use std/prelude;

fn main() {
    $println("Hello world!");
}

use std/prelude;

fn solve(string[] blocks) {
    sizes := blocks.slice(0, 6).iter().map(fn: it.iter().map(fn: it == '#').sum()).collect();
    total := 0;

    for part in blocks[6].nums<i32>().iter().chunks(8).map(fn: it.iter()) {
        area := part.take(2).product();
        total += area > sizes.iter().zip(part).map(fn: it.x * it.y).sum();
    }

    return total;
}

fn main(string[] args) {
    blocks := io::read_to_string(args[1]).split("\n\n");
    $dbg(solve(blocks));
}

use std/prelude;
use std/net/tcp;

let BUF_SIZE = 1024;

fn main() {
    server := TcpServer::bind(port := 8080);

    while server.is_err_and(fn: it == Errno::EADDRINUSE) {
        server = TcpServer::bind(port += 1);
    }

    server := server.unwrap();
    defer server.close().unwrap();
    $printf("Server is listening on port {}", port);

    connection := server.accept().unwrap();
    defer connection.close().unwrap();
    buf := Array::bytes(BUF_SIZE);

    while (_, received := connection.read(buf)) && received != 0 {
        $printf("Received {} bytes: {}", received, buf.join("").replace("\n", ""));
        connection.write(buf).expect("Failed to send response");
    }
}