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day11 part2

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Andrew Glaze 2023-12-13 16:01:37 -05:00
parent 8a40f62cf6
commit 78aab8ab5e
2 changed files with 228 additions and 32 deletions
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150
day11/input.txt
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@ -1,10 +1,140 @@
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110
day11/src/main.rs
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@ -6,38 +6,48 @@ fn main() {
.map(|x| x.chars().collect::<Vec<char>>())
.collect();
let mut rotate: Vec<Vec<char>> = vec![];
let mut y_expand: Vec<i32> = vec![];
for line in &input {
if line.iter().all(|char| char == &'.') {
y_expand.push(1);
} else {
y_expand.push(0);
}
}
let mut x_expand: Vec<i32> = vec![];
for j in 0..input[0].len() {
let mut tmp: Vec<char> = vec![];
let mut is_empty = true;
for i in 0..input.len() {
tmp.push(input[i][j]);
if input[i][j] != '.' {
is_empty = false;
}
}
if is_empty {
x_expand.push(1);
} else {
x_expand.push(0);
}
}
if tmp.iter().all(|x| x == &'.') {
rotate.push(tmp.clone());
}
rotate.push(tmp);
}
// println!("{:?}", x_expand);
let mut galaxies: Vec<(i64, i64)> = vec![];
let mut expanded: Vec<Vec<char>> = vec![];
for j in 0..rotate[0].len() {
let mut tmp: Vec<char> = vec![];
for i in 0..rotate.len() {
tmp.push(rotate[i][j]);
}
if tmp.iter().all(|x| x == &'.') {
expanded.push(tmp.clone());
}
expanded.push(tmp);
}
let mut y_offset: i64 = 0;
let mut galaxies: Vec<(i32, i32)> = vec![];
for (i, line) in input.iter().enumerate() {
if y_expand[i] == 1 {
y_offset += 1000000 - 1;
}
let mut x_offset: i64 = 0;
for (i, line) in expanded.iter().enumerate() {
for (j, char) in line.iter().enumerate() {
if x_expand[j] == 1 {
x_offset += 1000000 - 1;
}
if char == &'#' {
galaxies.push((i as i32,j as i32));
galaxies.push((i as i64 + y_offset, j as i64 + x_offset));
}
}
}
@ -53,3 +63,59 @@ fn main() {
println!("{:?}", dist_total);
}
// use std::fs;
// fn main() {
// let input = fs::read_to_string("input.txt").unwrap();
// let input: Vec<_> = input.split('\n')
// .map(|x| x.chars().collect::<Vec<char>>())
// .collect();
// let mut rotate: Vec<Vec<char>> = vec![];
// for j in 0..input[0].len() {
// let mut tmp: Vec<char> = vec![];
// for i in 0..input.len() {
// tmp.push(input[i][j]);
// }
// if tmp.iter().all(|x| x == &'.') {
// rotate.push(tmp.clone());
// }
// rotate.push(tmp);
// }
// let mut expanded: Vec<Vec<char>> = vec![];
// for j in 0..rotate[0].len() {
// let mut tmp: Vec<char> = vec![];
// for i in 0..rotate.len() {
// tmp.push(rotate[i][j]);
// }
// if tmp.iter().all(|x| x == &'.') {
// expanded.push(tmp.clone());
// }
// expanded.push(tmp);
// }
// let mut galaxies: Vec<(i32, i32)> = vec![];
// for (i, line) in expanded.iter().enumerate() {
// for (j, char) in line.iter().enumerate() {
// if char == &'#' {
// galaxies.push((i as i32,j as i32));
// }
// }
// }
// let dist_total = galaxies.clone().into_iter().enumerate()
// .fold(0, |mut acc, (i, gal)| {
// for next in &galaxies[i + 1..] {
// acc += gal.0.abs_diff(next.0) + gal.1.abs_diff(next.1);
// }
// acc
// });
// println!("{:?}", dist_total);
// }