||||
dependencies = [
|
|
||||||
"predicates-core",
|
|
||||||
"treeline",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "proc-macro2"
|
|
||||||
version = "1.0.28"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "5c7ed8b8c7b886ea3ed7dde405212185f423ab44682667c8c6dd14aa1d9f6612"
|
|
||||||
dependencies = [
|
|
||||||
"unicode-xid",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "quote"
|
|
||||||
version = "1.0.9"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
|
|
||||||
dependencies = [
|
|
||||||
"proc-macro2",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "redox_syscall"
|
|
||||||
version = "0.2.10"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
|
|
||||||
dependencies = [
|
|
||||||
"bitflags",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "regex"
|
|
||||||
version = "1.5.5"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
|
|
||||||
dependencies = [
|
|
||||||
"aho-corasick",
|
|
||||||
"memchr",
|
|
||||||
"regex-syntax",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "regex-syntax"
|
|
||||||
version = "0.6.25"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "rustlings"
|
|
||||||
version = "5.4.0"
|
|
||||||
dependencies = [
|
|
||||||
"argh",
|
|
||||||
"assert_cmd",
|
|
||||||
"console",
|
|
||||||
"glob",
|
|
||||||
"home",
|
|
||||||
"indicatif",
|
|
||||||
"notify",
|
|
||||||
"predicates",
|
|
||||||
"regex",
|
|
||||||
"serde",
|
|
||||||
"serde_json",
|
|
||||||
"toml",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "ryu"
|
|
||||||
version = "1.0.5"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "same-file"
|
|
||||||
version = "1.0.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
|
|
||||||
dependencies = [
|
|
||||||
"winapi-util",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "serde"
|
|
||||||
version = "1.0.129"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "d1f72836d2aa753853178eda473a3b9d8e4eefdaf20523b919677e6de489f8f1"
|
|
||||||
dependencies = [
|
|
||||||
"serde_derive",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "serde_derive"
|
|
||||||
version = "1.0.129"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "e57ae87ad533d9a56427558b516d0adac283614e347abf85b0dc0cbbf0a249f3"
|
|
||||||
dependencies = [
|
|
||||||
"proc-macro2",
|
|
||||||
"quote",
|
|
||||||
"syn",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "serde_json"
|
|
||||||
version = "1.0.81"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "9b7ce2b32a1aed03c558dc61a5cd328f15aff2dbc17daad8fb8af04d2100e15c"
|
|
||||||
dependencies = [
|
|
||||||
"itoa",
|
|
||||||
"ryu",
|
|
||||||
"serde",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "slab"
|
|
||||||
version = "0.4.4"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "c307a32c1c5c437f38c7fd45d753050587732ba8628319fbdf12a7e289ccc590"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "syn"
|
|
||||||
version = "1.0.75"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "b7f58f7e8eaa0009c5fec437aabf511bd9933e4b2d7407bd05273c01a8906ea7"
|
|
||||||
dependencies = [
|
|
||||||
"proc-macro2",
|
|
||||||
"quote",
|
|
||||||
"unicode-xid",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "terminal_size"
|
|
||||||
version = "0.1.17"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "633c1a546cee861a1a6d0dc69ebeca693bf4296661ba7852b9d21d159e0506df"
|
|
||||||
dependencies = [
|
|
||||||
"libc",
|
|
||||||
"winapi 0.3.9",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "toml"
|
|
||||||
version = "0.5.9"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
|
|
||||||
dependencies = [
|
|
||||||
"serde",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "treeline"
|
|
||||||
version = "0.1.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "unicode-segmentation"
|
|
||||||
version = "1.8.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "unicode-width"
|
|
||||||
version = "0.1.8"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "unicode-xid"
|
|
||||||
version = "0.2.2"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "walkdir"
|
|
||||||
version = "2.3.2"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
|
|
||||||
dependencies = [
|
|
||||||
"same-file",
|
|
||||||
"winapi 0.3.9",
|
|
||||||
"winapi-util",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi"
|
|
||||||
version = "0.2.8"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi"
|
|
||||||
version = "0.3.9"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
|
||||||
dependencies = [
|
|
||||||
"winapi-i686-pc-windows-gnu",
|
|
||||||
"winapi-x86_64-pc-windows-gnu",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi-build"
|
|
||||||
version = "0.1.1"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi-i686-pc-windows-gnu"
|
|
||||||
version = "0.4.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi-util"
|
|
||||||
version = "0.1.5"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
|
||||||
dependencies = [
|
|
||||||
"winapi 0.3.9",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "winapi-x86_64-pc-windows-gnu"
|
|
||||||
version = "0.4.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "ws2_32-sys"
|
|
||||||
version = "0.2.1"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
|
|
||||||
dependencies = [
|
|
||||||
"winapi 0.2.8",
|
|
||||||
"winapi-build",
|
|
||||||
]
|
|
||||||
@ -6,12 +6,11 @@
|
|||||||
// check clippy's suggestions from the output to solve the exercise.
