56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
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<Query Kind="Program" />
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class Marble { public Marble Prev, Next; public int Value; }
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void Main()
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{
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var input = File.ReadAllText(Path.Combine(Path.GetDirectoryName(Util.CurrentQueryPath), @"09_input.txt"));
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var players = int.Parse(input.Split(' ')[0]);
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var marbles = int.Parse(input.Split(' ')[6]) * 100;
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List<int> board = new List<int> { 0 };
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long[] score = new long[players];
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Marble curr = new Marble();
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curr.Next = curr;
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curr.Prev = curr;
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int currplayer = 0;
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Marble old = null;
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for (int m = 1; m <= marbles; m++)
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{
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if (m % 23 != 0)
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{
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curr = curr.Next;
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var nm = old ?? new Marble();
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old=null;
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nm.Prev=curr;
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nm.Next=curr.Next;
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nm.Value=m;
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curr.Next.Prev = nm;
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curr.Next = nm;
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curr = curr.Next;
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}
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else
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{
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score[currplayer] += m;
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curr = curr.Prev.Prev.Prev.Prev.Prev.Prev;
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score[currplayer] += curr.Prev.Value;
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old = curr.Prev;
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var c = old.Prev;
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c.Next = curr;
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curr.Prev=c;
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}
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//($"[{currplayer+1:0}]" + string.Join(" ", board.Select((b, i) => i == curr ? $"({b:00})" : $" {b:00} "))).Dump();
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currplayer = (currplayer + 1) % players;
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Util.Progress = (m * 100) / marbles;
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}
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score.Max().Dump();
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}
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