|
|
@ -3,16 +3,17 @@ use std::io;
|
|
|
|
use day::Day;
|
|
|
|
use day::Day;
|
|
|
|
|
|
|
|
|
|
|
|
pub struct Day02 {
|
|
|
|
pub struct Day02 {
|
|
|
|
input: String,
|
|
|
|
presents: Vec<Present>,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
impl Day for Day02 {
|
|
|
|
impl Day for Day02 {
|
|
|
|
fn new(input: String) -> Day02 {
|
|
|
|
fn new(input: String) -> Day02 {
|
|
|
|
Day02 { input: input }
|
|
|
|
let presents = input.split("\n").map(|line| Present::new(line));
|
|
|
|
|
|
|
|
Day02 { presents: presents.collect::<Vec<Present>>() }
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
fn solve(self) -> io::Result<i32> {
|
|
|
|
fn solve(self) -> io::Result<i32> {
|
|
|
|
Ok(1)
|
|
|
|
Ok(self.presents.iter().fold(0u32, |acc, present| acc + present.wrapping_paper()) as i32)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
@ -23,7 +24,7 @@ struct Present {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
impl Present {
|
|
|
|
impl Present {
|
|
|
|
fn new(input: String) -> Self {
|
|
|
|
fn new(input: &str) -> Self {
|
|
|
|
let dimensions = input.split("x")
|
|
|
|
let dimensions = input.split("x")
|
|
|
|
.map(|d| d.parse::<u32>().unwrap())
|
|
|
|
.map(|d| d.parse::<u32>().unwrap())
|
|
|
|
.collect::<Vec<u32>>();
|
|
|
|
.collect::<Vec<u32>>();
|
|
|
@ -49,12 +50,12 @@ impl Present {
|
|
|
|
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
#[test]
|
|
|
|
fn test_day02() {
|
|
|
|
fn test_day02() {
|
|
|
|
let mut present = Present::new("2x3x4".to_string());
|
|
|
|
let mut present = Present::new("2x3x4");
|
|
|
|
assert_eq!(52, present.surface_area());
|
|
|
|
assert_eq!(52, present.surface_area());
|
|
|
|
assert_eq!(6, present.slack());
|
|
|
|
assert_eq!(6, present.slack());
|
|
|
|
assert_eq!(58, present.wrapping_paper());
|
|
|
|
assert_eq!(58, present.wrapping_paper());
|
|
|
|
|
|
|
|
|
|
|
|
present = Present::new("1x1x10".to_string());
|
|
|
|
present = Present::new("1x1x10");
|
|
|
|
assert_eq!(42, present.surface_area());
|
|
|
|
assert_eq!(42, present.surface_area());
|
|
|
|
assert_eq!(1, present.slack());
|
|
|
|
assert_eq!(1, present.slack());
|
|
|
|
assert_eq!(43, present.wrapping_paper());
|
|
|
|
assert_eq!(43, present.wrapping_paper());
|
|
|
|