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Day 21 and 22 work
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Russell Champoux committed
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commit
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6 files changed
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Generated
+98
@@ -0,0 +1,98 @@
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[root]
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name = "day21"
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"memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "libc"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "memchr"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
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[[package]]
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name = "regex"
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"memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "regex-syntax"
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[[package]]
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dependencies = [
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"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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||||
[[package]]
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name = "thread_local"
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version = "0.2.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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||||
"thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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name = "utf8-ranges"
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[[package]]
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name = "winapi-build"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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"checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
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"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
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"checksum libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "a51822fc847e7a8101514d1d44e354ba2ffa7d4c194dcab48870740e327cac70"
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"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
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"checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
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"checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
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"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
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"checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
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"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
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"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
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"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
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@@ -0,0 +1,7 @@
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||||
[package]
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||||
name = "day21"
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||||
version = "0.1.0"
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||||
authors = ["~krowbar"]
|
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|
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[dependencies]
|
||||
regex = "0.1"
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@@ -0,0 +1,245 @@
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extern crate regex;
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use std::io::Read;
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use std::fs::File;
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use regex::Regex;
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use std::cmp;
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#[derive(Debug, Clone, Copy)]
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enum Direction {
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Right,
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Left
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||||
}
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#[derive(Debug)]
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||||
enum Step {
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SwapPos { from: usize, to: usize },
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SwapLet { from: char, to: char },
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RotatePos { dir: Direction, value: usize },
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||||
RotateLet { from: char },
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Reverse { from: usize, to: usize },
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MovePos { from: usize, to: usize },
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}
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||||
fn swap_position(passcode: String, from: usize, to: usize) -> String {
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let (low, high) = (cmp::min(from, to), cmp::max(from, to));
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let mut new_passcode = passcode[0..low].to_string();
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let low_char = passcode.chars().clone().nth(low).unwrap();
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let high_char = passcode.chars().clone().nth(high).unwrap();
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new_passcode.push(high_char);
|
||||
if low + 1 < high {
|
||||
new_passcode.push_str(&passcode[low+1..high]);
|
||||
}
|
||||
new_passcode.push(low_char);
|
||||
if high < passcode.len() {
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||||
new_passcode.push_str(&passcode[high+1..]);
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||||
}
|
||||
//println!("{} -> {}", passcode, new_passcode);
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new_passcode
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||||
}
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||||
|
||||
fn swap_letter(passcode: String, from: char, to: char) -> String {
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||||
let pos_from = passcode.chars().position(|c| c == from).unwrap();
|
||||
let pos_to = passcode.chars().position(|c| c == to).unwrap();
|
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swap_position(passcode, pos_from, pos_to)
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||||
}
|
||||
|
||||
fn rotate_position(passcode: String, dir: Direction, value: usize) -> String {
|
||||
let mut new_passcode = String::new();
|
||||
let shift = value % passcode.len(); //unless we shift by too much
|
||||
match dir {
|
||||
Direction::Right => {
|
||||
//the last 'value' characters and then the rest
|
||||
let split_idx = passcode.len()-shift;
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||||
new_passcode.push_str(&passcode[split_idx..]);
|
||||
new_passcode.push_str(&passcode[..split_idx]);
|
||||
},
|
||||
Direction::Left => {
|
||||
new_passcode.push_str(&passcode[shift..]);
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||||
new_passcode.push_str(&passcode[..shift]);
|
||||
},
|
||||
}
|
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//println!("{} -({} {:?})-> {}", passcode, value, dir, new_passcode);
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new_passcode
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||||
}
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||||
fn rotate_letter(passcode: String, from: char) -> String {
|
||||
//rotate to the right based on 1 + idx of letter + 1 if idx > 3
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||||
let pos = passcode.chars().position(|c| c == from).unwrap();
|
||||
if pos > 3 {
|
||||
return rotate_position(passcode, Direction::Right, 2 + pos);
|
||||
} else {
|
||||
return rotate_position(passcode, Direction::Right, 1 + pos);
|
||||
}
|
||||
}
|
||||
|
||||
fn un_rotate_letter(passcode: String, from: char) -> String {
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||||
//find the letter
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passcode
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||||
}
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||||
|
||||
fn reverse(passcode: String, from: usize, to: usize) -> String {
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||||
let mut new_passcode = String::from(&passcode[..from]);
|
||||
for c in passcode[from..to+1].chars().rev() {
|
||||
new_passcode.push(c);
|
||||
}
|
||||
new_passcode.push_str(&passcode[to+1..]);
|
||||
//println!("{} -> {}", passcode, new_passcode);
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new_passcode
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||||
}
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||||
|
||||
fn move_position(passcode: String, from: usize, to: usize) -> String {
|
||||
let mut new_passcode = String::new();
|
||||
if from < to {
|
||||
// [..from][from+1..to+1][from][to.1..]
