Original exercises

This commit is contained in:
Nidhal Messaoudi 2023-02-27 21:33:28 +01:00
parent 1acbbb6d43
commit 278a1f103b
27 changed files with 87 additions and 58 deletions

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@ -1,10 +1,8 @@
// functions1.rs
// Execute `rustlings hint functions1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
call_me();
}
fn call_me() {
println!("I'm Nidhal Messaoudi, a software developer going Rusty!!!");
}

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@ -1,11 +1,13 @@
// functions2.rs
// Execute `rustlings hint functions2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
call_me(3);
}
fn call_me(num: i32) {
fn call_me(num:) {
for i in 0..num {
println!("Ring! Call number {}", i + 1);
}

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@ -1,8 +1,10 @@
// functions3.rs
// Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
call_me(12);
call_me();
}
fn call_me(num: u32) {

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@ -7,12 +7,14 @@
// in the signatures for now. If anything, this is a good way to peek ahead
// to future exercises!)
// I AM NOT DONE
fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
}
fn sale_price(price: i32) -> i32 {
fn sale_price(price: i32) -> {
if is_even(price) {
price - 10
} else {

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@ -1,11 +1,13 @@
// functions5.rs
// Execute `rustlings hint functions5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let answer = square(3);
println!("The square of 3 is {}", answer);
}
fn square(num: i32) -> i32 {
return num * num;
num * num;
}

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@ -1,16 +1,13 @@
// if1.rs
// Execute `rustlings hint if1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
pub fn bigger(a: i32, b: i32) -> i32 {
// Complete this function to return the bigger number!
// Do not use:
// - another function call
// - additional variables
if a > b {
a
} else {
b
}
}
// Don't mind this for now :)

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@ -4,13 +4,13 @@
// Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
// Execute `rustlings hint if2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
pub fn foo_if_fizz(fizzish: &str) -> &str {
if fizzish == "fuzz" {
"bar"
} else if fizzish == "fizz" {
if fizzish == "fizz" {
"foo"
} else {
"baz"
1
}
}

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@ -9,6 +9,8 @@
// when you change one of the lines below! Try adding a `println!` line, or try changing
// what it outputs in your terminal. Try removing a semicolon and see what happens!
// I AM NOT DONE
fn main() {
println!("Hello and");
println!(r#" welcome to... "#);

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@ -2,6 +2,8 @@
// Make the code print a greeting to the world.
// Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
println!("Hello {}!", "World");
println!("Hello {}!");
}

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@ -1,10 +1,12 @@
// move_semantics1.rs
// Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let vec0 = Vec::new();
let mut vec1 = fill_vec(vec0);
let vec1 = fill_vec(vec0);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);

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@ -2,10 +2,12 @@
// Make me compile without changing line 13 or moving line 10!
// Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand for a hint.
fn main() {
let mut vec0 = Vec::new();
// I AM NOT DONE
let mut vec1 = fill_vec(&mut vec0);
fn main() {
let vec0 = Vec::new();
let mut vec1 = fill_vec(vec0);
// Do not change the following line!
println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
@ -15,12 +17,12 @@ fn main() {
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
fn fill_vec(vec: &mut Vec<i32>) -> Vec<i32> {
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
let mut vec = vec;
vec.push(22);
vec.push(44);
vec.push(66);
vec.to_vec()
vec
}

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@ -3,6 +3,8 @@
// (no lines with multiple semicolons necessary!)
// Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let vec0 = Vec::new();
@ -15,7 +17,7 @@ fn main() {
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
vec.push(22);
vec.push(44);
vec.push(66);

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@ -2,6 +2,8 @@
// Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :)
// I AM NOT DONE
fn main() {
// Booleans (`bool`)
@ -10,7 +12,7 @@ fn main() {
println!("Good morning!");
}
let is_evening = false; // Finish the rest of this line like the example! Or make it be false!
let // Finish the rest of this line like the example! Or make it be false!
if is_evening {
println!("Good evening!");
}

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@ -2,12 +2,14 @@
// Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :)
// I AM NOT DONE
fn main() {
// Characters (`char`)
// Note the _single_ quotes, these are different from the double quotes
// you've been seeing around.
let my_first_initial = 'N';
let my_first_initial = 'C';
if my_first_initial.is_alphabetic() {
println!("Alphabetical!");
} else if my_first_initial.is_numeric() {
@ -16,12 +18,12 @@ fn main() {
println!("Neither alphabetic nor numeric!");
}
let my_favorite_character = '🔥'; // Finish this line like the example! What's your favorite character?
let // Finish this line like the example! What's your favorite character?
// Try a letter, try a number, try a special character, try a character
// from a different language than your own, try an emoji!
if my_favorite_character.is_alphabetic() {
if your_character.is_alphabetic() {
println!("Alphabetical!");
} else if my_favorite_character.is_numeric() {
} else if your_character.is_numeric() {
println!("Numerical!");
} else {
println!("Neither alphabetic nor numeric!");

