private static void Part1()
{
var sequence = new int[]
{
1, 0, 0, 3, 1, 1, 2, 3, 1, 3, 4, 3, 1, 5, 0, 3, 2, 6, 1, 19, 2, 19, 13, 23, 1, 23, 10, 27, 1, 13, 27,
31, 2, 31, 10, 35, 1, 35, 9, 39, 1, 39, 13, 43, 1, 13, 43, 47, 1, 47, 13, 51, 1, 13, 51, 55, 1, 5, 55,
59, 2, 10, 59, 63, 1, 9, 63, 67, 1, 6, 67, 71, 2, 71, 13, 75, 2, 75, 13, 79, 1, 79, 9, 83, 2, 83, 10,
87, 1, 9, 87, 91, 1, 6, 91, 95, 1, 95, 10, 99, 1, 99, 13, 103, 1, 13, 103, 107, 2, 13, 107, 111, 1, 111,
9, 115, 2, 115, 10, 119, 1, 119, 5, 123, 1, 123, 2, 127, 1, 127, 5, 0, 99, 2, 14, 0, 0
};
var gravityAssist = new GravityAssist();
Console.WriteLine("-------1202 program alarm-------");
Console.WriteLine($"Initial state: {string.Join(", ", sequence)}");
sequence[1] = 12;
sequence[2] = 2;
Console.WriteLine();
Console.WriteLine($"State after mutation: {string.Join(", ", sequence)}");
var programAlarmCode = gravityAssist.RestoreGravity(sequence);
Console.WriteLine();
Console.WriteLine($"Final state: {string.Join(", ", programAlarmCode[0])}");
}
private static void InitTest()
{
var gravityAssist = new GravityAssist();
int[] intCodes1 = new int[] { 1, 0, 0, 0, 99 };
int[] intCodes2 = new int[] { 2, 3, 0, 3, 99 };
int[] intCodes3 = new int[] { 2, 4, 4, 5, 99, 0 };
Console.WriteLine("-----------Batch 1-----------");
gravityAssist.RestoreGravity(intCodes1);
Console.WriteLine();
Console.WriteLine("-----------Batch 2-----------");
gravityAssist.RestoreGravity(intCodes2);
Console.WriteLine();
Console.WriteLine("-----------Batch 3-----------");
gravityAssist.RestoreGravity(intCodes3);
}
private static void Part2()
{
var gravityAssist = new GravityAssist();
var sequence = new[]
{
1, 0, 0, 3, 1, 1, 2, 3, 1, 3, 4, 3, 1, 5, 0, 3, 2, 6, 1, 19, 2, 19, 13, 23, 1, 23, 10, 27, 1, 13, 27,
31, 2, 31, 10, 35, 1, 35, 9, 39, 1, 39, 13, 43, 1, 13, 43, 47, 1, 47, 13, 51, 1, 13, 51, 55, 1, 5, 55,
59, 2, 10, 59, 63, 1, 9, 63, 67, 1, 6, 67, 71, 2, 71, 13, 75, 2, 75, 13, 79, 1, 79, 9, 83, 2, 83, 10,
87, 1, 9, 87, 91, 1, 6, 91, 95, 1, 95, 10, 99, 1, 99, 13, 103, 1, 13, 103, 107, 2, 13, 107, 111, 1, 111,
9, 115, 2, 115, 10, 119, 1, 119, 5, 123, 1, 123, 2, 127, 1, 127, 5, 0, 99, 2, 14, 0, 0
};
for (var noun = 0; noun <= 99; noun++)
{
for (var verb = 0; verb <= 99; verb++)
{
int[] instructions = new int[sequence.Length];
Array.Copy(sequence, instructions, sequence.Length);
instructions[1] = noun;
instructions[2] = verb;
var gravityCoordinates = gravityAssist.RestoreGravity(instructions);
//Find the input noun and verb that cause the program to produce the output 19690720.
//What is 100 * noun + verb?
//(For example, if noun=12 and verb=2, the answer would be 1202.)
if (gravityCoordinates[0] == 19690720)
{
Console.WriteLine($"Noun: {noun} and verb: {verb}");
Console.WriteLine();
Console.WriteLine($"Final answer is: {100 * noun + verb}");
break;
}
}
}
}