nebkor/aoc2024
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compare: nebkor:53816fed73dcc0e787e93c7292fe1b918110c376
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1 changed files with 6 additions and 7 deletions
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day06/src/main.rs
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@ -6,7 +6,7 @@ use std::{
use winnow::{ use winnow::{
PResult, Parser, PResult, Parser,
ascii::{newline, till_line_ending}, ascii::{newline, till_line_ending},
combinator::{alt, opt, repeat, separated}, combinator::{alt, repeat, separated},
}; };
fn main() { fn main() {
@ -36,9 +36,8 @@ fn pt2(input: &str) -> usize {
} }
} }
let board = Board::new(input);
for loc in trace { for loc in trace {
let mut board = board.clone(); board = Board::new(input);
let mut steps = HashSet::new(); let mut steps = HashSet::new();
board.set(loc, Cell::Obstacle); board.set(loc, Cell::Obstacle);
steps.insert(board.guard); steps.insert(board.guard);
@ -231,10 +230,10 @@ fn parse(input: &str) -> PResult<Board> {
let mut gdir = Dir::N; let mut gdir = Dir::N;
let mut loc = Loc(0, 0); let mut loc = Loc(0, 0);
let (cells, _): (Vec<Vec<Cell>>, _) = let mut input = input;
winnow::combinator::seq!(separated(1.., parse_line, newline), opt(newline)) let cells: Vec<Vec<Cell>> = separated(1.., parse_line, newline)
.parse(input) .parse_next(&mut input)
.unwrap(); .unwrap();
for (row, line) in cells.iter().enumerate() { for (row, line) in cells.iter().enumerate() {
for (col, cell) in line.iter().enumerate() { for (col, cell) in line.iter().enumerate() {