37 lines
1017 B
C#
37 lines
1017 B
C#
namespace AOC2019;
|
|
|
|
public sealed class Day08 : Day
|
|
{
|
|
private List<List<char>>? _photo;
|
|
|
|
public Day08() : base(2019, 8, "Space Image Format")
|
|
{
|
|
}
|
|
|
|
public override void ProcessInput()
|
|
{
|
|
_photo = Input.First().Chunk(25 * 6).Select(s => s.ToList()).ToList();
|
|
}
|
|
|
|
public override object Part1()
|
|
{
|
|
var l = _photo!.OrderBy(layer => layer.Count(pixel => pixel == '0')).First();
|
|
return l.Count(p => p == '1') * l.Count(p => p == '2');
|
|
}
|
|
|
|
public override object Part2()
|
|
{
|
|
return Enumerable.Range(0, 25 * 6)
|
|
.Select(p => Enumerable.Range(0, _photo!.Count)
|
|
.Select(l => _photo[l][p])
|
|
.Aggregate('2', (acc, next) =>
|
|
acc != '2' ? acc : next == '0' ? ' ' : next
|
|
)
|
|
)
|
|
.ToDelimitedString()
|
|
.Chunk(25)
|
|
.Select(s => new string(s).Trim())
|
|
.ToDelimitedString(Environment.NewLine)
|
|
.Replace('1', 'x');
|
|
}
|
|
} |