public long Run(int input)
{
var intcode = new Intcode(_program);
intcode.AddInputs(input);
return(intcode.Execute().First());
}
private IEnumerable <(int, int)> GetBounds(
int maxX = int.MaxValue,
int maxY = int.MaxValue,
int startY = 0)
{
int prevWidth = 0;
int startX = 0;
for (int y = startY; y < maxY; y++)
{
bool isFoundFirst = false;
int first = -1;
bool isReturnedAnswer = false;
for (int x = startX; x < maxX; x++)
{
var ic = new Intcode(_program);
ic.AddInputs(x, y);
var output = (int)ic.Execute().First();
if (!isFoundFirst && output == 1)
{
isFoundFirst = true;
first = x;
startX = x;
if (prevWidth > 0)
{
x += prevWidth - 1;
}
}
else if (!isFoundFirst && x - startX > 10)
{
prevWidth = 0;
yield return(-1, -1);
isReturnedAnswer = true;
break;
}
else if (isFoundFirst && output == 0)
{
prevWidth = x - first - 1;
yield return(first, x - 1);
isReturnedAnswer = true;
break;
}
}
if (!isReturnedAnswer)
{
if (first == -1)
{
prevWidth = 0;
yield return(-1, -1);
}
else
{
prevWidth = maxX - first - 1;
yield return(first, maxX - 1);
}
}
}
}
public long DoCalc(int input)
{
var intcode = new Intcode(_program);
intcode.AddInputs(input);
return(intcode.Execute().Last());
}
public long Execute(int noun, int verb)
{
// This was based on an older version of the Intcode machine. There were no
// I/O opcodes - it was based on direct reads/writes into memory
long[] memory = new long[_programData.Length];
Array.Copy(_programData, memory, _programData.Length);
var intcode = new Intcode(memory);
intcode.Poke(1, noun);
intcode.Poke(2, verb);
// Run to termination
intcode.Execute().LastOrDefault();
return(intcode.Peek(0));
}
public int BlockCountExit()
{
var intcode = new Intcode(_program);
var screen = new Dictionary <(long, long), long>();
using (var enumer = intcode.Execute().GetEnumerator())
{
while (enumer.MoveNext())
{
var x = enumer.Current;
enumer.MoveNext();
var y = enumer.Current;
enumer.MoveNext();
var tile = enumer.Current;
screen[(x, y)] = tile;
public (int, int) TraverseMaze(bool drawMaze = false)
{
var intcode = new Intcode(_program);
var resultDistanceToOx = -1;
var resultMaxDistanceFromOx = -1;
var x = 0;
var y = 0;
var dirIndex = 0;
var map = new Dictionary <(int, int), char>();
var deadEnds = new HashSet <(int, int)>();
var distances = new Dictionary <(int, int), int>();
var currDistance = 0;
map[(0, 0)] = '.';
public long MaxSignalWithFeedback()
{
var max = 0L;
foreach (var perm in Util.Permute(5, 6, 7, 8, 9))
{
int intcodeCount = perm.Length;
Intcode[] intcodes = new Intcode[intcodeCount];
IEnumerator <long>[] icEnums = new IEnumerator <long> [intcodeCount];
for (var x = 0; x < intcodeCount; x++)
{
intcodes[x] = new Intcode(_program);
intcodes[x].AddInputs(perm[x]);
icEnums[x] = intcodes[x].Execute().GetEnumerator();
}
intcodes[0].AddInputs(0);
bool isTerminated = false;
while (!isTerminated)
{
for (var x = 0; x < intcodeCount; x++)
{
var isNext = icEnums[x].MoveNext();
if (!isNext)
{
isTerminated = true;
break;
}
NextIntcode(x).AddInputs(icEnums[x].Current);
}
}
max = Math.Max(max, intcodes[4].LastOutput);
Intcode NextIntcode(int x) => intcodes[(x + 1) % 5];
}
return(max);
}
private IDictionary <(int, int), long> GetPainting(int startColor)
{
var intcode = new Intcode(_program);
var painting = new Dictionary <(int, int), long>();
painting[(0, 0)] = startColor;