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@ -2,10 +2,10 @@
// Create an array with at least 100 elements in it where the ??? is.
// Execute `rustlings hint primitive_types3` or use the `hint` watch subcommand for a hint.
fn main() {
let a = ["Nidhal Messaoudi, A Rust professional!"; 100];
// I AM NOT DONE
println!("{}", a.len());
fn main() {
let a = ???
if a.len() >= 100 {
println!("Wow, that's a big array!");

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@ -2,11 +2,13 @@
// Get a slice out of Array a where the ??? is so that the test passes.
// Execute `rustlings hint primitive_types4` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
#[test]
fn slice_out_of_array() {
let a = [1, 2, 3, 4, 5];
let nice_slice = &a[1..4];
let nice_slice = ???
assert_eq!([2, 3, 4], nice_slice)
}

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@ -2,9 +2,11 @@
// Destructure the `cat` tuple so that the println will work.
// Execute `rustlings hint primitive_types5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let cat = ("Furry McFurson", 3.5);
let (name, age) = cat;
let /* your pattern here */ = cat;
println!("{} is {} years old.", name, age);
}

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@ -3,11 +3,13 @@
// You can put the expression for the second element where ??? is so that the test passes.
// Execute `rustlings hint primitive_types6` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
#[test]
fn indexing_tuple() {
let numbers = (1, 2, 3);
// Replace below ??? with the tuple indexing syntax.
let second = numbers.1;
let second = ???;
assert_eq!(2, second,
"This is not the 2nd number in the tuple!")

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@ -10,20 +10,10 @@
// Write a function that calculates the price of an order of apples given
// the quantity bought. No hints this time!
// Put your function here!
fn calculate_price_of_apples(quantity: i32) -> i32 {
let mut quantity= quantity;
if quantity <= 40 {
quantity = quantity * 2;
}
return quantity;
// I AM NOT DONE
// if quantity > 40 {
// quantity
// } else {
// quantity * 2
// }
}
// Put your function here!
// fn calculate_price_of_apples {
// Don't modify this function!
#[test]

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@ -2,7 +2,9 @@
// Make me compile!
// Execute `rustlings hint variables1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let x = 5;
x = 5;
println!("x has the value {}", x);
}

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@ -1,8 +1,10 @@
// variables2.rs
// Execute `rustlings hint variables2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let x = 12;
let x;
if x == 10 {
println!("x is ten!");
} else {

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@ -1,7 +1,9 @@
// variables3.rs
// Execute `rustlings hint variables3` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let x: i32 = 12;
let x: i32;
println!("Number {}", x);
}

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@ -1,8 +1,10 @@
// variables4.rs
// Execute `rustlings hint variables4` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let mut x = 3;
let x = 3;
println!("Number {}", x);
x = 5; // don't change this line
println!("Number {}", x);

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@ -1,9 +1,11 @@
// variables5.rs
// Execute `rustlings hint variables5` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn main() {
let number = "T-H-R-E-E"; // don't change this line
println!("Spell a Number : {}", number);
let number = 3; // don't rename this variable
number = 3; // don't rename this variable
println!("Number plus two is : {}", number + 2);
}

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@ -1,7 +1,9 @@
// variables6.rs
// Execute `rustlings hint variables6` or use the `hint` watch subcommand for a hint.
const NUMBER: i32 = 3;
// I AM NOT DONE
const NUMBER = 3;
fn main() {
println!("Number {}", NUMBER);
}

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@ -4,9 +4,11 @@
// Make me compile and pass the test!
// Execute `rustlings hint vecs1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn array_and_vec() -> ([i32; 4], Vec<i32>) {
let a = [10, 20, 30, 40]; // a plain array
let v = vec![10, 20, 30, 40]; // TODO: declare your vector here with the macro for vectors
let v = // TODO: declare your vector here with the macro for vectors
(a, v)
}

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@ -6,11 +6,13 @@
//
// Execute `rustlings hint vecs2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
fn vec_loop(mut v: Vec<i32>) -> Vec<i32> {
for i in v.iter_mut() {
// TODO: Fill this up so that each element in the Vec `v` is
// multiplied by 2.
*i *= 2;
???
}
// At this point, `v` should be equal to [4, 8, 12, 16, 20].
@ -21,7 +23,7 @@ fn vec_map(v: &Vec<i32>) -> Vec<i32> {
v.iter().map(|num| {
// TODO: Do the same thing as above - but instead of mutating the
// Vec, you can just return the new number!
num * 2
???
}).collect()
}