27 lines
700 B
Plaintext
27 lines
700 B
Plaintext
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<Query Kind="Statements" />
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var input = int.Parse(File.ReadAllText(Path.Combine(Path.GetDirectoryName(Util.CurrentQueryPath), @"14_input.txt")));
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var board = new List<int>(input);
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board.Add(3);
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board.Add(7);
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int elf1 = 0;
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int elf2 = 1;
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for(int gen=0;;gen++)
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{
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var sum1=board[elf1]+board[elf2];
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if (sum1>=10)board.Add(1); board.Add(sum1%10);
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elf1 = (elf1 + 1 + board[elf1]) % board.Count;
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elf2 = (elf2 + 1 + board[elf2]) % board.Count;
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//board.Select((p, i) => (i == elf1) ? $"({p})" : ((i == elf2) ? $"[{p}]" : $" {p} ")).Aggregate((a,b)=>a+" "+b).Dump();
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if (board.Count >= input+10)
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{
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board.Skip(input).Take(10).Select(p=>p.ToString()).Aggregate((a,b)=>a+b).Dump();
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return;
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}
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}
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