public static void Task2()
{
int ipIdx = 0;
int instrPt = 0;
int[] registers = new int[6];
List <OpCode> instructions = new List <OpCode>();
Dictionary <int, int> r0s = new Dictionary <int, int>();
using (StreamReader reader = new StreamReader(inputPath))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (line[0] == '#')
{
ipIdx = int.Parse(line[4].ToString());
}
else
{
string[] instr = line.Split(' ');
int[] nums = new int[]
{
int.Parse(instr[1]),
int.Parse(instr[2]),
int.Parse(instr[3])
};
instructions.Add(new OpCode(OpCode.GetCode(instr[0]), nums));
}
}
}
registers = new int[6];
instrPt = 0;
HashSet <int> r2s = new HashSet <int>();
while (true)
{
registers[ipIdx] = instrPt;
if (instrPt == 28)
{
if (r2s.Contains(registers[2]))
{
break;
}
r2s.Add(registers[2]);
}
instructions[instrPt].Exec(registers);
instrPt = registers[ipIdx];
instrPt++;
}
Console.WriteLine(r2s.Last());
}
public static void Task2()
{
int ipIdx = 0;
int instrPt = 0;
int[] registers = new int[6];
registers[0] = 1;
List <OpCode> instructions = new List <OpCode>();
List <int> register4 = new List <int>();
const int PATTERN_TRESHOLD = 200;
using (StreamReader reader = new StreamReader(inputPath))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (line[0] == '#')
{
ipIdx = int.Parse(line[4].ToString());
}
else
{
string[] instr = line.Split(' ');
int[] nums = new int[]
{
int.Parse(instr[1]),
int.Parse(instr[2]),
int.Parse(instr[3])
};
instructions.Add(new OpCode(OpCode.GetCode(instr[0]), nums));
}
}
}
for (int i = 0; i < PATTERN_TRESHOLD; i++)
{
registers[ipIdx] = instrPt;
instructions[instrPt].Exec(registers);
register4.Add(registers[4]);
instrPt = registers[ipIdx];
instrPt++;
}
var r4s = register4.GroupBy(x => x).Select(group => new { Number = group.Key, Count = group.Count() });
var r4 = r4s.Aggregate((l, r) => l.Count > r.Count ? l : r).Number;
var primes = FindFactors(r4);
int r0 = CalculateRegister0(primes);
Console.WriteLine(r0);
}
public static void Task1()
{
int ipIdx = 0;
int instrPt = 0;
int[] registers = new int[6];
List <OpCode> instructions = new List <OpCode>();
using (StreamReader reader = new StreamReader(inputPath))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (line[0] == '#')
{
ipIdx = int.Parse(line[4].ToString());
}
else
{
string[] instr = line.Split(' ');
int[] nums = new int[]
{
int.Parse(instr[1]),
int.Parse(instr[2]),
int.Parse(instr[3])
};
instructions.Add(new OpCode(OpCode.GetCode(instr[0]), nums));
}
}
}
while (instrPt < instructions.Count)
{
registers[ipIdx] = instrPt;
instructions[instrPt].Exec(registers);
instrPt = registers[ipIdx];
instrPt++;
}
Console.WriteLine(registers[0]);
}