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||||
new_passcode.push_str(&passcode[..from]);
|
||||
new_passcode.push_str(&passcode[from+1..to+1]);
|
||||
new_passcode.push_str(&passcode[from..from+1]);
|
||||
new_passcode.push_str(&passcode[to+1..]);
|
||||
} else {
|
||||
// [..to][from][to..from][from+1..]
|
||||
new_passcode.push_str(&passcode[..to]);
|
||||
new_passcode.push_str(&passcode[from..from+1]);
|
||||
new_passcode.push_str(&passcode[to..from]);
|
||||
new_passcode.push_str(&passcode[from+1..]);
|
||||
}
|
||||
//println!("{} -> {}", passcode, new_passcode);
|
||||
new_passcode
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let re_swap_pos = Regex::new(r"swap position (\d+) with position (\d+)").unwrap();
|
||||
let re_swap_let = Regex::new(r"swap letter ([:alpha:]) with letter ([:alpha:])").unwrap();
|
||||
let re_rotate_pos = Regex::new(r"rotate (left|right) (\d+) step[s]{0,1}").unwrap();
|
||||
let re_rotate_let = Regex::new(r"rotate based on position of letter ([:alpha:])").unwrap();
|
||||
let re_reverse = Regex::new(r"reverse positions (\d+) through (\d+)").unwrap();
|
||||
let re_move_pos = Regex::new(r"move position (\d+) to position (\d)").unwrap();
|
||||
|
||||
let mut file = File::open("./data").expect("could not open file");
|
||||
let mut input = String::new();
|
||||
file.read_to_string(&mut input).expect("could not read file");
|
||||
|
||||
let mut steps: Vec<Step> = Vec::new(); //translate all the instructions
|
||||
|
||||
for line in input.lines() {
|
||||
if re_swap_pos.is_match(line) {
|
||||
let cap = re_swap_pos.captures(line).unwrap();
|
||||
steps.push(Step::SwapPos { from: cap.at(1).unwrap().parse().unwrap(), to: cap.at(2).unwrap().parse().unwrap() });
|
||||
}
|
||||
else if re_swap_let.is_match(line) {
|
||||
let cap = re_swap_let.captures(line).unwrap();
|
||||
steps.push(Step::SwapLet { from: cap.at(1).unwrap().chars().next().unwrap(), to: cap.at(2).unwrap().chars().next().unwrap() });
|
||||
}
|
||||
else if re_rotate_pos.is_match(line) {
|
||||
let cap = re_rotate_pos.captures(line).unwrap();
|
||||
let direction = match cap.at(1).unwrap() {
|
||||
"left" => Direction::Left,
|
||||
_ => Direction::Right,
|
||||
};
|
||||
let value = cap.at(2).unwrap().parse().unwrap();
|
||||
|
||||
steps.push(Step::RotatePos { dir: direction, value: value });
|
||||
}
|
||||
else if re_rotate_let.is_match(line) {
|
||||
let cap = re_rotate_let.captures(line).unwrap();
|
||||
steps.push(Step::RotateLet { from: cap.at(1).unwrap().chars().next().unwrap() });
|
||||
}
|
||||
else if re_reverse.is_match(line) {
|
||||
let cap = re_reverse.captures(line).unwrap();
|
||||
steps.push(Step::Reverse { from: cap.at(1).unwrap().parse().unwrap(), to: cap.at(2).unwrap().parse().unwrap() });
|
||||
}
|
||||
else if re_move_pos.is_match(line) {
|
||||
let cap = re_move_pos.captures(line).unwrap();
|
||||
steps.push(Step::MovePos { from: cap.at(1).unwrap().parse().unwrap(), to: cap.at(2).unwrap().parse().unwrap() });
|
||||
}
|
||||
else {
|
||||
panic!("Unknown pattern! {}", line);
|
||||
}
|
||||
}
|
||||
|
||||
// let mut passcode = String::from("abcdefgh");
|
||||
|
||||
// println!("All Steps: ");
|
||||
// for step in steps {
|
||||
// passcode = match step {
|
||||
// Step::SwapPos { from, to } => { swap_position(passcode, from, to) },
|
||||
// Step::SwapLet { from, to } => { swap_letter(passcode, from, to) },
