diff options
| -rw-r--r-- | day2.in | 100 | ||||
| -rw-r--r-- | day2.zig | 67 | ||||
| -rw-r--r-- | day2_sample.in | 5 |
3 files changed, 171 insertions, 1 deletions
@@ -0,0 +1,100 @@ +Game 1: 2 blue, 3 red; 3 green, 3 blue, 6 red; 4 blue, 6 red; 2 green, 2 blue, 9 red; 2 red, 4 blue +Game 2: 4 red, 1 green; 3 red; 13 green, 5 red, 3 blue; 3 green, 2 red; 3 blue, 5 red, 3 green; 2 red, 3 blue, 12 green +Game 3: 4 red, 1 green, 1 blue; 1 red, 1 blue; 6 red, 1 green; 6 red, 3 blue, 1 green; 4 red +Game 4: 4 blue, 12 red, 4 green; 6 green, 3 blue, 19 red; 3 blue, 2 red, 2 green +Game 5: 1 red, 5 blue, 16 green; 1 red, 6 green, 3 blue; 2 red, 12 blue; 17 blue, 3 green; 7 green, 2 red, 6 blue +Game 6: 3 green, 1 blue, 5 red; 5 green, 5 red; 2 green, 2 blue, 3 red; 5 green, 2 red; 3 green, 6 red, 3 blue; 5 green, 4 red +Game 7: 15 blue, 1 red, 6 green; 4 blue, 7 green, 2 red; 14 blue, 5 green, 2 red +Game 8: 6 blue, 3 green, 10 red; 2 blue, 1 green, 5 red; 6 blue, 3 green, 12 red; 11 red, 1 green, 1 blue; 5 blue, 14 red, 3 green; 3 red +Game 9: 15 red, 3 blue; 1 blue, 16 red; 1 red, 3 blue; 1 blue, 1 green, 9 red +Game 10: 1 red; 1 blue, 7 green; 1 green, 5 blue; 3 blue, 3 green; 1 green +Game 11: 19 blue, 13 green; 19 blue, 2 green; 10 blue, 3 red, 12 green; 11 blue, 1 red, 6 green +Game 12: 7 green, 5 blue; 6 green, 3 red, 6 blue; 2 red, 5 blue, 15 green; 2 red, 1 blue, 1 green; 4 red, 4 green, 2 blue; 3 blue, 6 green +Game 13: 9 red, 2 blue, 2 green; 1 blue, 2 red, 15 green; 9 green, 2 blue, 9 red; 5 blue, 8 green, 5 red; 2 blue, 11 green, 5 red +Game 14: 9 blue, 1 red; 10 blue, 4 green, 3 red; 2 red, 6 blue; 4 green, 2 blue, 1 red; 5 green, 2 red, 11 blue; 12 blue, 2 red, 1 green +Game 15: 9 blue, 7 green, 12 red; 9 red, 17 green, 8 blue; 6 red, 4 blue, 4 green; 5 red, 17 green +Game 16: 5 green, 4 red; 3 blue, 3 red, 14 green; 6 red, 5 blue, 12 green +Game 17: 8 blue, 5 green, 2 red; 6 red, 6 blue; 9 red; 5 blue, 2 green, 8 red; 13 red, 4 blue, 4 green; 9 blue, 3 green, 5 red +Game 18: 8 green, 1 red, 2 blue; 4 green, 4 red, 1 blue; 6 blue, 2 red +Game 19: 3 green, 9 blue; 4 blue, 10 red; 6 red, 3 green, 3 blue; 6 red, 4 green, 9 blue +Game 20: 11 green, 3 blue; 6 green; 3 green, 6 blue; 1 red, 5 green; 6 blue, 7 green +Game 21: 1 green, 1 blue, 12 red; 6 red, 2 blue; 5 green, 4 red, 2 blue; 11 red, 8 green, 1 blue +Game 22: 10 red; 1 red, 13 green, 9 blue; 6 blue, 12 red, 12 green; 10 red, 8 blue, 11 green; 2 green, 1 red, 3 blue; 7 red, 1 blue, 8 green +Game 23: 11 red, 15 blue; 10 blue, 16 red, 1 green; 14 blue, 5 red; 1 green, 9 red, 9 blue; 1 red, 7 blue, 3 green; 6 red, 2 green, 