Review and add improvements

section_1/1.5/hello-rust/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_1/1.5/hello-rust/src/main.rs

@@ -1,4 +1,4 @@
 fn main() {
-	let text = "Hello, Rust!";
+    let text = "Hello, Rust!";
     println!("{}", text);
 }

section_2/2.1/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_2/2.1/src/main.rs

@@ -1,5 +1,5 @@
 fn main() {
-	let mut x = 5;
+    let mut x = 5;
 
-	x = 4;
+    x = 4;
 }

section_2/2.2/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_2/2.2/src/main.rs

@@ -1,3 +1,6 @@
+mod operators;
+
 fn main() {
 	let tup: (u8, i8, f32) = (1, -1, 3.5);
+	println!("{tup:?}");
 }

section_2/2.2/src/operators.rs

@@ -1,7 +1,8 @@
-
-
-let addition = 2 + 2;
-let subtraction = 4 - 3;
-let multiplication = 2 * 2;
-let division = 4 / 2;
-let remainder = 4 % 2;
+#[test]
+fn test() {
+    let _addition = 2 + 2;
+    let _subtraction = 4 - 3;
+    let _multiplication = 2 * 2;
+    let _division = 4 / 2;
+    let _remainder = 4 % 2;
+}

section_2/2.3/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_2/2.3/src/main.rs

@@ -1,26 +1,24 @@
 fn main() {
-
-	let name = "Alex";
+    let name = "Alex";
 
-	match name {
-		"Dave" => println!("Oh hiya Dave!"),
-		"Sally" => println!("Hi Sally!"),
-		_ => println!("Wait, I don't know you!")
-	}
+    match name {
+        "Dave" => println!("Oh hiya Dave!"),
+        "Sally" => println!("Hi Sally!"),
+        _ => println!("Wait, I don't know you!"),
+    }
 
+    //loop {
+    //	println!("Rust\n");
+    //}
 
-	//loop {
-	//	println!("Rust\n");
-	//}
+    //for x in 0..10{
+    //	println!("{}", x);
+    //}
 
-	//for x in 0..10{
-	//	println!("{}", x);
-	//}
+    //let mut counter = 1;
+    //while counter != 10 {
+    //	println!("Counter: {}", counter);
 
-	//let mut counter = 1;
-	//while counter != 10 {
-	//	println!("Counter: {}", counter);
-
-	//	counter = counter + 1;
-	//}
+    //	counter = counter + 1;
+    //}
 }

section_2/2.4/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_2/2.4/src/main.rs

@@ -3,4 +3,7 @@ fn main() {
    let array = ["This", "is", "an", "array"];
 
    let array_slice = &array[1..4];
+
+   println!("{array:?}");
+   println!("{array_slice:?}");
 }

section_2/2.5/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_2/2.5/Cargo.toml

@@ -4,3 +4,13 @@ version = "0.1.0"
 authors = ["TheAdnan <adnankicin92@gmail.com>"]
 
 [dependencies]
+
+# cargo run --bin main
+[[bin]]
+name="main"
+path="src/main.rs"
+
+# cargo run --bin ownership
+[[bin]]
+name="ownership"
+path="src/ownership.rs"

section_2/2.5/src/ownership.rs

@@ -1,12 +1,12 @@
 fn main() {
-
+	#[allow(unused_assignments)]
 	let mut string1: String = String::new();
 
 	string1 = "String".to_string();
 
-	let string2 = &string;
+	let string2 = &string1;
 
-	println!("{:?}", string);
+	println!("{:?}", string1);
 
 	println!("{:?}", string2);
 

section_3/3.1/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_3/3.1/src/main.rs

@@ -1,13 +1,14 @@
-fn multiplication(a: i32, b: i32) -> i32 {
+pub fn multiplication(a: i32, b: i32) -> i32 {
 	a * b
 }
 
-fn multiplication_print_result(a: i32, b: i32){
+pub fn multiplication_print_result(a: i32, b: i32){
 	println!("{}", multiplication(a, b));
 }
 
 mod some_module;
 
+#[allow(unused_variables)]
 fn main() {
     let x = 2;
 

section_3/3.1/src/some_module.rs

@@ -1,3 +1,3 @@
-pub fn say_hello(){
-		println!("hello!");
-	}
+pub fn say_hello() {
+    println!("hello!");
+}

section_3/3.2/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_3/3.2/Cargo.toml

@@ -7,4 +7,4 @@ authors = ["TheAdnan <adnankicin92@gmail.com>"]
 path= "src/some_crate"
 
 [dependencies]
-regex = "0.2.9"
+

section_3/3.3/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_3/3.3/Cargo.toml

@@ -7,4 +7,4 @@ authors = ["TheAdnan <adnankicin92@gmail.com>"]
 path= "src/some_crate"
 
 [dependencies]
-regex = "0.2.9"
+

section_3/3.3/src/main.rs

@@ -1,24 +1,23 @@
 extern crate some_crate;
 
 #[test]
-fn test_user_structure(){
-	let new_user = some_crate::User{
-    	name: "Dave".to_string(),
-    	email: "dave@mail.com".to_string(),
-    	age: 32,
-    	user_type: some_crate::UserType::Guest
+fn test_user_structure() {
+    let new_user = some_crate::User {
+        name: "Dave".to_string(),
+        email: "dave@mail.com".to_string(),
+        age: 32,
+        user_type: some_crate::UserType::Guest,
     };
 
     assert_eq!("Dave".to_string(), new_user.name);
 }
 
 fn main() {
-
-    let new_user = some_crate::User{
-    	name: "Dave".to_string(),
-    	email: "dave@mail.com".to_string(),
-    	age: 32,
-    	user_type: some_crate::UserType::Guest
+    let new_user = some_crate::User {
+        name: "Dave".to_string(),
+        email: "dave@mail.com".to_string(),
+        age: 32,
+        user_type: some_crate::UserType::Guest,
     };
 
     new_user.print_user();

section_3/3.3/src/some_crate/src/lib.rs

@@ -1,21 +1,23 @@
 #[derive(Debug)]
-pub struct User{
-	pub name: String,
-	pub email: String,
-	pub age: u16,
-	pub user_type: UserType
+pub struct User {
+    pub name: String,
+    pub email: String,
+    pub age: u16,
+    pub user_type: UserType,
 }
 
-impl User{
-	pub fn print_user(self){
-		println!("The name of the user is {}.\nHis email is: {}.\nHe is {} old.\nType of user: {:?}", self.name, self.email, self.age, self.user_type);
-	}
+impl User {
+    pub fn print_user(self) {
+        println!(
+            "The name of the user is {}.\nHis email is: {}.\nHe is {} old.\nType of user: {:?}",
+            self.name, self.email, self.age, self.user_type
+        );
+    }
 }
 
 #[derive(Debug)]
-pub enum UserType{
-	Guest,
-	Regular,
-	Admin
+pub enum UserType {
+    Guest,
+    Regular,
+    Admin,
 }
-

section_3/3.4/.gitignore

@@ -1,3 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
 
-/target/
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
 **/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb

section_3/3.4/Cargo.toml

@@ -7,4 +7,4 @@ authors = ["TheAdnan <adnankicin92@gmail.com>"]
 path= "src/some_crate"
 
 [dependencies]
-regex = "0.2.9"
+