|
// check clippy's suggestions from the output to solve the exercise.
|
||||||
// Execute `rustlings hint clippy1` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint clippy1` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::f32;
|
use std::f32;
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
let pi = 3.14f32;
|
let pi = std::f32::consts::PI;
|
||||||
let radius = 5.00f32;
|
let radius = 5.00f32;
|
||||||
|
|
||||||
let area = pi * f32::powi(radius, 2);
|
let area = pi * f32::powi(radius, 2);
|
||||||
|
|||||||
@ -1,12 +1,11 @@
|
|||||||
// clippy2.rs
|
// clippy2.rs
|
||||||
// Execute `rustlings hint clippy2` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint clippy2` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
let mut res = 42;
|
let mut res = 42;
|
||||||
let option = Some(12);
|
let option = Some(12);
|
||||||
for x in option {
|
if let Some(x) = option {
|
||||||
res += x;
|
res += x;
|
||||||
}
|
}
|
||||||
println!("{}", res);
|
println!("{}", res);
|
||||||
|
|||||||
@ -1,28 +1,29 @@
|
|||||||
// clippy3.rs
|
// clippy3.rs
|
||||||
// Here's a couple more easy Clippy fixes, so you can see its utility.
|
// Here's a couple more easy Clippy fixes, so you can see its utility.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
#[allow(unused_variables, unused_assignments)]
|
#[allow(unused_variables, unused_assignments)]
|
||||||
fn main() {
|
fn main() {
|
||||||
let my_option: Option<()> = None;
|
let my_option: Option<()> = None;
|
||||||
if my_option.is_none() {
|
if my_option.is_none() {
|
||||||
my_option.unwrap();
|
println!("My_option contains: {:#?}", my_option);
|
||||||
}
|
}
|
||||||
|
|
||||||
let my_arr = &[
|
let my_arr = &[
|
||||||
-1, -2, -3
|
-1, -2, -3,
|
||||||
-4, -5, -6
|
-4, -5, -6
|
||||||
];
|
];
|
||||||
println!("My array! Here it is: {:?}", my_arr);
|
println!("My array! Here it is: {:?}", my_arr);
|
||||||
|
|
||||||
let my_empty_vec = vec![1, 2, 3, 4, 5].resize(0, 5);
|
let mut my_empty_vec = vec![1, 2, 3, 4, 5];
|
||||||
|
my_empty_vec.clear();
|
||||||
println!("This Vec is empty, see? {:?}", my_empty_vec);
|
println!("This Vec is empty, see? {:?}", my_empty_vec);
|
||||||
|
|
||||||
let mut value_a = 45;
|
let mut value_a = 45;
|
||||||
let mut value_b = 66;
|
let mut value_b = 66;
|
||||||
// Let's swap these two!
|
// Let's swap these two!
