Print all days
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3027ffbdd7
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c2e2d2930a
3 changed files with 100 additions and 34 deletions
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@ -19,7 +19,6 @@ pub fn solve() {
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let result: usize = patterns
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.iter()
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.map(|block| {
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// check columns
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let mut ks: Vec<usize> = vec![];
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for k in 1..block[0].len() {
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@ -1,4 +1,4 @@
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use std::{fs, collections::HashMap};
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use std::{collections::HashMap, fs};
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pub fn solve() {
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let path = "res/14/input";
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@ -6,7 +6,8 @@ pub fn solve() {
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let contents = fs::read_to_string(path).expect("I/O error, wrong path?");
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//let contents = BufReader::new(fs::File::open(path).expect("I/O error, wrong path?"));
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let rocks_init: Vec<Vec<char>> = contents.lines()
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let rocks_init: Vec<Vec<char>> = contents
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.lines()
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.map(|line| line.chars().collect::<Vec<_>>())
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.collect();
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@ -32,7 +33,6 @@ pub fn solve() {
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println!("Result 1: {result}");
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let mut counter = 1;
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let mut cache: HashMap<Vec<Vec<char>>, usize> = HashMap::new();
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let mut cache_used = false;
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@ -42,7 +42,8 @@ pub fn solve() {
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for y in 0..rocks[0].len() {
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if rocks[x][y] == 'O' {
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match counter % 4 {
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0 => { // north
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0 => {
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// north
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let mut new_x = x;
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while new_x > 0 {
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new_x -= 1;
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@ -53,8 +54,9 @@ pub fn solve() {
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}
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rocks[x][y] = '.';
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rocks[new_x][y] = 'O';
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},
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_ => { // west
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}
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_ => {
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// west
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let mut new_y = y;
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while new_y > 0 {
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new_y -= 1;
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@ -67,7 +69,6 @@ pub fn solve() {
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rocks[x][new_y] = 'O';
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}
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}
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}
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}
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}
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@ -76,9 +77,10 @@ pub fn solve() {
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for y in (0..rocks[0].len()).rev() {
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if rocks[x][y] == 'O' {
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match counter % 4 {
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3 => { // east
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3 => {
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// east
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let mut new_y = y;
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while new_y < rocks[0].len()-1 {
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while new_y < rocks[0].len() - 1 {
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new_y += 1;
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if rocks[x][new_y] == '#' || rocks[x][new_y] == 'O' {
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new_y -= 1;
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@ -87,10 +89,11 @@ pub fn solve() {
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}
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rocks[x][y] = '.';
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rocks[x][new_y] = 'O';
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},
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_ => { // south
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}
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_ => {
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// south
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let mut new_x = x;
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while new_x < rocks.len()-1 {
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while new_x < rocks.len() - 1 {
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new_x += 1;
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if rocks[new_x][y] == '#' || rocks[new_x][y] == 'O' {
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new_x -= 1;
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@ -101,33 +104,32 @@ pub fn solve() {
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rocks[new_x][y] = 'O';
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}
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}
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}
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}
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}
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}
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counter += 1;
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if counter % 4 == 0 && !cache_used{
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if counter % 4 == 0 && !cache_used {
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let cycle_start = cache.get(&rocks);
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match cycle_start {
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None => { cache.insert(rocks.clone(), counter); },
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None => {
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cache.insert(rocks.clone(), counter);
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}
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Some(x) => {
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let cycle = counter - x;
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counter += (((4000000000-counter)/cycle) as usize) * cycle;
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counter += (((4000000000 - counter) / cycle) as usize) * cycle;
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cache_used = true;
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}
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}
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}
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}
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result = rocks.iter().enumerate()
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.map(|(i_row, row)| {
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row.iter().filter(|c| **c == 'O').count() * (rocks.len() - i_row)
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})
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result = rocks
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.iter()
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.enumerate()
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.map(|(i_row, row)| row.iter().filter(|c| **c == 'O').count() * (rocks.len() - i_row))
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.sum();
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println!("Result 2: {result}");
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73
src/main.rs
73
src/main.rs
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@ -1,12 +1,77 @@
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pub mod days;
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#[macro_use] extern crate scan_fmt;
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#[macro_use]
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extern crate scan_fmt;
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use std::time::Instant;
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fn main() {
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days::d14::solve()
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//_all_days()
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//days::d14::solve()
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_all_days()
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}
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fn _all_days() {
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println!("Day 1");
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let start = Instant::now();
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println!("\nDay 1");
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days::d01::solve();
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print_elapsed(&start);
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println!("\nDay 2");
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days::d02::solve();
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print_elapsed(&start);
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println!("\nDay 3");
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days::d03::solve();
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print_elapsed(&start);
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println!("\nDay 4");
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days::d04::solve();
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print_elapsed(&start);
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println!("\nDay 5");
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days::d05::solve();
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print_elapsed(&start);
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println!("\nDay 6");
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days::d06::solve();
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print_elapsed(&start);
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println!("\nDay 7");
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days::d07::solve();
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print_elapsed(&start);
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println!("\nDay 8");
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days::d08::solve();
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print_elapsed(&start);
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println!("\nDay 9");
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days::d09::solve();
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print_elapsed(&start);
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println!("\nDay 10");
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days::d10::solve();
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print_elapsed(&start);
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println!("\nDay 11");
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days::d11::solve();
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print_elapsed(&start);
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println!("\nDay 12");
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days::d12::solve();
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print_elapsed(&start);
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println!("\nDay 13");
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days::d13::solve();
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print_elapsed(&start);
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println!("\nDay 14");
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days::d14::solve();
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print_elapsed(&start);
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}
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fn print_elapsed(start: &Instant) {
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println!(
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" Elapsed: {}.{}ms",
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start.elapsed().as_millis(),
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start.elapsed().as_micros() % 1000
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)
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}
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