[2024] Add Day 13: Claw Contraption

Author: ACSimon33

2024/13/claw_contraption/benchmarks/puzzle_benchmarks.zig

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+const std = @import("std");
+const zbench = @import("zbench");
+const claw_contraption = @import("claw_contraption");
+
+const puzzle_input = @embedFile("puzzle_input");
+
+// Benchmark of part 1
+fn task_1(_: std.mem.Allocator) void {
+    _ = claw_contraption.cost_to_win_all_prizes(puzzle_input, 0) catch {};
+}
+
+// Benchmark of part 2
+fn task_2(_: std.mem.Allocator) void {
+    _ = claw_contraption.cost_to_win_all_prizes(puzzle_input, 10000000000000) catch {};
+}
+
+pub fn main() !void {
+    const stdout = std.io.getStdOut().writer();
+    var bench = zbench.Benchmark.init(std.heap.page_allocator, .{});
+    defer bench.deinit();
+
+    try bench.add("Day 13 - Task 1", task_1, .{});
+    try bench.add("Day 13 - Task 2", task_2, .{});
+
+    try stdout.writeAll("\n");
+    try bench.run(stdout);
+}

2024/13/claw_contraption/build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    // -------------------------- Solution module --------------------------- \\
+    const claw_contraption = b.addModule("claw_contraption", .{
+        .root_source_file = b.path("src/claw_contraption.zig"),
+    });
+
+    // -------------------------- Main executable --------------------------- \\
+    const claw_contraption_exe = b.addExecutable(.{
+        .name = "claw_contraption",
+        .root_source_file = b.path("src/main.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const yazap = b.dependency("yazap", .{});
+    claw_contraption_exe.root_module.addImport("yazap", yazap.module("yazap"));
+    claw_contraption_exe.root_module.addImport("claw_contraption", claw_contraption);
+    b.installArtifact(claw_contraption_exe);
+
+    const run_cmd = b.addRunArtifact(claw_contraption_exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run Claw Contraption (day 13) app");
+    run_step.dependOn(&run_cmd.step);
+
+    // --------------------------- Example tests ---------------------------- \\
+    const claw_contraption_tests = b.addTest(.{
+        .name = "claw_contraption_tests",
+        .root_source_file = b.path("tests/example_tests.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    claw_contraption_tests.root_module.addImport("claw_contraption", claw_contraption);
+    claw_contraption_tests.root_module.addAnonymousImport("example_input", .{
+        .root_source_file = b.path("input/example_input.txt"),
+    });
+    b.installArtifact(claw_contraption_tests);
+
+    const test_step = b.step("test", "Run Claw Contraption (day 13) tests");
+    test_step.dependOn(&b.addRunArtifact(claw_contraption_tests).step);
+
+    // ------------------------- Puzzle benchmarks -------------------------- \\
+    const claw_contraption_benchmarks = b.addExecutable(.{
+        .name = "claw_contraption_benchmarks",
+        .root_source_file = b.path("benchmarks/puzzle_benchmarks.zig"),
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const zbench = b.dependency("zbench", .{
+        .target = target,
+        .optimize = optimize,
+    });
+    claw_contraption_benchmarks.root_module.addImport("zbench", zbench.module("zbench"));
+    claw_contraption_benchmarks.root_module.addImport("claw_contraption", claw_contraption);
+    claw_contraption_benchmarks.root_module.addAnonymousImport("puzzle_input", .{
+        .root_source_file = b.path("input/puzzle_input.txt"),
+    });
+    b.installArtifact(claw_contraption_benchmarks);
+
+    const benchmark_step = b.step("benchmark", "Run Claw Contraption (day 13) benchmarks");
+    benchmark_step.dependOn(&b.addRunArtifact(claw_contraption_benchmarks).step);
+}

2024/13/claw_contraption/build.zig.zon

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+.{
+    .name = "claw_contraption",
+    .version = "0.1.0",
+    .minimum_zig_version = "0.13.0",
+    .dependencies = .{
+        .yazap = .{
+            .url = "git+https://github.com/prajwalch/yazap#c2e3122d5dd6192513ba590f229dbc535110efb8",
+            .hash = "122054439ec36ac10987c87ae69f3b041b40b2e451af3fe3ef1fc578b3bad756a800",
+        },
+        .zbench = .{
+            .url = "git+https://github.com/hendriknielaender/zBench#fb3ecae5d035091fd2392a2ec21970c06fc375fa",
+            .hash = "122095b73930ff5d627429295c669905d85bb9b54394ddc185ad2d61295cc65819e5",
+        },
+    },
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+        "input",
+        "tests",
+        "benchmarks",
+    },
+}

2024/13/claw_contraption/input/example_input.txt

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+Button A: X+94, Y+34
+Button B: X+22, Y+67
+Prize: X=8400, Y=5400
+
+Button A: X+26, Y+66
+Button B: X+67, Y+21
+Prize: X=12748, Y=12176
+
+Button A: X+17, Y+86
+Button B: X+84, Y+37
+Prize: X=7870, Y=6450
+
+Button A: X+69, Y+23
+Button B: X+27, Y+71
+Prize: X=18641, Y=10279