|
||||||
value_a = value_b;
|
std::mem::swap(&mut value_a, &mut value_b);
|
||||||
value_b = value_a;
|
// value_a = value_b;
|
||||||
|
// value_b = value_a;
|
||||||
println!("value a: {}; value b: {}", value_a, value_b);
|
println!("value a: {}; value b: {}", value_a, value_b);
|
||||||
}
|
}
|
||||||
|
|||||||
@ -35,10 +35,18 @@ impl Default for Person {
|
|||||||
// If while parsing the age, something goes wrong, then return the default of Person
|
// If while parsing the age, something goes wrong, then return the default of Person
|
||||||
// Otherwise, then return an instantiated Person object with the results
|
// Otherwise, then return an instantiated Person object with the results
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
impl From<&str> for Person {
|
impl From<&str> for Person {
|
||||||
fn from(s: &str) -> Person {
|
fn from(s: &str) -> Person {
|
||||||
|
if s.len() == 0 { return Person::default(); }
|
||||||
|
let v = s.split(",").collect::<Vec<&str>>();
|
||||||
|
if v.len() != 2 { return Person::default(); }
|
||||||
|
if v[0].is_empty() { return Person::default(); }
|
||||||
|
if v[1].parse::<usize>().is_err() { return Person::default(); }
|
||||||
|
Person{
|
||||||
|
name: v[0].to_string(),
|
||||||
|
age: v[1].parse::<usize>().unwrap(),
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -28,7 +28,6 @@ enum ParsePersonError {
|
|||||||
ParseInt(ParseIntError),
|
ParseInt(ParseIntError),
|
||||||
}
|
}
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
// Steps:
|
// Steps:
|
||||||
// 1. If the length of the provided string is 0, an error should be returned
|
// 1. If the length of the provided string is 0, an error should be returned
|
||||||
@ -46,6 +45,15 @@ enum ParsePersonError {
|
|||||||
impl FromStr for Person {
|
impl FromStr for Person {
|
||||||
type Err = ParsePersonError;
|
type Err = ParsePersonError;
|
||||||
fn from_str(s: &str) -> Result<Person, Self::Err> {
|
fn from_str(s: &str) -> Result<Person, Self::Err> {
|
||||||
|
if s.len() == 0 { return Err(ParsePersonError::Empty); }
|
||||||
|
let v = s.split(",").collect::<Vec<&str>>();
|
||||||
|
if v.len() != 2 { return Err(ParsePersonError::BadLen); }
|
||||||
|
if v[0].is_empty() { return Err(ParsePersonError::NoName); }
|
||||||
|
if let Err(e) = v[1].parse::<usize>() { return Err(ParsePersonError::ParseInt(e)); }
|
||||||
|
Ok(Person{
|
||||||
|
name: v[0].to_string(),
|
||||||
|
age: v[1].parse::<usize>().unwrap(),
|
||||||
|
})
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -38,6 +38,11 @@ enum IntoColorError {
|
|||||||
impl TryFrom<(i16, i16, i16)> for Color {
|
impl TryFrom<(i16, i16, i16)> for Color {
|
||||||
type Error = IntoColorError;
|
type Error = IntoColorError;
|
||||||
fn try_from(tuple: (i16, i16, i16)) -> Result<Self, Self::Error> {
|
fn try_from(tuple: (i16, i16, i16)) -> Result<Self, Self::Error> {
|
||||||
|
Ok(Color {
|
||||||
|
red: tuple.0 as u8,
|
||||||
|
green: tuple.1 as u8,
|
||||||
|
blue: tuple.2 as u8,
|
||||||
|
})
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -45,6 +50,11 @@ impl TryFrom<(i16, i16, i16)> for Color {
|
|||||||
impl TryFrom<[i16; 3]> for Color {
|
impl TryFrom<[i16; 3]> for Color {
|
||||||
type Error = IntoColorError;
|
type Error = IntoColorError;
|
||||||
fn try_from(arr: [i16; 3]) -> Result<Self, Self::Error> {
|
fn try_from(arr: [i16; 3]) -> Result<Self, Self::Error> {
|
||||||
|
Ok(Color {
|
||||||
|
red: arr[0] as u8,
|
||||||
|
green: arr[1] as u8,
|
||||||
|
blue: arr[2] as u8,
|
||||||
|
})
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -52,6 +62,7 @@ impl TryFrom<[i16; 3]> for Color {
|
|||||||
impl TryFrom<&[i16]> for Color {
|
impl TryFrom<&[i16]> for Color {
|
||||||
type Error = IntoColorError;
|
type Error = IntoColorError;
|
||||||
fn try_from(slice: &[i16]) -> Result<Self, Self::Error> {
|
fn try_from(slice: &[i16]) -> Result<Self, Self::Error> {
|
||||||
|
todo!();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -6,11 +6,10 @@
|
|||||||
// and returns the proper type.
|
// and returns the proper type.
