Set puzzle: Difference between revisions
Added C#
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[purple three squiggle solid] : 11
</pre>
=={{header|C sharp}}==
{{works with|C sharp|8}}
<lang csharp>using System;
using System.Collections.Generic;
using static System.Linq.Enumerable;
public static class SetPuzzle
{
static readonly Feature[] numbers = { (1, "One"), (2, "Two"), (3, "Three") };
static readonly Feature[] colors = { (1, "Red"), (2, "Green"), (3, "Purple") };
static readonly Feature[] shadings = { (1, "Open"), (2, "Striped"), (3, "Solid") };
static readonly Feature[] symbols = { (1, "Oval"), (2, "Squiggle"), (3, "Diamond") };
private readonly struct Feature
{
public Feature(int value, string name) => (Value, Name) = (value, name);
public int Value { get; }
public string Name { get; }
public static implicit operator int(Feature f) => f.Value;
public static implicit operator Feature((int value, string name) t) => new Feature(t.value, t.name);
public override string ToString() => Name;
}
private readonly struct Card : IEquatable<Card>
{
public Card(Feature number, Feature color, Feature shading, Feature symbol) =>
(Number, Color, Shading, Symbol) = (number, color, shading, symbol);
public Feature Number { get; }
public Feature Color { get; }
public Feature Shading { get; }
public Feature Symbol { get; }
public override string ToString() => $"{Number} {Color} {Shading} {Symbol}(s)";
public bool Equals(Card other) => Number == other.Number && Color == other.Color && Shading == other.Shading && Symbol == other.Symbol;
}
public static void Main() {
Card[] deck = (
from number in numbers
from color in colors
from shading in shadings
from symbol in symbols
select new Card(number, color, shading, symbol)
).ToArray();
var random = new Random();
Deal(deck, 9, 4, random);
Console.WriteLine();
Console.WriteLine();
Deal(deck, 12, 6, random);
}
static void Deal(Card[] deck, int size, int target, Random random) {
List<(Card a, Card b, Card c)> sets;
do {
Shuffle(deck, random.Next);
sets = (
from i in 0.To(size - 2)
from j in (i + 1).To(size - 1)
from k in (j + 1).To(size)
select (deck[i], deck[j], deck[k])
).Where(IsSet).ToList();
} while (sets.Count != target);
Console.WriteLine("The board:");
foreach (Card card in deck.Take(size)) Console.WriteLine(card);
Console.WriteLine();
Console.WriteLine("Sets:");
foreach (var s in sets) Console.WriteLine(s);
}
static void Shuffle<T>(T[] array, Func<int, int, int> rng) {
for (int i = 0; i < array.Length; i++) {
int r = rng(i, array.Length);
(array[r], array[i]) = (array[i], array[r]);
}
}
static bool IsSet((Card a, Card b, Card c) t) =>
AreSameOrDifferent(t.a.Number, t.b.Number, t.c.Number) &&
AreSameOrDifferent(t.a.Color, t.b.Color, t.c.Color) &&
AreSameOrDifferent(t.a.Shading, t.b.Shading, t.c.Shading) &&
AreSameOrDifferent(t.a.Symbol, t.b.Symbol, t.c.Symbol);
static bool AreSameOrDifferent(int a, int b, int c) => (a + b + c) % 3 == 0;
static IEnumerable<int> To(this int start, int end) => Range(start, end - start - 1);
}</lang>
{{out}}
<pre style="height:30ex;overflow:scroll">
The board:
Two Green Open Oval(s)
Three Green Open Diamond(s)
Two Red Open Oval(s)
One Purple Solid Oval(s)
Two Green Striped Squiggle(s)
Two Purple Open Oval(s)
Two Red Striped Squiggle(s)
Two Purple Solid Diamond(s)
Three Green Solid Diamond(s)
Sets:
(Two Green Open Oval(s), Two Red Open Oval(s), Two Purple Open Oval(s))
(Two Green Open Oval(s), Two Red Striped Squiggle(s), Two Purple Solid Diamond(s))
(Three Green Open Diamond(s), One Purple Solid Oval(s), Two Red Striped Squiggle(s))
(Two Red Open Oval(s), Two Green Striped Squiggle(s), Two Purple Solid Diamond(s))
The board:
One Purple Open Squiggle(s)
One Red Striped Diamond(s)
One Purple Solid Oval(s)
Three Purple Striped Squiggle(s)
Three Green Open Oval(s)
Two Purple Solid Squiggle(s)
One Red Open Diamond(s)
Two Purple Open Diamond(s)
Three Red Solid Diamond(s)
One Green Open Oval(s)
One Purple Solid Squiggle(s)
One Purple Solid Diamond(s)
Sets:
(One Purple Open Squiggle(s), Three Purple Striped Squiggle(s), Two Purple Solid Squiggle(s))
(One Purple Open Squiggle(s), One Red Open Diamond(s), One Green Open Oval(s))
(One Red Striped Diamond(s), Three Green Open Oval(s), Two Purple Solid Squiggle(s))
(One Red Striped Diamond(s), One Green Open Oval(s), One Purple Solid Squiggle(s))
(One Purple Solid Oval(s), Three Purple Striped Squiggle(s), Two Purple Open Diamond(s))
(Three Purple Striped Squiggle(s), Three Green Open Oval(s), Three Red Solid Diamond(s))</pre>
=={{header|Ceylon}}==
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