src/days/day01.zig

@@ -4,66 +4,5 @@ pub const title = "Day 01: Secret Entrance";
 
 pub fn run(_: std.mem.Allocator) !void {
     const input = @embedFile("./input/day01.txt");
-    var lines = std.mem.tokenizeScalar(u8, input, '\n');
-
-    const starting_position = 50;
-    var position: u32 = starting_position;
-
-    var zero_hits: u32 = 0;
-
-    while (lines.next()) |line| {
-        if (line.len == 0) continue;
-
-        const direction: Direction = if (line[0] == 'L') .left else if (line[0] == 'R') .right else continue;
-        const amount = try std.fmt.parseUnsigned(u32, line[1..], 10);
-
-        try updatePosition(&position, &zero_hits, direction, amount, 100);
-        // Part 1:
-        // if (position == 0) {
-        //     zero_hits += 1;
-        // }
-
-        std.debug.print("{s} => {d}\n", .{line, position});
-    }
-
-    var buffer: [8]u8 = undefined;
-    var stdout_writer = std.fs.File.stdout().writer(&buffer);
-    const stdout = &stdout_writer.interface;
-
-    try stdout.print("{d}\n", .{zero_hits});
-
-    try stdout.flush();
-}
-
-const Direction = enum {
-    left,
-    right,
-};
-
-fn updatePosition(
-    position: *u32,
-    zero_hits: *u32,
-    direction: Direction,
-    amount: u32,
-    upper_bound: u32,
-) !void {
-    switch (direction) {
-        .left => {
-            for (0..amount) |_| {
-                if (position.* == 0) position.* = upper_bound;
-                position.* -= 1;
-                if (position.* == 0) zero_hits.* += 1;
-            }
-        },
-        .right => {
-            for (0..amount) |_| {
-                position.* += 1;
-                if (position.* == 100) {
-                    zero_hits.* += 1;
-                    position.* = 0;
-                }
-            }
-        },
-    }
 }