diff --git a/src/days/day12.zig b/src/days/day12.zig index 26d586b..d940d18 100644 --- a/src/days/day12.zig +++ b/src/days/day12.zig @@ -111,26 +111,13 @@ pub fn run(allocator: std.mem.Allocator) !void { } } - var accumulator: usize = 0; - - for (regions.items) |region| { - var area_needed: usize = 0; - for (region.required_presents, 0..) |amount, i| { - area_needed += amount * presents.items[i].area(); - } - if (area_needed < region.area()) { - std.debug.print("{f}\nfits\n", .{region}); - accumulator += 1; - } + for (presents.items, 0..) |present, i| { + std.debug.print("{d}:\n{f}\n\n", .{i, present}); } - var buffer: [8]u8 = undefined; - var stdout_writer = std.fs.File.stdout().writer(&buffer); - const stdout = &stdout_writer.interface; - - try stdout.print("{d}\n", .{accumulator}); - - try stdout.flush(); + for (regions.items) |region| { + std.debug.print("{f}\n", .{region}); + } } const Present = struct { @@ -160,10 +147,6 @@ const Present = struct { const index = (y * Width) + x; return self.shape.isSet(index); } - - pub fn area(self: Self) usize { - return self.shape.count(); - } }; const Region = struct { @@ -186,54 +169,5 @@ const Region = struct { } } } - - pub fn createEmpty(self: Self, allocator: std.mem.Allocator) !EmptyRegion { - return try .init(allocator, self.width, self.height); - } - - pub fn area(self: Self) usize { - return self.width * self.height; - } -}; - -const EmptyRegion = struct { - grid: [][]bool, - filled_spaces: usize, - - allocator: std.mem.Allocator, - - const Self = @This(); - - pub fn init(allocator: std.mem.Allocator, width: u8, height: u8) !Self { - const h = try allocator.alloc([]bool, height); - for (0..height) |i| { - const w = try allocator.alloc(u8, width); - @memset(w, false); - h[i] = w; - } - return .{ - .grid = h, - .filled_spaces = 0, - .allocator = allocator, - }; - } - - pub fn deinit(self: Self) void { - for (self.grid) |row| { - self.allocator.free(row); - } - self.allocator.free(self.grid); - } - - pub fn fits(self: Self, present: Present) bool { - std.debug.assert(self.grid.len > 0); - const size = self.grid.len * self.grid[0].len; - if ((size - self.filled_spaces) < present.shape.count()) { - return false; - } - - // TODO: Implementation - return false; - } };