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solution for day 2 part 2

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Isaac Kleiner, M.D 2024-03-29 17:13:26 -04:00
parent 9bc58421c7
commit 257a9bdb91
1 changed files with 28 additions and 20 deletions
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48
src/day2/mod.rs
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@ -4,38 +4,34 @@ const RED_MAX: u32 = 12;
const GREEN_MAX: u32 = 13; const GREEN_MAX: u32 = 13;
const BLUE_MAX: u32 = 14; const BLUE_MAX: u32 = 14;
static mut RED_MIN: u32 = 0;
static mut GREEN_MIN: u32 = 0;
static mut BLUE_MIN: u32 = 0;
pub fn process() -> u32 { pub fn process() -> u32 {
let file_path = "./input_sources/day2short.txt"; let file_path = "./input_sources/day2.txt";
let mut total: u32 = 0; let mut total: u32 = 0;
if let Ok(lines) = read_lines(file_path) { if let Ok(lines) = read_lines(file_path) {
for game in lines.flatten() { for game in lines.flatten() {
check_if_game_is_valid(game.clone()); total = total + get_color_minimums(game.clone());
// println!("{:?}", is_game_valid); //println!("{:?}", total);
if is_game_valid {
let game_id: u32 = get_game_id(game.clone());
total = total + game_id;
}
} }
} }
total total
} }
fn get_game_id(input_line: String) -> u32 { fn get_game_id(input_line: String) -> u32 {
let game_section: Vec<&str> = input_line.split(":").collect(); let game_section: Vec<&str> = input_line.split(":").collect();
let game_section_split: Vec<&str> = game_section[0].split(" ").collect(); let game_section_split: Vec<&str> = game_section[0].split(" ").collect();
game_section_split[1].trim().parse().unwrap() game_section_split[1].trim().parse().unwrap()
} }
fn check_if_game_is_valid(game: String) -> bool { fn get_color_minimums(game: String) -> u32 {
let split_on_colon: Vec<&str> = game.split(":").collect(); let split_on_colon: Vec<&str> = game.split(":").collect();
let game_results: Vec<&str> = split_on_colon[1].split(";").collect(); let game_results: Vec<&str> = split_on_colon[1].split(";").collect();
let mut valid_game: bool = true; let mut valid_game: bool = true;
let mut total: u32 = 1;
let mut green_min: u32 = 0;
let mut red_min: u32 = 0;
let mut blue_min: u32 = 0;
for game_result in game_results { for game_result in game_results {
let selections: Vec<&str> = game_result.split(",").collect(); let selections: Vec<&str> = game_result.split(",").collect();
for selection in selections { for selection in selections {
@ -45,24 +41,36 @@ fn check_if_game_is_valid(game: String) -> bool {
match color_selected { match color_selected {
"green" => { "green" => {
if num_selected > GREEN_MIN { if num_selected > green_min {
GREEN_MIN = num_selected; green_min = num_selected;
} }
}, },
"blue" => { "blue" => {
if num_selected > BLUE_MIN { if num_selected > blue_min {
BLUE_MIN = num_selected; blue_min = num_selected;
} }
}, },
"red" => { "red" => {
if num_selected > RED_MIN { if num_selected > red_min {
RED_MIN = num_selected; red_min = num_selected;
} }
}, },
&_ => todo!() &_ => todo!()
} }
} }
} }
valid_game if green_min > 0 {
total = green_min * total;
}
if red_min > 0 {
total = red_min * total;
}
if blue_min > 0 {
total = blue_min * total;
}
total
} }