{"header":{"message":"Add solution for day22a","description":null,"timestamp":"2022-02-06T21:29:29.467289859Z","authors":[{}]},"hash":"MSLXV7SXVK7GMHAG3CUY32HPSD7BBIROYYL6JH63OCQDA2UU6NBQC","authors":[{"login":"voroskoi","key":"Guf8VYJNUiWAqxwLxDSKxmvvtY65ht2zK2q4h6VhxrcZ"}],"deps":{"hashes":[["MSLXV7SXVK7GMHAG3CUY32HPSD7BBIROYYL6JH63OCQDA2UU6NBQC","Add solution for day22a"],["AA",null],["ISKIMCRTCM4ZY34QENDO4AN7ZAKRRBPFLA5MYHXH2K6Q2WKJDZNQC","Add build files and solution for day1"]],"deps":["ISKIMCRTCM4ZY34QENDO4AN7ZAKRRBPFLA5MYHXH2K6Q2WKJDZNQC"],"known":[]},"hunks":[{"FileAdd":{"meta":{"basename":"day22a.zig","metadata":0},"context":[{"change":2,"pos":15}],"contents":[{"Add":"const std = @import(\"std\");"},{"Add":""},{"Add":"const path = \"../data/day22/input.txt\";"},{"Add":""},{"Add":"const grid_min = -50;"},{"Add":"const grid_max = 50;"},{"Add":""},{"Add":"const Cuboid = struct {"},{"Add":" state: u1,"},{"Add":" xmin: isize,"},{"Add":" xmax: isize,"},{"Add":" ymin: isize,"},{"Add":" ymax: isize,"},{"Add":" zmin: isize,"},{"Add":" zmax: isize,"},{"Add":"};"},{"Add":""},{"Add":"const Cubes = []Cuboid;"},{"Add":""},{"Add":"pub fn main() !void {"},{"Add":" var timer = try std.time.Timer.start();"},{"Add":" const ret = try first();"},{"Add":" const t = timer.lap() / 1000;"},{"Add":""},{"Add":" try std.testing.expectEqual(@as(usize, 607573), ret);"},{"Add":""},{"Add":" std.debug.print(\"Day 22a result: {d} \\t\\ttime: {d}µs\\n\", .{ ret, t });"},{"Add":"}"},{"Add":""},{"Add":"const Grid = [101][101][101]u1;"},{"Add":""},{"Add":"pub fn first() !usize {"},{"Add":" const allocator = std.testing.allocator;"},{"Add":""},{"Add":" const input = try parseInput(allocator);"},{"Add":" defer allocator.free(input);"},{"Add":""},{"Add":" var grid: Grid = [_][101][101]u1{[_][101]u1{[_]u1{0} ** 101} ** 101} ** 101;"},{"Add":""},{"Add":" for (input) |cube| {"},{"Add":" var x = std.math.max(cube.xmin, grid_min);"},{"Add":" while (x <= std.math.min(cube.xmax, grid_max)) : (x += 1) {"},{"Add":" var y = std.math.max(cube.ymin, grid_min);"},{"Add":" while (y <= std.math.min(cube.ymax, grid_max)) : (y += 1) {"},{"Add":" var z = std.math.max(cube.zmin, grid_min);"},{"Add":" while (z <= std.math.min(cube.zmax, grid_max)) : (z += 1) {"},{"Add":" std.debug.assert(x >= -50);"},{"Add":" std.debug.assert(x <= 50);"},{"Add":" std.debug.assert(y >= -50);"},{"Add":" std.debug.assert(y <= 50);"},{"Add":" std.debug.assert(z >= -50);"},{"Add":" std.debug.assert(z <= 50);"},{"Add":" grid[@intCast(usize, x + 50)][@intCast(usize, y + 50)][@intCast(usize, z + 50)] = cube.state;"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" var sum: usize = 0;"},{"Add":""},{"Add":" var x: usize = 0;"},{"Add":" while (x < 101) : (x += 1) {"},{"Add":" var y: usize = 0;"},{"Add":" while (y < 101) : (y += 1) {"},{"Add":" var z: usize = 0;"},{"Add":" while (z < 101) : (z += 1) {"},{"Add":" sum += grid[x][y][z];"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" return sum;"},{"Add":"}"},{"Add":""},{"Add":"fn parseInput(a: std.mem.Allocator) !Cubes {"},{"Add":" const input = @embedFile(path);"},{"Add":" var lines = std.mem.split(u8, input, \"\\n\");"},{"Add":""},{"Add":" var ret = std.ArrayList(Cuboid).init(a);"},{"Add":""},{"Add":" while (lines.next()) |line| {"},{"Add":" if (line.len == 0) break;"},{"Add":" var cube: Cuboid = undefined;"},{"Add":" var st_coord = std.mem.tokenize(u8, line, \" \");"},{"Add":""},{"Add":" // set cuboid state"},{"Add":" if (std.mem.eql(u8, st_coord.next().?, \"on\")) cube.state = 1 else cube.state = 0;"},{"Add":""},{"Add":" var axes = std.mem.tokenize(u8, st_coord.next().?, \",\");"},{"Add":" var cntr: u2 = 0;"},{"Add":" while (axes.next()) |ax| : (cntr += 1) {"},{"Add":" const axis = ax[2..]; // strip x=, y=, z="},{"Add":" std.debug.assert(cntr < 3);"},{"Add":" var min_max = std.mem.tokenize(u8, axis, \"..\");"},{"Add":""},{"Add":" // coordinates"},{"Add":" if (cntr == 0) {"},{"Add":" cube.xmin = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" cube.xmax = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" }"},{"Add":" if (cntr == 1) {"},{"Add":" cube.ymin = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" cube.ymax = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" }"},{"Add":" if (cntr == 2) {"},{"Add":" cube.zmin = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" cube.zmax = try std.fmt.parseInt(isize, min_max.next().?, 10);"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" try ret.append(cube);"},{"Add":" }"},{"Add":""},{"Add":" return ret.toOwnedSlice();"},{"Add":"}"},{"Add":""},{"Add":"test \"day22a\" {"},{"Add":" try std.testing.expectEqual(@as(usize, 607573), try first());"},{"Add":"}"}]}}],"owner":"voroskoi","repo":"aoc2021-zig","token":"yhC3o2RAdfDLMLQNobDn7LIHQcUvbb5eGXCGCW1ZUm0=","login":null}

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