|
||||||
// Execute `rustlings hint using_as` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint using_as` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
fn average(values: &[f64]) -> f64 {
|
fn average(values: &[f64]) -> f64 {
|
||||||
let total = values.iter().sum::<f64>();
|
let total = values.iter().sum::<f64>();
|
||||||
total / values.len()
|
total / values.len() as f64
|
||||||
}
|
}
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
|
|||||||
@ -1,7 +1,6 @@
|
|||||||
// iterators4.rs
|
// iterators4.rs
|
||||||
// Execute `rustlings hint iterators4` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint iterators4` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
pub fn factorial(num: u64) -> u64 {
|
pub fn factorial(num: u64) -> u64 {
|
||||||
// Complete this function to return the factorial of num
|
// Complete this function to return the factorial of num
|
||||||
@ -13,7 +12,7 @@ pub fn factorial(num: u64) -> u64 {
|
|||||||
// For an extra challenge, don't use:
|
// For an extra challenge, don't use:
|
||||||
// - recursion
|
// - recursion
|
||||||
// Execute `rustlings hint iterators4` for hints.
|
// Execute `rustlings hint iterators4` for hints.
|
||||||
vec![1..num].iter().rfold(1, |acc, x| acc + x)
|
(1..=num).rfold(1, |acc, x| acc * x)
|
||||||
}
|
}
|
||||||
|
|
||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
|
|||||||
@ -10,7 +10,6 @@
|
|||||||
//
|
//
|
||||||
// Make the code compile and the tests pass.
|
// Make the code compile and the tests pass.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::collections::HashMap;
|
use std::collections::HashMap;
|
||||||
|
|
||||||
@ -34,7 +33,10 @@ fn count_for(map: &HashMap<String, Progress>, value: Progress) -> usize {
|
|||||||
fn count_iterator(map: &HashMap<String, Progress>, value: Progress) -> usize {
|
fn count_iterator(map: &HashMap<String, Progress>, value: Progress) -> usize {
|
||||||
// map is a hashmap with String keys and Progress values.
|
// map is a hashmap with String keys and Progress values.
|
||||||
// map = { "variables1": Complete, "from_str": None, ... }
|
// map = { "variables1": Complete, "from_str": None, ... }
|
||||||
todo!();
|
map
|
||||||
|
.iter()
|
||||||
|
.filter(|x| *x.1 == value)
|
||||||
|
.count()
|
||||||
}
|
}
|
||||||
|
|
||||||
fn count_collection_for(collection: &[HashMap<String, Progress>], value: Progress) -> usize {
|
fn count_collection_for(collection: &[HashMap<String, Progress>], value: Progress) -> usize {
|
||||||
@ -53,7 +55,10 @@ fn count_collection_iterator(collection: &[HashMap<String, Progress>], value: Pr
|
|||||||
// collection is a slice of hashmaps.
|
// collection is a slice of hashmaps.
|
||||||
// collection = [{ "variables1": Complete, "from_str": None, ... },
|
// collection = [{ "variables1": Complete, "from_str": None, ... },
|
||||||
// { "variables2": Complete, ... }, ... ]
|
// { "variables2": Complete, ... }, ... ]
|
||||||
todo!();
|
collection
|
||||||
|
.iter()
|
||||||
|
.map(|map| count_iterator(map, value))
|
||||||
|
.sum()
|
||||||
}
|
}
|
||||||
|
|
||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
|
|||||||
@ -1,7 +1,6 @@
|
|||||||
// macros1.rs
|
// macros1.rs
|
||||||
// Execute `rustlings hint macros1` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint macros1` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
macro_rules! my_macro {
|
macro_rules! my_macro {
|
||||||
() => {
|
() => {
|
||||||
@ -10,5 +9,5 @@ macro_rules! my_macro {
|
|||||||
}
|
}
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
my_macro();
|
my_macro!();
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,14 +1,13 @@
|
|||||||
// macros2.rs
|
// macros2.rs
|
||||||
// Execute `rustlings hint macros2` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint macros2` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
fn main() {
|
|
||||||
my_macro!();
|
|
||||||
}
|
|
||||||
|
|
||||||
macro_rules! my_macro {
|
macro_rules! my_macro {
|
||||||
() => {
|
() => {
|
||||||
println!("Check out my macro!");
|
println!("Check out my macro!");
|
||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
my_macro!();
|
||||||
|
}
|
||||||
|
|
||||||
|
|||||||
@ -2,8 +2,8 @@
|
|||||||
// Make me compile, without taking the macro out of the module!
