static void Main(string[] args)
{
var list = new List <long>()
{
1, 5, 5, 25, 125
};
long r = 5;
long result = TripletsHelper.countTriplets(list, r);
}
public void MassiveTest()
{
var list = new List <long>();
for (int i = 0; i < 100000; i++)
{
list.Add(1237);
}
long r = 1;
long result = TripletsHelper.countTriplets(list, r);
Assert.Equal(166661666700000, result);
}
public void VerifyTripletsCounting()
{
var list = new List <long>()
{
1, 5, 5, 25, 125
};
long r = 5;
long result = TripletsHelper.countTriplets(list, r);
Assert.Equal(4, result);
r = 3;
list = new List <long>()
{
1, 3, 9, 9, 27, 81
};
result = TripletsHelper.countTriplets(list, r);
Assert.Equal(6, result);
}