|
||||
// Step::RotatePos { dir, value } => { rotate_position(passcode, dir, value) },
|
||||
// Step::RotateLet { from } => { rotate_letter(passcode, from) },
|
||||
// Step::Reverse { from, to } => { reverse(passcode, from, to) },
|
||||
// Step::MovePos { from, to } => { move_position(passcode, from, to) },
|
||||
// };
|
||||
// //println!("{} -> ", passcode);
|
||||
// //println!("{:?}", step);
|
||||
// }
|
||||
// println!("Part 1: Passcode is {}", passcode);
|
||||
|
||||
let mut existing = String::from("fbgdceah");
|
||||
for step in steps.iter().rev() {
|
||||
existing = match *step {
|
||||
Step::SwapPos { from, to } => { swap_position(existing, from, to) }, //unaffected
|
||||
Step::SwapLet { from, to } => { swap_letter(existing, from, to) }, //unaffected
|
||||
Step::RotatePos { dir, value } => {
|
||||
let undir = match dir {
|
||||
Direction::Right => Direction::Left,
|
||||
Direction::Left => Direction::Right
|
||||
};
|
||||
rotate_position(existing, undir, value)
|
||||
}, //mostly unaffected
|
||||
Step::RotateLet { from } => { un_rotate_letter(existing, from) },
|
||||
Step::Reverse { from, to } => { reverse(existing, from, to) }, //unaffected
|
||||
Step::MovePos { from, to } => { move_position(existing, to, from) }, //mostly unaffected
|
||||
}
|
||||
}
|
||||
println!("Part 2: Decyphered passcode is {}", existing);
|
||||
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_swap_position() {
|
||||
assert_eq!(swap_position("abcd".to_string(), 0, 2), "cbad");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_swap_letter() {
|
||||
assert_eq!(swap_letter("abcd".to_string(), 'b', 'd'), "adcb");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_rotate_position() {
|
||||
assert_eq!(rotate_position("abcd".to_string(), Direction::Right, 2), "cdab");
|
||||
assert_eq!(rotate_position("abcd".to_string(), Direction::Left, 1), "bcda");
|
||||
assert_eq!(rotate_position("abcd".to_string(), Direction::Right, 8), "abcd");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_rotate_letter() {
|
||||
assert_eq!(rotate_letter("abcd".to_string(), 'b'), "cdab");
|
||||
assert_eq!(rotate_letter("abcd".to_string(), 'b'), rotate_position("abcd".to_string(), Direction::Right, 2));
|
||||
assert_eq!(rotate_letter("abcdefgh".to_string(), 'f'), "bcdefgha");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_reverse() {
|
||||
assert_eq!(reverse("abcd".to_string(), 1, 2), "acbd");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_move_position() {
|
||||
assert_eq!(move_position("abcdefg".to_string(), 1, 4), "acdebfg");
|
||||
assert_eq!(move_position("abcdefg".to_string(), 4, 1), "aebcdfg");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_undo_move_position() {
|
||||
assert_eq!(move_position(move_position("abcdefg".to_string(), 1, 4), 4, 1), "abcdefg");
|
||||
assert_eq!(move_position(move_position("abcdefg".to_string(), 4, 1), 1, 4), "abcdefg");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_un_rotate_letter() {
|
||||
assert_eq!(un_rotate_letter("abcdefg".to_string(), 'c'), "abcdefg");
|
||||
assert_eq!(un_rotate_letter(rotate_letter("abcdefg".to_string(), 'c'), 'c'), "abcdefg");
|
||||
}
|
||||
Generated
+98
@@ -0,0 +1,98 @@
|
||||
[root]
|
||||
name = "day22"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "aho-corasick"
|
||||
