21 lines
560 B
Plaintext
21 lines
560 B
Plaintext
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<Query Kind="Program" />
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public int serial_num;
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void Main()
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{
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serial_num = int.Parse(File.ReadAllText(Path.Combine(Path.GetDirectoryName(Util.CurrentQueryPath), @"11_input.txt")));
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Enumerable
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.Range(1, 300-3)
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.SelectMany(x => Enumerable.Range(1, 300-3).Select(y => new {X=x, Y=y, Pow=SPow(x, y) }))
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.OrderByDescending(p => p.Pow)
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.Select(p => $"{p.X},{p.Y}")
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.First()
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.Dump();
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}
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int Pow(int x, int y) => (((x + 10) * ((x + 10) * y + serial_num) / 100) % 10) - 5;
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int SPow(int x, int y) => Enumerable.Range(0, 9).Sum(v => Pow(x+v%3, y+v/3));
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