3 blue +Game 24: 6 blue, 11 red; 16 green, 2 red, 1 blue; 8 red, 7 blue; 14 blue, 9 green, 9 red; 13 green, 4 red, 8 blue; 2 red, 7 blue, 1 green +Game 25: 2 green, 12 blue, 1 red; 10 blue, 5 red, 5 green; 2 blue, 9 red, 3 green; 5 blue, 4 red, 2 green +Game 26: 7 blue, 6 red, 1 green; 2 blue, 3 green, 12 red; 2 blue, 6 red, 5 green +Game 27: 2 green, 3 red; 4 green; 2 red, 1 blue, 1 green; 2 red, 1 green, 2 blue +Game 28: 11 blue, 1 red, 5 green; 2 blue, 2 red, 4 green; 10 blue, 4 red, 1 green +Game 29: 6 blue, 17 red, 1 green; 8 blue, 4 red; 14 blue, 1 red, 3 green +Game 30: 2 blue, 4 green; 7 green, 1 blue, 1 red; 1 blue, 8 green +Game 31: 15 blue, 9 green, 2 red; 5 green, 4 blue, 1 red; 1 green, 15 red, 7 blue; 5 red, 2 blue +Game 32: 1 blue, 5 red, 3 green; 3 green, 8 red, 1 blue; 5 green, 1 red; 4 green, 3 blue, 15 red; 2 green, 1 blue; 4 blue, 15 red, 4 green +Game 33: 3 red, 10 blue; 4 red, 9 blue; 1 green, 10 blue +Game 34: 3 blue, 1 green, 9 red; 4 green, 2 red, 9 blue; 7 blue, 3 red; 6 blue, 13 red; 4 green, 13 blue, 9 red +Game 35: 14 red, 1 green; 1 red, 2 green, 4 blue; 3 blue, 10 red, 6 green; 5 blue, 6 red, 7 green; 7 blue, 5 red +Game 36: 2 blue, 8 red, 9 green; 9 green, 3 red, 10 blue; 6 red, 8 blue, 1 green; 6 green, 8 red, 4 blue +Game 37: 10 green, 3 red, 6 blue; 2 blue, 9 red, 5 green; 13 green, 9 red, 10 blue; 2 blue, 4 green, 9 red +Game 38: 4 red, 14 blue, 12 green; 6 red, 12 green, 18 blue; 6 green, 1 blue, 1 red +Game 39: 5 red, 1 blue, 3 green; 1 blue, 3 green, 8 red; 15 red, 1 blue, 5 green; 3 green, 5 red; 1 blue, 14 red; 3 green, 1 blue, 12 red +Game 40: 8 green, 4 blue; 5 blue, 7 red, 8 green; 5 blue, 8 green; 6 green, 3 red, 12 blue; 14 blue, 7 green, 2 red; 1 green, 7 red, 5 blue +Game 41: 7 red, 10 green; 10 red, 6 green; 9 red, 7 green, 1 blue; 3 red, 1 blue +Game 42: 3 green, 2 blue, 13 red; 1 blue, 3 red; 11 green, 16 red; 3 green, 1 blue, 16 red; 5 red, 8 green +Game 43: 12 blue, 9 red; 16 blue, 2 red, 7 green; 4 red, 1 blue, 11 green; 15 blue, 4 red, 9 green +Game 44: 17 green, 5 blue, 2 red; 9 green, 11 blue, 1 red; 20 green, 3 blue, 8 red; 2 red, 13 green, 9 blue; 15 green, 12 blue; 4 blue, 7 green, 9 red +Game 45: 5 green; 5 green, 1 red; 3 green, 2 blue; 1 green, 1 blue, 1 red +Game 46: 10 red, 11 green; 16 green, 8 blue, 12 red; 9 green, 9 blue +Game 47: 20 green, 17 red, 1 blue; 16 red, 2 blue, 11 green; 3 blue, 19 red, 1 green; 3 blue, 17 red, 17 green; 12 green, 2 blue, 7 red +Game 48: 1 red, 4 blue, 6 green; 19 green, 1 red, 1 blue; 16 green, 3 blue, 1 red; 3 blue, 17 green; 4 blue, 12 green +Game 49: 13 green, 2 blue, 1 red; 1 green, 8 