// Part 1
static ExecutionData ExecuteBootCode(string[] bootCode)
{
ExecutionData executionData = new ExecutionData();
for (int i = 0; i < bootCode.Length; i++)
{
if (executionData.ExecutedInstructions.Contains(i))
{
break;
}
string[] data = bootCode[i].Split(' ');
string instruction = data[0];
int value = int.Parse(data[1]);
executionData.ExecutedInstructions.Add(i);
executionData.LastExecutedInstruction = i;
switch (instruction)
{
case ("acc"):
executionData.AccumulatorValue += value;
break;
case ("jmp"):
i += value - 1;
break;
case ("nop"):
break;
}
}
return(executionData);
}
// Part 2
static void FixCorruptedInstructions(string[] bootCode, ExecutionData bootData)
{
foreach (int instructionIndex in bootData.ExecutedInstructions)
{
string[] bootCodeCopy = new string[bootCode.Length];
bootCode.CopyTo(bootCodeCopy, 0);
string[] data = bootCodeCopy[instructionIndex].Split(' ');
string instruction = data[0];
int value = int.Parse(data[1]);
if (instruction == "jmp")
{
bootCodeCopy[instructionIndex] = "nop " + value.ToString();
}
else if (instruction == "nop")
{
bootCodeCopy[instructionIndex] = "jmp " + value.ToString();
}
ExecutionData executionData = ExecuteBootCode(bootCodeCopy);
if (executionData.LastExecutedInstruction == bootCode.Length - 1)
{
Console.WriteLine($"Accumulator value after fix: {executionData.AccumulatorValue}");
break;
}
}
}
static void Main(string[] args)
{
string[] bootCode = File.ReadAllLines("../../../boot_code.txt");
ExecutionData bootData = ExecuteBootCode(bootCode);
Console.WriteLine($"Accumulator Value: {bootData.AccumulatorValue}");
FixCorruptedInstructions(bootCode, bootData);
}
