day6_part2.jakt

/// Expect:
/// - output: "46563\n"

import reader
import utility

function distance_to_coordinates(coordinates: [(u32, u32, usize)], x: u32, y: u32) -> i64 {
    mut total_distance = 0
    for coordinate in coordinates.iterator() {
        total_distance += utility::abs(coordinate.0 as! i64 - x as !i64)
        total_distance += utility::abs(coordinate.1 as! i64 - y as !i64)
    }

    return total_distance
}

function main() {
    mut coordinates: [(u32, u32, usize)] = []

    mut x_bound = 0u32
    mut y_bound = 0u32
    for (id, coord_str) in utility::enumerate(reader::lines_string(day: 6).iterator()) {
        let coord_parts = coord_str.split(',')
        let x = coord_parts[0].to_uint()!
        let y = coord_parts[1].substring(start: 1, length: coord_parts[1].length() - 1).to_uint()!

        coordinates.push((x, y, id))

        if x > x_bound {
            x_bound = x
        }

        if y > y_bound {
            y_bound = y
        }
    }

    mut points = 0
    for y in 0..y_bound {
        for x in 0..x_bound {
            let distance = distance_to_coordinates(coordinates, x, y)
            if distance < 10000 {
                points++
            }
        }
    }

    println("{}", points)
}