red, 2 blue; 11 red, 11 green, 3 blue; 7 red, 8 green, 4 blue +Game 50: 11 blue, 1 red, 2 green; 1 green, 10 blue; 1 blue; 6 blue; 1 green, 2 blue +Game 51: 3 red, 3 green, 1 blue; 3 green, 3 red; 10 green, 4 red; 3 red, 2 green +Game 52: 1 red, 4 blue; 1 green, 11 blue; 1 green, 3 red, 6 blue; 4 red, 1 green, 4 blue; 9 blue, 1 green; 10 blue, 1 green +Game 53: 2 blue, 4 green, 1 red; 8 blue, 4 red, 7 green; 9 red, 7 blue, 6 green; 3 red, 7 green, 1 blue; 2 red, 9 blue, 5 green; 1 green, 7 red, 10 blue +Game 54: 1 red, 1 blue, 5 green; 2 red, 1 green, 2 blue; 3 green, 3 blue, 2 red; 4 red; 12 red, 5 green, 2 blue +Game 55: 2 red, 11 blue; 16 green, 7 red, 16 blue; 4 blue, 11 green, 7 red; 8 green, 18 blue, 8 red +Game 56: 2 blue, 2 green, 1 red; 1 red, 1 green; 1 red; 4 green; 1 blue; 1 blue, 7 green +Game 57: 4 blue, 3 green; 16 green, 2 red, 5 blue; 1 red, 13 green, 2 blue; 3 blue, 12 green, 2 red; 2 red, 5 blue, 4 green; 10 green, 2 blue +Game 58: 3 blue, 8 green; 4 green, 3 blue; 7 green, 5 blue, 5 red; 8 green; 3 red, 6 blue, 9 green; 2 red, 10 green, 4 blue +Game 59: 7 blue, 6 green, 5 red; 7 red, 2 blue; 5 red, 11 green, 14 blue; 8 green, 17 red +Game 60: 3 green, 8 blue, 2 red; 4 green, 7 blue, 6 red; 13 blue, 8 green, 2 red; 10 red, 6 blue, 5 green; 11 green, 3 blue, 4 red; 9 red, 5 green, 9 blue +Game 61: 4 red, 18 blue, 13 green; 9 green, 5 red, 3 blue; 4 green, 3 blue, 4 red; 8 red, 4 green, 7 blue; 8 red, 4 blue, 6 green; 10 green, 5 red, 14 blue +Game 62: 12 red, 14 blue, 9 green; 9 blue, 6 red, 4 green; 2 red, 5 blue; 1 red, 12 blue +Game 63: 11 blue, 13 red, 11 green; 4 blue, 9 green; 8 blue, 9 red; 7 red, 11 green, 7 blue +Game 64: 10 blue, 8 red, 12 green; 10 red, 12 blue, 9 green; 3 green, 17 red; 12 green, 15 blue, 16 red; 6 green, 15 blue, 1 red; 9 red, 6 blue, 10 green +Game 65: 7 red, 7 blue; 3 blue, 1 red, 1 green; 3 red, 8 blue +Game 66: 1 blue, 3 red; 10 green, 5 blue; 4 green; 3 red, 11 green; 3 blue, 15 green, 3 red +Game 67: 1 red; 2 blue, 2 green, 1 red; 6 green, 1 blue +Game 68: 7 red, 4 blue; 4 blue, 6 red, 7 green; 2 green, 19 red, 11 blue; 11 green, 9 red +Game 69: 4 blue, 3 green, 1 red; 7 blue, 1 red, 3 green; 5 blue, 1 green; 2 blue, 10 green, 2 red; 2 red, 6 green, 5 blue; 1 red, 4 green, 2 blue +Game 70: 9 blue, 7 red, 6 green; 19 blue, 4 red, 5 green; 6 blue, 7 red, 4 green; 3 blue, 4 red, 2 green +Game 71: 6 green, 12 blue, 4 red; 11 red, 10 green, 11 blue; 3 red, 14 blue, 13 green; 4 blue, 3 green +Game 72: 2 green, 1 blue, 9 red; 10 red, 3 green, 1 blue; 11 red, 2 green; 2 green, 1 blue, 5 red; 1 red, 1 blue, 3 green; 13 red, 4 blue, 1 green +Game 73: 11 green, 6 blue; 7 green, 6 blue, 7 red; 12 green, 8 blue, 11 red; 4 red, 2 blue, 9 green; 4 green, 7 blue, 2 red +Game 74: 3 blue, 7 red; 3 blue, 5 green, 2 red; 5 red, 1 green, 3 blue; 8 green, 2 blue, 11 red; 3 blue, 8 green, 10 red +Game 75: 2 green; 5 blue; 1 blue, 1 red; 1 red, 9 blue, 2 green; 2 blue, 2 green +Game 76: 12 blue, 13 green; 5 red, 11 blue, 9 green; 12 green, 6 red +Game 77: 1 blue, 15 green, 12 red; 15 green, 5 blue; 14 green, 3 blue, 8 red +Game 78: 11 green, 8 blue, 1 red; 9 green, 8 blue, 1 red; 13 green, 5 red, 6 blue; 5 red, 7 green, 20 blue; 10 blue, 5 red +Game 79: 3 blue; 6 blue, 5 red; 4 red, 1 green, 4 blue; 7 blue, 6 red; 7 red, 1 blue; 1 red, 1 blue, 1 green +Game 80: 11 green, 3 red, 8 blue; 2 red, 15 green, 2 blue; 5 green, 8 blue, 2 red; 8 blue, 14 green; 2 blue, 13 green +Game 81: 9 red, 4 green; 7 green, 4 red; 2 red, 4 blue, 6 green; 6 red, 4 blue, 9 green; 1 green, 3 red; 6 green, 1 blue, 8 red +Game 82: 5 blue, 3 red, 3 green; 5 red; 2 red, 3 green, 8 blue +Game 83: 10 green, 1 red, 1 blue; 3 red, 1 green, 1 blue; 4 red, 10 green +Game 84: 16 red, 2 green, 6 blue; 6 red, 3 green, 8 blue; 3 green, 10 red, 5 blue; 4 blue, 3 green; 15 red +Game 85: 3 green, 2 red; 5 green, 4 blue; 5 green, 8 red, 3 blue +Game 86: 7 green, 16 blue, 7 red; 1 green, 12 red, 2 blue; 15 green, 16 blue, 7 red +Game 87: 1 red, 6 green, 5 blue; 2 green, 1 blue; 2 green, 1 red, 1 blue; 5 green, 4 blue +Game 88: 3 green, 3 red, 4 blue; 1 red, 1 green; 6 blue, 9 red, 1 green; 1 green, 11 red, 3 blue; 7 red, 6 blue +Game 89: 2 blue, 3 red, 4 green; 5 red, 7 blue, 14 green; 8 blue, 5 red, 16 green; 2 blue, 5 red, 7 green; 5 green, 9 blue, 1 red +Game 90: 1 blue, 3 red, 7 green; 11 green, 4 red, 1 blue; 1 red, 1 blue, 6 green; 2 blue, 2 green; 8 green, 2 blue; 3 red, 2 blue, 4 green +Game 91: 6 blue, 4 red, 1 green; 8 red, 3 blue, 3 green; 1 green, 2 blue, 5 red; 1 blue, 3 green +Game 92: 8 green, 1 red, 5 blue; 2 green, 7 blue; 11 blue, 5 green, 8 red; 7 blue, 3 red, 4 green +Game 93: 3 green, 1 red, 9 blue; 13 red, 5 blue, 8 green; 5 green, 2 red, 7 blue +Game 94: 4 green, 10 blue, 8 red; 4 red, 10 blue, 2 green; 2 green, 10 blue, 5 red; 5 green, 2 red, 10 blue +Game 95: 5 green, 1 blue; 3 blue, 11 green, 8 red; 8 blue, 2 red, 12 green; 4 green, 4 blue, 4 red +Game 96: 1 blue, 13 green; 8 blue, 3 red, 4 green; 1 red, 3 blue, 10 green +Game 97: 18 green, 4 red; 1 blue, 2 red, 9 green; 6 red, 3 blue, 10 green; 3 blue, 15 green, 4 red +Game 98: 2 blue, 3 green, 6 red; 1 green, 1 blue, 8 red; 8 red, 3 green, 1 blue; 2 blue; 8 red, 2 green, 2 blue +Game 99: 1 green, 2 red, 1 blue; 8 green, 4 blue, 1 red; 7 blue, 1 red, 11 green; 9 green, 3 blue; 1 red, 2 blue; 1 red, 6 blue +Game 100: 7 blue, 9 green, 2 red; 5 red, 9 green; 1 blue, 8 red, 13 green
