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www.mikescher.com/www/statics/aoc/2018/19_solution-1.linq

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2019-11-02 20:19:34 +01:00
<Query Kind="Program" />
class Command { public String Name; public (string, Action<int[], Command>) Op; public int[] Args; public int Dst => Args[2]; public int Arg1 => Args[0]; public int Arg2 => Args[1]; }
(string, Action<int[], Command>)[] Operations = new(string, Action<int[], Command>)[]
{
("addr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] + reg[cmd.Arg2]; } ),
("addi", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] + cmd.Arg2; } ),
("mulr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] * reg[cmd.Arg2]; } ),
("muli", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] * cmd.Arg2; } ),
("banr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] & reg[cmd.Arg2]; } ),
("bani", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] & cmd.Arg2; } ),
("borr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] | reg[cmd.Arg2]; } ),
("bori", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] | cmd.Arg2; } ),
("setr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1]; } ),
("seti", (reg, cmd) => { reg[cmd.Dst] = cmd.Arg1; } ),
("gtir", (reg, cmd) => { reg[cmd.Dst] = cmd.Arg1 > reg[cmd.Arg2] ? 1:0; } ),
("gtri", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] > cmd.Arg2 ? 1:0; } ),
("gtrr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] > reg[cmd.Arg2] ? 1:0; } ),
("eqir", (reg, cmd) => { reg[cmd.Dst] = cmd.Arg1 == reg[cmd.Arg2] ? 1:0; } ),
("eqri", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] == cmd.Arg2 ? 1:0; } ),
("eqrr", (reg, cmd) => { reg[cmd.Dst] = reg[cmd.Arg1] == reg[cmd.Arg2] ? 1:0; } ),
};
void Main()
{
(var commands, var ipidx) = Load(File.ReadAllLines(Path.Combine(Path.GetDirectoryName(Util.CurrentQueryPath), @"19_input.txt")));
int[] data = new int[255];
for (int gen=0;;gen++)
{
if (data[ipidx]<0 || data[ipidx]>=commands.Count) break;
var cmd = commands[data[ipidx]];
cmd.Op.Item2(data, cmd);
//string.Join(" ", data.Take(6)).Dump();
data[ipidx]++;
}
data[0].Dump();
}
(List<Command>, int) Load(string[] input)
{
return
(
input
.Skip(1)
.Where(i => !string.IsNullOrWhiteSpace(i))
.Select(i => new Command { Name = i.Split(' ')[0], Op=Operations.Single(o => o.Item1.ToLower() == i.Split(' ')[0].ToLower()), Args = i.Split(' ').Skip(1).Select(int.Parse).ToArray() })
.ToList(),
int.Parse(input[0].Split(' ')[1])
);
}