From 174772b5b8d9f5bf5e3c8e8152adfd89f0e83f6b Mon Sep 17 00:00:00 2001
From: Justin Wernick <justin@worthe-it.co.za>
Date: Tue, 19 Apr 2022 20:22:56 +0200
Subject: Refile for merging repos

---
 aoc14/Cargo.lock  | 14 ----------
 aoc14/Cargo.toml  |  7 -----
 aoc14/src/main.rs | 84 -------------------------------------------------------
 3 files changed, 105 deletions(-)
 delete mode 100644 aoc14/Cargo.lock
 delete mode 100644 aoc14/Cargo.toml
 delete mode 100644 aoc14/src/main.rs

(limited to 'aoc14')

diff --git a/aoc14/Cargo.lock b/aoc14/Cargo.lock
deleted file mode 100644
index a889c91..0000000
--- a/aoc14/Cargo.lock
+++ /dev/null
@@ -1,14 +0,0 @@
-[root]
-name = "aoc14"
-version = "0.1.0"
-dependencies = [
- "md5 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "md5"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[metadata]
-"checksum md5 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7df230903ccdffd6b3b4ec21624498ea64c912ce50297846907f0b8e1bb249dd"
diff --git a/aoc14/Cargo.toml b/aoc14/Cargo.toml
deleted file mode 100644
index eb3f92d..0000000
--- a/aoc14/Cargo.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-[package]
-name = "aoc14"
-version = "0.1.0"
-authors = ["Justin Worthe <justin.worthe@entelect.co.za>"]
-
-[dependencies]
-md5 = "^0.2"
\ No newline at end of file
diff --git a/aoc14/src/main.rs b/aoc14/src/main.rs
deleted file mode 100644
index d9410ce..0000000
--- a/aoc14/src/main.rs
+++ /dev/null
@@ -1,84 +0,0 @@
-extern crate md5;
-
-use std::collections::HashMap;
-
-fn main() {
-//    let input = "abc";
-    let input = "yjdafjpo";
-    let mut index = 0;
-    let mut results_found = 0;
-
-    let mut hash_memo = HashMap::new();
-    while results_found < 64 {
-        let hash = stretched_hash(format!("{}{}", input, index), &mut hash_memo);
-        
-        let threes = find_concurrent_symbols(&hash, 3, true);
-        if threes.len() > 0 {
-//            println!("Found three at {} -> {}", index, hash);
-            for i in 1..1001 {
-                let hash = stretched_hash(format!("{}{}", input, index+i), &mut hash_memo);
-                let fives = find_concurrent_symbols(&hash, 5, false);
-                if fives.iter().any(|c| threes.contains(c)) {
-                    results_found += 1;
-//                    println!("Five found at {} -> {}", index+i, hash);
-                    println!("Found hash {} at index {}", results_found, index);
-                    break;
-                }
-            }
-        }
-        index += 1;
-    }
-    
-}
-
-fn find_concurrent_symbols(hash: &String, count: u8, exit_early: bool) -> Vec<char> {
-    let mut last_symbol = None;
-    let mut last_symbol_run = 0;
-    let mut matches = Vec::new();
-    for c in hash.chars() {
-        let symbol_matches = match last_symbol {
-            Some(s) => s == c,
-            None => false
-        };
-
-        if symbol_matches {
-            last_symbol_run += 1;
-            if last_symbol_run >= count && !matches.contains(&c) {
-                matches.push(c);
-                if exit_early {
-                    break;
-                }
-            }
-        } else {
-            last_symbol = Some(c);
-            last_symbol_run = 1;
-        }
-    }
-
-    matches
-}
-
-fn hash_to_string(hash: &[u8; 16]) -> String {
-    let mut result = String::with_capacity(32);
-    
-    for &byte in hash.iter() {
-        result.push_str(format!("{:02x}", byte).as_ref());
-    }
-    result
-}
-
-fn stretched_hash(input: String, memo: &mut HashMap<String, String>) -> String {
-    memo.entry(input.clone()).or_insert_with(|| {
-        let mut result = input;
-        for _ in 0..2017 {
-            result = string_hash(result);
-        }
-        result
-    }).clone()
-}
-
-fn string_hash(input: String) -> String {
-    let bytes_to_hash = input.into_bytes();
-    let hash = md5::compute(bytes_to_hash.as_slice());
-    hash_to_string(&hash)
-}
-- 
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