|
// Make me compile, without taking the macro out of the module!
|
||||||
// Execute `rustlings hint macros3` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint macros3` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
|
#[macro_use]
|
||||||
mod macros {
|
mod macros {
|
||||||
macro_rules! my_macro {
|
macro_rules! my_macro {
|
||||||
() => {
|
() => {
|
||||||
|
|||||||
@ -1,13 +1,12 @@
|
|||||||
// macros4.rs
|
// macros4.rs
|
||||||
// Execute `rustlings hint macros4` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint macros4` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
#[rustfmt::skip]
|
#[rustfmt::skip]
|
||||||
macro_rules! my_macro {
|
macro_rules! my_macro {
|
||||||
() => {
|
() => {
|
||||||
println!("Check out my macro!");
|
println!("Check out my macro!");
|
||||||
}
|
};
|
||||||
($val:expr) => {
|
($val:expr) => {
|
||||||
println!("Look at this other macro: {}", $val);
|
println!("Look at this other macro: {}", $val);
|
||||||
}
|
}
|
||||||
|
|||||||
@ -18,7 +18,6 @@
|
|||||||
// where the second TODO comment is. Try not to create any copies of the `numbers` Vec!
|
// where the second TODO comment is. Try not to create any copies of the `numbers` Vec!
|
||||||
// Execute `rustlings hint arc1` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint arc1` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
#![forbid(unused_imports)] // Do not change this, (or the next) line.
|
#![forbid(unused_imports)] // Do not change this, (or the next) line.
|
||||||
use std::sync::Arc;
|
use std::sync::Arc;
|
||||||
@ -26,11 +25,11 @@ use std::thread;
|
|||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
let numbers: Vec<_> = (0..100u32).collect();
|
let numbers: Vec<_> = (0..100u32).collect();
|
||||||
let shared_numbers = // TODO
|
let shared_numbers = Arc::new(numbers);// TODO
|
||||||
let mut joinhandles = Vec::new();
|
let mut joinhandles = Vec::new();
|
||||||
|
|
||||||
for offset in 0..8 {
|
for offset in 0..8 {
|
||||||
let child_numbers = // TODO
|
let child_numbers = shared_numbers.clone();// TODO
|
||||||
joinhandles.push(thread::spawn(move || {
|
joinhandles.push(thread::spawn(move || {
|
||||||
let sum: u32 = child_numbers.iter().filter(|&&n| n % 8 == offset).sum();
|
let sum: u32 = child_numbers.iter().filter(|&&n| n % 8 == offset).sum();
|
||||||
println!("Sum of offset {} is {}", offset, sum);
|
println!("Sum of offset {} is {}", offset, sum);
|
||||||
|
|||||||
@ -16,11 +16,10 @@
|
|||||||
//
|
//
|
||||||
// Execute `rustlings hint box1` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint box1` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
#[derive(PartialEq, Debug)]
|
#[derive(PartialEq, Debug)]
|
||||||
pub enum List {
|
pub enum List {
|
||||||
Cons(i32, List),
|
Cons(i32, Box<List>),
|
||||||
Nil,
|
Nil,
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -33,11 +32,11 @@ fn main() {
|
|||||||
}
|
}
|
||||||
|
|
||||||
pub fn create_empty_list() -> List {
|
pub fn create_empty_list() -> List {
|
||||||
todo!()
|
List::Nil
|
||||||
}
|
}
|
||||||
|
|
||||||
pub fn create_non_empty_list() -> List {
|
pub fn create_non_empty_list() -> List {
|
||||||
todo!()
|
List::Cons(0, Box::new(List::Nil))
|
||||||
}
|
}
|
||||||
|
|
||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
|
|||||||
@ -8,7 +8,6 @@
|
|||||||
// This exercise is meant to show you what to expect when passing data to Cow.
|
// This exercise is meant to show you what to expect when passing data to Cow.
|
||||||
// Fix the unit tests by checking for Cow::Owned(_) and Cow::Borrowed(_) at the TODO markers.