\ No newline at end of file @@ -1,8 +1,73 @@ const std = @import("std"); const Setup = @import("common.zig").Setup; +const Colour = enum { + red, green, blue , + fn parse(str: []const u8) !Colour { + const ei = @typeInfo(Colour).Enum; + inline for (ei.fields) |field| { + if (std.mem.eql(u8, field.name, str)) { + return @enumFromInt(field.value); + } + } else { + return error.InvalidColour; + } + } +}; + pub fn main() !void { var setup = try Setup.get(); defer setup.deinit(); - + var sum: u32 = 0; + var lines = std.mem.splitScalar(u8, setup.input, '\n'); + const maxred: u32 = 12; + const maxgreen: u32 = 13; + const maxblue: u32 = 14; + while (lines.next()) |line| { + var spl = std.mem.split(u8, line, ": "); + const game_no_str = spl.first(); + const game_no = try std.fmt.parseInt(u32, game_no_str[5..game_no_str.len], 10); // "Game " prefix skipped + const game_str = spl.next() orelse return error.NoGame; + var turns = std.mem.split(u8, game_str, "; "); + var gamemaxred: u32 = 0; + var gamemaxgreen: u32 = 0; + var gamemaxblue: u32 = 0; + + while (turns.next()) |turn| { + var cols = std.mem.split(u8, turn, ", "); + while (cols.next()) |col| { + var spl2 = std.mem.split(u8, col, " "); + const num = try std.fmt.parseInt(u32, spl2.first(), 10); + const col_str = spl2.next() orelse return error.NoColour; + const c = try Colour.parse(col_str); + switch(c) { + .blue => { + gamemaxblue = @max(num, gamemaxblue); + }, + .green => { + gamemaxgreen = @max(num, gamemaxgreen); + }, + .red => { + gamemaxred = @max(num, gamemaxred); + }, + } + } + } + switch (setup.part) { + .pt1 => { + if (gamemaxblue <= maxblue and gamemaxgreen <= maxgreen and gamemaxred <= maxred) { + sum += game_no; + } else { + //std.log.warn("game was impossible {s}", .{line}); + } + }, + .pt2 => { + const power = gamemaxblue * gamemaxgreen * gamemaxred; + sum += power; + }, + } + + //turns.next() + } + try std.fmt.format(std.io.getStdOut().writer(), "answer: {}\n", .{sum}); }
\ No newline at end of file diff --git a/day2_sample.in b/day2_sample.in index e69de29..1cd7d33 100644 --- a/day2_sample.in +++ b/day2_sample.in @@ -0,0 +1,5 @@ +Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green +Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue +Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red +Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red +Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green
\ No newline at end of file |