Solve Day01
Created by voroskoi on December 1, 2023
2XTKU6ZSH477NYFWP7VD6WUF5BITZMQ3AR3AW57HNEY3EMVGOV5AC Dependencies
In channels
main
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File addition: src
[2.1]File addition: main.zig
[0.15]const std = @import("std");const Str = []const u8;const DAYS = 1;const aoc2022 = struct {const day01 = @import("day01.zig");};test {_ = @import("day01.zig");}pub fn main() anyerror!void {var timer = try std.time.Timer.start();var time_sum: usize = 0;var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);defer arena.deinit();var buffer = std.io.bufferedWriter(std.io.getStdOut().writer());const stdout = buffer.writer();try stdout.print("{s:<8}{s:>45}{s:>20}\n", .{ "Day", "Result", "Time" });comptime var day: u5 = 0;inline while (day < DAYS) : (day += 1) {comptime var buf: [5]u8 = undefined;const day_str = comptime try std.fmt.bufPrint(&buf, "day{d:0>2}", .{day + 1});timer.reset();const first_res = @field(aoc2022, day_str).first(arena.allocator()) catch unreachable;const first_time = timer.read() / std.time.ns_per_us;time_sum += first_time;switch (@TypeOf(first_res)) {Str => try stdout.print("{s}a: {s:>45}{d:>20} us\n", .{ day_str, first_res, first_time }),usize, isize => try stdout.print("{s}a: {d:>45}{d:>20} us\n", .{ day_str, first_res, first_time }),else => try stdout.print("{s}a: {s:>45}{d:>20} us\n", .{ day_str, "", first_time }),}if (day < 24) {timer.reset();const second_res = @field(aoc2022, day_str).second(arena.allocator()) catch unreachable;const second_time = timer.read() / std.time.ns_per_us;time_sum += second_time;switch (@TypeOf(second_res)) {Str => try stdout.print("{s}b: {s:>45}{d:>20} us\n", .{ day_str, second_res, second_time }),usize, isize => try stdout.print("{s}b: {d:>45}{d:>20} us\n", .{ day_str, second_res, second_time }),else => try stdout.print("{s}b: {s:>45}{d:>20} us\n", .{ day_str, "PZGPKPEB", second_time }),}}}try stdout.print("Total time: {d} ms\n", .{time_sum / std.time.us_per_ms});try buffer.flush();}File addition: input
[0.15]File addition: day01.txt
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addition: day01.zig
[0.15]const std = @import("std");const PATH = "input/day01.txt";pub fn first(allocator: std.mem.Allocator) !usize {_ = allocator;var sum: usize = 0;var lines = std.mem.split(u8, @embedFile(PATH), "\n");while (lines.next()) |line| {if (line.len == 0) break;var digits: [2]u8 = undefined;for (line) |ch| {switch (ch) {'0'...'9' => {digits[0] = ch;break;},else => {},}}// std.debug.print("#{s}#\n", .{line});var i = line.len - 1;while (i >= 0) : (i -= 1) {switch (line[i]) {'0'...'9' => {digits[1] = line[i];break;},else => {},}}sum += try std.fmt.parseUnsigned(usize, &digits, 10);}return sum;}pub fn second(allocator: std.mem.Allocator) !usize {_ = allocator;var sum: usize = 0;var lines = std.mem.split(u8, @embedFile(PATH), "\n");while (lines.next()) |line| {if (line.len == 0) break;// std.debug.print("{s} {d}\n", .{ line, line.len });var fd: bool = true;var digits: [2]u8 = .{ '0', '0' };for (line, 0..line.len) |ch, i| {// std.debug.print("{d} {c}\n", .{ i, ch });switch (ch) {'0'...'9' => {if (fd) {digits[0] = ch;fd = false;} else digits[1] = ch;},'o' => {if (line.len >= i + 3 and std.mem.eql(u8, "one", line[i .. i + 3])) {if (fd) {digits[0] = '1';fd = false;} else digits[1] = '1';}},'t' => {if (line.len >= i + 3 and std.mem.eql(u8, "two", line[i .. i + 3])) {if (fd) {digits[0] = '2';fd = false;} else digits[1] = '2';}if (line.len >= i + 5 and std.mem.eql(u8, "three", line[i .. i + 5])) {if (fd) {digits[0] = '3';fd = false;} else digits[1] = '3';}},'f' => {if (line.len >= i + 4 and std.mem.eql(u8, "four", line[i .. i + 4])) {if (fd) {digits[0] = '4';fd = false;} else digits[1] = '4';}if (line.len >= i + 4 and std.mem.eql(u8, "five", line[i .. i + 4])) {if (fd) {digits[0] = '5';fd = false;} else digits[1] = '5';}},'s' => {if (line.len >= i + 3 and std.mem.eql(u8, "six", line[i .. i + 3])) {if (fd) {digits[0] = '6';fd = false;} else digits[1] = '6';}if (line.len >= i + 5 and std.mem.eql(u8, "seven", line[i .. i + 5])) {if (fd) {digits[0] = '7';fd = false;} else digits[1] = '7';}},'e' => {if (line.len >= i + 5 and std.mem.eql(u8, "eight", line[i .. i + 5])) {if (fd) {digits[0] = '8';fd = false;} else digits[1] = '8';}},'n' => {if (line.len >= i + 4 and std.mem.eql(u8, "nine", line[i .. i + 4])) {if (fd) {digits[0] = '9';fd = false;} else digits[1] = '9';}},else => {},}}// std.debug.print("{s}: {s}\n", .{ line, digits });if (digits[1] == '0') digits[1] = digits[0];sum += try std.fmt.parseUnsigned(usize, &digits, 10);}return sum;}test "day01a" {try std.testing.expectEqual(@as(usize, 54927), try first(std.testing.allocator));}test "day01b" {try std.testing.expectEqual(@as(usize, 54581), try second(std.testing.allocator));}const test_input =\\1abc2\\pqr3stu8vwx\\a1b2c3d4e5f\\treb7uchet;const test_input2 =\\two1nine\\eightwothree\\abcone2threexyz\\xtwone3four\\4nineeightseven2\\zoneight234\\7pqrstsixteen;File addition: build.zig
[2.1]const std = @import("std");pub fn build(b: *std.build.Builder) void {const target = b.standardTargetOptions(.{});const optimize = b.standardOptimizeOption(.{});const exe = b.addExecutable(std.build.ExecutableOptions{.name = "aoc2022",.root_source_file = std.build.FileSource{ .path = "src/main.zig" },.target = target,.optimize = optimize,});b.installArtifact(exe);const run_cmd = b.addRunArtifact(exe);run_cmd.step.dependOn(b.getInstallStep());if (b.args) |args| {run_cmd.addArgs(args);}const run_step = b.step("run", "Run all solver");run_step.dependOn(&run_cmd.step);const exe_tests = b.addTest(std.build.TestOptions{.root_source_file = std.build.FileSource{ .path = "src/main.zig" },.target = target,.optimize = optimize,});const test_cmd = b.addRunArtifact(exe_tests);const test_step = b.step("test", "Run unit tests");test_step.dependOn(&test_cmd.step);}