|
// Fix the unit tests by checking for Cow::Owned(_) and Cow::Borrowed(_) at the TODO markers.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::borrow::Cow;
|
use std::borrow::Cow;
|
||||||
|
|
||||||
@ -44,7 +43,8 @@ mod tests {
|
|||||||
let slice = [0, 1, 2];
|
let slice = [0, 1, 2];
|
||||||
let mut input = Cow::from(&slice[..]);
|
let mut input = Cow::from(&slice[..]);
|
||||||
match abs_all(&mut input) {
|
match abs_all(&mut input) {
|
||||||
// TODO
|
Cow::Borrowed(_) => Ok(()),
|
||||||
|
_ => Err("Expected owned value"),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -56,7 +56,8 @@ mod tests {
|
|||||||
let slice = vec![0, 1, 2];
|
let slice = vec![0, 1, 2];
|
||||||
let mut input = Cow::from(slice);
|
let mut input = Cow::from(slice);
|
||||||
match abs_all(&mut input) {
|
match abs_all(&mut input) {
|
||||||
// TODO
|
Cow::Owned(_) => Ok(()),
|
||||||
|
_ => Err("Expected owned value"),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -68,7 +69,8 @@ mod tests {
|
|||||||
let slice = vec![-1, 0, 1];
|
let slice = vec![-1, 0, 1];
|
||||||
let mut input = Cow::from(slice);
|
let mut input = Cow::from(slice);
|
||||||
match abs_all(&mut input) {
|
match abs_all(&mut input) {
|
||||||
// TODO
|
Cow::Owned(_) => Ok(()),
|
||||||
|
_ => Err("Expected owned value"),
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -5,7 +5,6 @@
|
|||||||
|
|
||||||
// Make this code compile by using the proper Rc primitives to express that the sun has multiple owners.
|
// Make this code compile by using the proper Rc primitives to express that the sun has multiple owners.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::rc::Rc;
|
use std::rc::Rc;
|
||||||
|
|
||||||
@ -55,17 +54,17 @@ fn main() {
|
|||||||
jupiter.details();
|
jupiter.details();
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
let saturn = Planet::Saturn(Rc::new(Sun {}));
|
let saturn = Planet::Saturn(Rc::clone(&sun));
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 7 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 7 references
|
||||||
saturn.details();
|
saturn.details();
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
let uranus = Planet::Uranus(Rc::new(Sun {}));
|
let uranus = Planet::Uranus(Rc::clone(&sun));
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 8 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 8 references
|
||||||
uranus.details();
|
uranus.details();
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
let neptune = Planet::Neptune(Rc::new(Sun {}));
|
let neptune = Planet::Neptune(Rc::clone(&sun));
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 9 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 9 references
|
||||||
neptune.details();
|
neptune.details();
|
||||||
|
|
||||||
@ -87,12 +86,15 @@ fn main() {
|
|||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 4 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 4 references
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
|
drop(earth);
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 3 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 3 references
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
|
drop(venus);
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 2 references
|
println!("reference count = {}", Rc::strong_count(&sun)); // 2 references
|
||||||
|
|
||||||
// TODO
|
// TODO
|
||||||
|
drop(mercury);
|
||||||
println!("reference count = {}", Rc::strong_count(&sun)); // 1 reference
|
println!("reference count = {}", Rc::strong_count(&sun)); // 1 reference
|
||||||
|
|
||||||
assert_eq!(Rc::strong_count(&sun), 1);
|
assert_eq!(Rc::strong_count(&sun), 1);
|
||||||
|
|||||||
@ -6,7 +6,6 @@
|
|||||||
// The program should wait until all the spawned threads have finished and
|
// The program should wait until all the spawned threads have finished and
|
||||||
// should collect their return values into a vector.
|
// should collect their return values into a vector.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::thread;
|
use std::thread;
|
||||||
use std::time::{Duration, Instant};
|
use std::time::{Duration, Instant};
|
||||||
@ -25,6 +24,7 @@ fn main() {
|
|||||||
let mut results: Vec<u128> = vec![];
|
let mut results: Vec<u128> = vec![];
|
||||||
for handle in handles {
|
for handle in handles {
|
||||||
// TODO: a struct is returned from thread::spawn, can you use it?
|
// TODO: a struct is returned from thread::spawn, can you use it?
