src/day14.zig

@@ -1,94 +0,0 @@
-const std = @import("std");
-const util = @import("util.zig");
-const mem = std.mem;
-
-pub fn main() !void {
-    const input = @embedFile("data/day14.txt");
-    const sln = try solve(util.gpa, input);
-    std.debug.print("{d}\n", .{sln.a});
-    std.debug.print("{d}\n", .{sln.b});
-}
-
-const Solution = struct {
-    a: usize,
-    b: usize,
-};
-
-fn northWeight(alloc: mem.Allocator, grid: [][]u8) !usize {
-    var next_slot = try alloc.alloc(u32, grid[0].len);
-    defer alloc.free(next_slot);
-    @memset(next_slot, 0);
-
-    var weight: usize = 0;
-    for (grid, 0..) |line, row| {
-        for (line, 0..) |char, col| {
-            switch (char) {
-                'O' => {
-                    weight += grid.len - next_slot[col];
-                    next_slot[col] += 1;
-                },
-                '#' => next_slot[col] = @as(u32, @intCast(row)) + 1,
-                else => {},
-            }
-        }
-    }
-    return weight;
-}
-
-fn spin(grid: [][]u8, n: usize) void {
-    _ = grid;
-    for (0..n) |_| {}
-}
-
-fn solve(alloc: mem.Allocator, input: []const u8) !Solution {
-    var height = mem.count(u8, input, &[_]u8{'\n'});
-    if (input[input.len - 1] != '\n') height += 1;
-
-    var grid = try alloc.alloc([]u8, height);
-    defer alloc.free(grid);
-
-    var it = util.splitLines(input);
-    var row: u32 = 0;
-    while (it.next()) |line| {
-        if (line.len == 0) continue;
-        grid[row] = try alloc.alloc(u8, line.len);
-        @memcpy(grid[row], line);
-        row += 1;
-    }
-
-    const w = try northWeight(alloc, grid);
-    spin(grid, 1000000000);
-    const v = try northWeight(alloc, grid);
-    _ = v;
-
-    for (grid) |line| {
-        alloc.free(line);
-    }
-    return .{ .a = w, .b = 0 };
-}
-
-test "silver" {
-    const input =
-        \\O....#....
-        \\O.OO#....#
-        \\.....##...
-        \\OO.#O....O
-        \\.O.....O#.
-        \\O.#..O.#.#
-        \\..O..#O..O
-        \\.......O..
-        \\#....###..
-        \\#OO..#....
-    ;
-    const sln = try solve(std.testing.allocator, input);
-    try std.testing.expectEqual(@as(usize, 136), sln.a);
-}
-
-test "gold" {
-    const input =
-        \\
-    ;
-    _ = input;
-    // const sln = try solve(std.testing.allocator, input);
-    // try std.testing.expectEqual(@as(usize, 0), sln.b);
-}