src/days/day12.zig

@@ -111,26 +111,13 @@ pub fn run(allocator: std.mem.Allocator) !void {
         }
     }
 
-    var accumulator: usize = 0;
+    for (presents.items, 0..) |present, i| {
+        std.debug.print("{d}:\n{f}\n\n", .{i, present});
+    }
 
     for (regions.items) |region| {
-        var area_needed: usize = 0;
+        std.debug.print("{f}\n", .{region});
-        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;
-        }
-    }
-
-    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();
 }
 
 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;
-    }
 };