46 lines
988 B
C#
46 lines
988 B
C#
namespace AOC2019;
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public sealed class Day19() : Day(2019, 19, "Tractor Beam")
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{
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private long[,]? _grid;
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private IntCodeVM? _vm;
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public override void ProcessInput()
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{
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_vm = new(Input.First());
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_grid = new long[50, 50];
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}
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public override object Part1()
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{
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for (var x = 0; x < 50; x++)
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for (var y = 0; y < 50; y++)
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{
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_vm!.Reset();
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_vm.Run(x, y);
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_grid![x, y] = _vm.Result;
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}
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return _grid!.Cast<long>().Sum();
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}
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public override object Part2()
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{
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for (int x = 101, y = 0; ; x++)
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{
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while (true)
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{
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_vm!.Reset();
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_vm.Run(x, y);
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if (_vm.Result == 1) break;
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y++;
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}
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_vm.Reset();
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_vm.Run(x - 99, y + 99);
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if (_vm.Result == 1)
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return (x - 99) * 1e4 + y;
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}
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}
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}
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