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37 lines
1.5 KiB
37 lines
1.5 KiB
namespace WhiteRabbit
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{
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using System.Collections.Generic;
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using System.Linq;
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internal static class PrecomputedPermutationsGenerator
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{
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private static PermutationsGenerator.Permutation[] Permutations1 { get; } = PermutationsGenerator.HamiltonianPermutations(1).ToArray();
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private static PermutationsGenerator.Permutation[] Permutations2 { get; } = PermutationsGenerator.HamiltonianPermutations(2).ToArray();
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private static PermutationsGenerator.Permutation[] Permutations3 { get; } = PermutationsGenerator.HamiltonianPermutations(3).ToArray();
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private static PermutationsGenerator.Permutation[] Permutations4 { get; } = PermutationsGenerator.HamiltonianPermutations(4).ToArray();
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private static PermutationsGenerator.Permutation[] Permutations5 { get; } = PermutationsGenerator.HamiltonianPermutations(5).ToArray();
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public static IEnumerable<PermutationsGenerator.Permutation> HamiltonianPermutations(int n)
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{
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switch (n)
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{
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case 1:
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return Permutations1;
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case 2:
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return Permutations2;
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case 3:
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return Permutations3;
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case 4:
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return Permutations4;
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case 5:
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return Permutations5;
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default:
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return PermutationsGenerator.HamiltonianPermutations(n);
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}
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}
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}
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}
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