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use std::env;
use std::fs::File;
use std::io::{BufRead, BufReader};
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() != 2 {
eprintln!("Usage: {} filename", args[0]);
std::process::exit(1);
}
let filename = &args[1];
let file = File::open(filename).unwrap_or_else(|_| panic!("No such file: {}", filename));
let reader = BufReader::new(file);
let mut fd = reader.lines();
let mut called_numbers: Vec<i32> = Vec::new();
if let Ok(called_nums) = fd.next().unwrap() {
called_numbers = called_nums.split(",").map(|x| x.parse().unwrap()).collect();
}
fd.next(); /* Skip the empty line */
let mut boards: Vec<(Vec<(i32, bool)>, bool)> = Vec::new();
'outer: loop {
let mut miniboard: Vec<(i32, bool)> = Vec::new();
for _ in 0..5 {
/* New Board */
if let Some(maybe_line) = fd.next() {
if let Ok(line) = maybe_line {
for (a, b) in line
.split_whitespace()
.map(|x| x.parse().unwrap())
.zip([false].iter().cycle())
{
miniboard.push((a, *b));
}
}
} else {
break 'outer;
}
}
boards.push((miniboard.clone(), false));
fd.next(); /* Skip the empty line */
}
for bingo in called_numbers {
for (board, _) in boards.iter_mut() {
for (num, mark) in board.iter_mut() {
if *num == bingo {
*mark = true;
}
}
}
let mut count;
for (board, won) in boards.iter_mut() {
for row in 0..5 {
count = 0;
for i in row * 5..(row * 5) + 5 {
if board[i].1 {
count += 1;
}
}
if count == 5 {
*won = true;
}
}
for column in 0..5 {
count = 0;
for i in (0..5).map(|x| 5 * x + column) {
if board[i].1 {
count += 1;
}
}
if count == 5 {
*won = true;
}
}
}
if boards.len() == 1 {
let mut score: i32 = 0;
if let Some(board) = boards.get(0) {
for (winnynum, marked) in board.0.iter() {
if !marked {
score += winnynum;
}
}
println!("score: {}", score * bingo);
}
}
boards.retain(|x| !x.1);
}
}
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