From 120d53c0ff20574866ce10fa0538fb8b0dd2ef82 Mon Sep 17 00:00:00 2001
From: Federico Igne <git@federicoigne.com>
Date: Thu, 23 Jun 2022 19:06:22 +0100
Subject: Reorganize repository structure

---
 day14/src/main.rs | 55 -------------------------------------------------------
 1 file changed, 55 deletions(-)
 delete mode 100644 day14/src/main.rs

(limited to 'day14/src')

diff --git a/day14/src/main.rs b/day14/src/main.rs
deleted file mode 100644
index 6cca304..0000000
--- a/day14/src/main.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-use std::fs;
-use std::path::Path;
-use std::collections::HashMap;
-use std::iter::FromIterator;
-
-type Expand = (char,char);
-type Rules = HashMap<(char,char),char>;
-type Frequency = HashMap<char,u128>;
-type FrequencyMap = HashMap<Expand,Frequency>;
-
-/* AOC21 Day 14: https://adventofcode.com/2021/day/14 */
-fn main() {
-    let input = Path::new("resources").join("input.txt");
-    let content = fs::read_to_string(input).expect("Unable to read input file");
-    let (template,rules) = content.split_once("\n\n").expect("Malformed input");
-    let rules = Rules::from_iter(rules.lines().map(|l| {
-        let (from,to) = l.split_once(" -> ").expect("Malformed input");
-        let chars = from.chars().collect::<Vec<char>>();
-        ((chars[0],chars[1]),to.parse().unwrap())
-    }));
-    let mut frequency = FrequencyMap::new();
-    rules.iter().for_each(|(&(a,b),&c)| {
-        let mut map = HashMap::new(); map.insert(c,1);
-        frequency.insert((a,b),map);
-    });
-    (1..10).for_each(|_| frequency = expand(&frequency, &rules));
-    println!("Ex1: the result is {}", template_frequency(template, &frequency));
-    (0..30).for_each(|_| frequency = expand(&frequency, &rules));
-    println!("Ex2: the result is {}", template_frequency(template, &frequency));
-}
-
-fn expand(frequency: &FrequencyMap, rules: &Rules) -> FrequencyMap {
-    let mut freq2 = FrequencyMap::new();
-    rules.iter().for_each(|(&(a,b),&c)| {
-        let mut map = merge(frequency.get(&(a,c)).unwrap(), frequency.get(&(c,b)).unwrap());
-        *map.entry(c).or_default() += 1;
-        *freq2.entry((a,b)).or_default() = map;
-    });
-    freq2
-}
-
-fn template_frequency(template: &str, frequency: &FrequencyMap) -> u128 {
-    let mut freq = HashMap::new();
-    template.chars().for_each(|c| *freq.entry(c).or_default() += 1);
-    freq = template.chars().collect::<Vec<char>>()
-                   .as_slice().windows(2)
-                   .fold(freq, |acc, w| merge(&acc, frequency.get(&(w[0],w[1])).unwrap()) );
-    freq.values().max().unwrap() - freq.values().min().unwrap()
-}
-
-fn merge(a: &Frequency, b: &Frequency) -> Frequency {
-    let mut map = a.clone();
-    b.iter().for_each(|(&k,&v)| *map.entry(k).or_default() += v);
-    map
-}
-- 
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