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-rw-r--r--rustlings/solutions/quizzes/quiz1.rs30
-rw-r--r--rustlings/solutions/quizzes/quiz2.rs90
-rw-r--r--rustlings/solutions/quizzes/quiz3.rs65
3 files changed, 0 insertions, 185 deletions
diff --git a/rustlings/solutions/quizzes/quiz1.rs b/rustlings/solutions/quizzes/quiz1.rs
deleted file mode 100644
index 5503c8c..0000000
--- a/rustlings/solutions/quizzes/quiz1.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-// Mary is buying apples. The price of an apple is calculated as follows:
-// - An apple costs 2 rustbucks.
-// - However, if Mary buys more than 40 apples, the price of each apple in the
-// entire order is reduced to only 1 rustbuck!
-
-fn calculate_price_of_apples(n_apples: u64) -> u64 {
- if n_apples > 40 {
- n_apples
- } else {
- 2 * n_apples
- }
-}
-
-fn main() {
- // You can optionally experiment here.
-}
-
-// Don't change the tests!
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn verify_test() {
- assert_eq!(calculate_price_of_apples(35), 70);
- assert_eq!(calculate_price_of_apples(40), 80);
- assert_eq!(calculate_price_of_apples(41), 41);
- assert_eq!(calculate_price_of_apples(65), 65);
- }
-}
diff --git a/rustlings/solutions/quizzes/quiz2.rs b/rustlings/solutions/quizzes/quiz2.rs
deleted file mode 100644
index 8b073b1..0000000
--- a/rustlings/solutions/quizzes/quiz2.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-// Let's build a little machine in the form of a function. As input, we're going
-// to give a list of strings and commands. These commands determine what action
-// is going to be applied to the string. It can either be:
-// - Uppercase the string
-// - Trim the string
-// - Append "bar" to the string a specified amount of times
-//
-// The exact form of this will be:
-// - The input is going to be a vector of 2-length tuples,
-// the first element is the string, the second one is the command.
-// - The output element is going to be a vector of strings.
-
-enum Command {
- Uppercase,
- Trim,
- Append(usize),
-}
-
-mod my_module {
- use super::Command;
-
- // The solution with a loop. Check out `transformer_iter` for a version
- // with iterators.
- pub fn transformer(input: Vec<(String, Command)>) -> Vec<String> {
- let mut output = Vec::new();
-
- for (string, command) in input {
- // Create the new string.
- let new_string = match command {
- Command::Uppercase => string.to_uppercase(),
- Command::Trim => string.trim().to_string(),
- Command::Append(n) => string + &"bar".repeat(n),
- };
-
- // Push the new string to the output vector.
- output.push(new_string);
- }
-
- output
- }
-
- // Equivalent to `transform` but uses an iterator instead of a loop for
- // comparison. Don't worry, we will practice iterators later ;)
- pub fn transformer_iter(input: Vec<(String, Command)>) -> Vec<String> {
- input
- .into_iter()
- .map(|(string, command)| match command {
- Command::Uppercase => string.to_uppercase(),
- Command::Trim => string.trim().to_string(),
- Command::Append(n) => string + &"bar".repeat(n),
- })
- .collect()
- }
-}
-
-fn main() {
- // You can optionally experiment here.
-}
-
-#[cfg(test)]
-mod tests {
- // Import `transformer`.
- use super::my_module::transformer;
-
- use super::Command;
- use super::my_module::transformer_iter;
-
- #[test]
- fn it_works() {
- for transformer in [transformer, transformer_iter] {
- let input = vec![
- ("hello".to_string(), Command::Uppercase),
- (" all roads lead to rome! ".to_string(), Command::Trim),
- ("foo".to_string(), Command::Append(1)),
- ("bar".to_string(), Command::Append(5)),
- ];
- let output = transformer(input);
-
- assert_eq!(
- output,
- [
- "HELLO",
- "all roads lead to rome!",
- "foobar",
- "barbarbarbarbarbar",
- ]
- );
- }
- }
-}
diff --git a/rustlings/solutions/quizzes/quiz3.rs b/rustlings/solutions/quizzes/quiz3.rs
deleted file mode 100644
index 7b91278..0000000
--- a/rustlings/solutions/quizzes/quiz3.rs
+++ /dev/null
@@ -1,65 +0,0 @@
-// An imaginary magical school has a new report card generation system written
-// in Rust! Currently, the system only supports creating report cards where the
-// student's grade is represented numerically (e.g. 1.0 -> 5.5). However, the
-// school also issues alphabetical grades (A+ -> F-) and needs to be able to
-// print both types of report card!
-//
-// Make the necessary code changes in the struct `ReportCard` and the impl
-// block to support alphabetical report cards in addition to numerical ones.
-
-use std::fmt::Display;
-
-// Make the struct generic over `T`.
-struct ReportCard<T> {
- // ^^^
- grade: T,
- // ^
- student_name: String,
- student_age: u8,
-}
-
-// To be able to print the grade, it has to implement the `Display` trait.
-impl<T: Display> ReportCard<T> {
- // ^^^^^^^ require that `T` implements `Display`.
- fn print(&self) -> String {
- format!(
- "{} ({}) - achieved a grade of {}",
- &self.student_name, &self.student_age, &self.grade,
- )
- }
-}
-
-fn main() {
- // You can optionally experiment here.
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn generate_numeric_report_card() {
- let report_card = ReportCard {
- grade: 2.1,
- student_name: "Tom Wriggle".to_string(),
- student_age: 12,
- };
- assert_eq!(
- report_card.print(),
- "Tom Wriggle (12) - achieved a grade of 2.1",
- );
- }
-
- #[test]
- fn generate_alphabetic_report_card() {
- let report_card = ReportCard {
- grade: "A+",
- student_name: "Gary Plotter".to_string(),
- student_age: 11,
- };
- assert_eq!(
- report_card.print(),
- "Gary Plotter (11) - achieved a grade of A+",
- );
- }
-}