version = "0.5.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "kernel32-sys"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.18"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "memchr"
|
||||
version = "0.1.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex"
|
||||
version = "0.1.80"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-syntax"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "thread-id"
|
||||
version = "2.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thread_local"
|
||||
version = "0.2.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "utf8-ranges"
|
||||
version = "0.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-build"
|
||||
version = "0.1.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[metadata]
|
||||
"checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
|
||||
"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
|
||||
"checksum libc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "a51822fc847e7a8101514d1d44e354ba2ffa7d4c194dcab48870740e327cac70"
|
||||
"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
|
||||
"checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
|
||||
"checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
|
||||
"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
|
||||
"checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
|
||||
"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
|
||||
"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
|
||||
"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
|
||||
@@ -0,0 +1,7 @@
|
||||
[package]
|
||||
name = "day22"
|
||||
version = "0.1.0"
|
||||
authors = ["~krowbar"]
|
||||
|
||||
[dependencies]
|
||||
regex = "0.1"
|
||||
@@ -0,0 +1,55 @@
|
||||
extern crate regex;
|
||||
|
||||
use std::io::Read;
|
||||
use std::fs::File;
|
||||
use regex::Regex;
|
||||
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
struct FileSys {
|
||||
x: i32,
|
||||
y: i32,
|
||||
size: i32,
|
||||
used: i32,
|
||||
avail: i32
|
||||
}
|
||||
|
||||
fn main() {
|
||||
//Filesystem Size Used Avail Use%
|
||||
let re_filesys = Regex::new(r"/dev/grid/node-x(\d+)-y(\d+)\s+(\d+)T\s+(\d+)T\s+(\d+)T\s+(\d+)%").unwrap();
|
||||
|
||||
let mut file = File::open("./data").expect("could not open file");
|
||||
let mut input = String::new();
|
||||
file.read_to_string(&mut input).expect("could not read file");
|
||||
|
||||
let mut file_systems: Vec<FileSys> = Vec::new();
|
||||
|
||||
for line in input.lines() {
|
||||
match re_filesys.captures(line) {
|
||||
Some(cap) => file_systems.push(FileSys {
|
||||
x: cap.at(1).unwrap().parse().unwrap(),
|
||||
y: cap.at(2).unwrap().parse().unwrap(),
|
||||
size: cap.at(3).unwrap().parse().unwrap(),
|
||||
used: cap.at(4).unwrap().parse().unwrap(),
|
||||
avail: cap.at(5).unwrap().parse().unwrap()
|
||||
}),
|
||||
None => panic!("Unknown data in input"),
|
||||
};
|
||||
}
|
||||
|
||||
let mut count = 0;
|
||||
'source_loop: for source in file_systems.clone() {
|
||||
|
||||
if source.used == 0 {
|
||||
continue 'source_loop;
|
||||
}
|
||||
'dest_loop: for dest in file_systems.clone() {
|
||||
if source.x == dest.x && source.y == dest.y {
|
||||
continue 'dest_loop;
|
||||
}
|
||||
if source.used <= dest.avail {
|
||||
count = count + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
println!("Count is {}", count);
|
||||
}
|
||||
Reference in new issue
Block a user