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feat: 🎸 added solutions for exercises upto #49

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This commit is contained in:
Karan Kadam 2022-12-23 13:07:42 +10:30
parent 5940f53c19
commit c9b03ee8f3
2 changed files with 9 additions and 9 deletions
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10
exercises/options/options1.rs
View File

@ -1,8 +1,6 @@
// options1.rs
// Execute `rustlings hint options1` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
// This function returns how much icecream there is left in the fridge.
// If it's before 10PM, there's 5 pieces left. At 10PM, someone eats them
// all, so there'll be no more left :(
@ -10,7 +8,11 @@
fn maybe_icecream(time_of_day: u16) -> Option<u16> {
// We use the 24-hour system here, so 10PM is a value of 22
// The Option output should gracefully handle cases where time_of_day > 24.
???
match time_of_day {
0..=21 => return Some(5),
22..=23 => return Some(0),
_ => return None,
}
}
#[cfg(test)]
@ -29,7 +31,7 @@ mod tests {
#[test]
fn raw_value() {
// TODO: Fix this test. How do you get at the value contained in the Option?
let icecreams = maybe_icecream(12);
let icecreams = maybe_icecream(12).unwrap_or(0);
assert_eq!(icecreams, 5);
}
}

8
exercises/options/options2.rs
View File

@ -1,8 +1,6 @@
// options2.rs
// Execute `rustlings hint options2` or use the `hint` watch subcommand for a hint.
// I AM NOT DONE
#[cfg(test)]
mod tests {
use super::*;
@ -13,7 +11,7 @@ mod tests {
let optional_target = Some(target);
// TODO: Make this an if let statement whose value is "Some" type
word = optional_target {
if let Some(word) = optional_target {
assert_eq!(word, target);
}
}
@ -28,8 +26,8 @@ mod tests {
// TODO: make this a while let statement - remember that vector.pop also adds another layer of Option<T>
// You can stack `Option<T>`'s into while let and if let
integer = optional_integers.pop() {
assert_eq!(integer, range);
while let Some(integer) = optional_integers.pop() {
assert_eq!(integer.unwrap(), range);
range -= 1;
}
}