|
||||||
|
results.push(handle.join().unwrap());
|
||||||
}
|
}
|
||||||
|
|
||||||
if results.len() != 10 {
|
if results.len() != 10 {
|
||||||
|
|||||||
@ -3,9 +3,8 @@
|
|||||||
// Building on the last exercise, we want all of the threads to complete their work but this time
|
// Building on the last exercise, we want all of the threads to complete their work but this time
|
||||||
// the spawned threads need to be in charge of updating a shared value: JobStatus.jobs_completed
|
// the spawned threads need to be in charge of updating a shared value: JobStatus.jobs_completed
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::sync::Arc;
|
use std::sync::{Arc, Mutex};
|
||||||
use std::thread;
|
use std::thread;
|
||||||
use std::time::Duration;
|
use std::time::Duration;
|
||||||
|
|
||||||
@ -14,14 +13,14 @@ struct JobStatus {
|
|||||||
}
|
}
|
||||||
|
|
||||||
fn main() {
|
fn main() {
|
||||||
let status = Arc::new(JobStatus { jobs_completed: 0 });
|
let status = Arc::new(Mutex::new(JobStatus { jobs_completed: 0 }));
|
||||||
let mut handles = vec![];
|
let mut handles = vec![];
|
||||||
for _ in 0..10 {
|
for _ in 0..10 {
|
||||||
let status_shared = Arc::clone(&status);
|
let status_shared = Arc::clone(&status);
|
||||||
let handle = thread::spawn(move || {
|
let handle = thread::spawn(move || {
|
||||||
thread::sleep(Duration::from_millis(250));
|
thread::sleep(Duration::from_millis(250));
|
||||||
// TODO: You must take an action before you update a shared value
|
// TODO: You must take an action before you update a shared value
|
||||||
status_shared.jobs_completed += 1;
|
status_shared.lock().unwrap().jobs_completed += 1;
|
||||||
});
|
});
|
||||||
handles.push(handle);
|
handles.push(handle);
|
||||||
}
|
}
|
||||||
@ -29,6 +28,6 @@ fn main() {
|
|||||||
handle.join().unwrap();
|
handle.join().unwrap();
|
||||||
// TODO: Print the value of the JobStatus.jobs_completed. Did you notice anything
|
// TODO: Print the value of the JobStatus.jobs_completed. Did you notice anything
|
||||||
// interesting in the output? Do you have to 'join' on all the handles?
|
// interesting in the output? Do you have to 'join' on all the handles?
|
||||||
println!("jobs completed {}", ???);
|
println!("jobs completed {}", status.lock().unwrap().jobs_completed);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,7 +1,6 @@
|
|||||||
// threads3.rs
|
// threads3.rs
|
||||||
// Execute `rustlings hint threads3` or use the `hint` watch subcommand for a hint.
|
// Execute `rustlings hint threads3` or use the `hint` watch subcommand for a hint.
|
||||||
|
|
||||||
// I AM NOT DONE
|
|
||||||
|
|
||||||
use std::sync::mpsc;
|
use std::sync::mpsc;
|
||||||
use std::sync::Arc;
|
use std::sync::Arc;
|
||||||
@ -28,6 +27,7 @@ fn send_tx(q: Queue, tx: mpsc::Sender<u32>) -> () {
|
|||||||
let qc = Arc::new(q);
|
let qc = Arc::new(q);
|
||||||
let qc1 = Arc::clone(&qc);
|
let qc1 = Arc::clone(&qc);
|
||||||
let qc2 = Arc::clone(&qc);
|
let qc2 = Arc::clone(&qc);
|
||||||
|
let tx2 = tx.clone();
|
||||||
|
|
||||||
thread::spawn(move || {
|
thread::spawn(move || {
|
||||||
for val in &qc1.first_half {
|
for val in &qc1.first_half {
|
||||||
@ -40,7 +40,7 @@ fn send_tx(q: Queue, tx: mpsc::Sender<u32>) -> () {
|
|||||||
thread::spawn(move || {
|
thread::spawn(move || {
|
||||||
for val in &qc2.second_half {
|
for val in &qc2.second_half {
|
||||||
println!("sending {:?}", val);
|
println!("sending {:?}", val);
|
||||||
tx.send(*val).unwrap();
|
tx2.send(*val).unwrap();
|
||||||
thread::sleep(Duration::from_secs(1));
|
thread::sleep(Duration::from_secs(1));
|
||||||
}
|
}
|
||||||
});
|
});
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user