Sha256: d806124cd03b95eff558b013e18ee793d5780301cf8f631867a78b1f4a55d81c
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Versions: 396
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Stored size: 1.22 KB
Contents
using System;
using System.Collections.Generic;
public class Triplet
{
private readonly int a;
private readonly int b;
private readonly int c;
public Triplet(int a, int b, int c)
{
this.a = a;
this.b = b;
this.c = c;
}
public int Sum()
{
return a + b + c;
}
public int Product()
{
return a * b * c;
}
public bool IsPythagorean()
{
return Math.Pow(a, 2) + Math.Pow(b, 2) == Math.Pow(c, 2);
}
public static IEnumerable<Triplet> Where(int maxFactor, int minFactor = 1, int sum = 0)
{
var triplets = new List<Triplet>();
for (int i = minFactor; i < maxFactor - 1; i++)
{
for (int j = i + 1; j < maxFactor; j++)
{
for (int k = j + 1; k <= maxFactor; k++)
{
var triplet = new Triplet(i, j, k);
if (ShouldIncludeTriplet(sum, triplet))
triplets.Add(triplet);
}
}
}
return triplets;
}
private static bool ShouldIncludeTriplet(int sum, Triplet triplet)
{
return triplet.IsPythagorean() && (sum == 0 || triplet.Sum() == sum);
}
}
Version data entries
396 entries across 396 versions & 1 rubygems