alarsyo/advent-of-code
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

2021: day04: remove useless Grid field

Browse source
This commit is contained in:
Antoine Martin 2021-12-04 15:22:35 +01:00
parent 6dccc14046
commit 9209659a5a
1 changed files with 0 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
aoc2021/src/day04.rs
View file

@ -99,7 +99,6 @@ fn part2(input: &str) -> Result<u64> {
#[derive(Debug, Clone)] #[derive(Debug, Clone)]
struct Grid { struct Grid {
number_to_pos: HashMap<u8, (usize, usize)>, number_to_pos: HashMap<u8, (usize, usize)>,
pos_to_number: HashMap<(usize, usize), u8>,
grid: [bool; GRID_SIZE], grid: [bool; GRID_SIZE],
rows: [u8; GRID_HEIGHT], rows: [u8; GRID_HEIGHT],
cols: [u8; GRID_WIDTH], cols: [u8; GRID_WIDTH],
@ -141,7 +140,6 @@ impl std::str::FromStr for Grid {
fn from_str(s: &str) -> Result<Self> { fn from_str(s: &str) -> Result<Self> {
let mut numbers = s.split_whitespace().map(str::parse); let mut numbers = s.split_whitespace().map(str::parse);
let mut number_to_pos = HashMap::new(); let mut number_to_pos = HashMap::new();
let mut pos_to_number = HashMap::new();
for y in 0..GRID_HEIGHT { for y in 0..GRID_HEIGHT {
for x in 0..GRID_WIDTH { for x in 0..GRID_WIDTH {
@ -151,13 +149,11 @@ impl std::str::FromStr for Grid {
.context("not enough numbers for grid")? .context("not enough numbers for grid")?
.context("couldn't parse number:")?; .context("couldn't parse number:")?;
number_to_pos.insert(number, pos); number_to_pos.insert(number, pos);
pos_to_number.insert(pos, number);
} }
} }
Ok(Grid { Ok(Grid {
number_to_pos, number_to_pos,
pos_to_number,
grid: [false; GRID_SIZE], grid: [false; GRID_SIZE],
rows: [0; GRID_HEIGHT], rows: [0; GRID_HEIGHT],
cols: [0; GRID_WIDTH], cols: [0; GRID_WIDTH],