public static void Main()
{
var elementsCount = int.Parse(Console.ReadLine());
var combinationLength = int.Parse(Console.ReadLine());
elementsToDisplay = Enumerable.Range(0, elementsCount).Select(x => Console.ReadLine()).ToArray();
var numbers = Enumerable.Range(1, combinationLength).ToArray();
SubsetsStrings.GenerateUniqueCombination(numbers, combinationLength, elementsCount);
}
private static void GenerateUniqueCombination(int[] range, int current, int count)
{
for (int i = 0; i < count; i++)
{
if (current > 1)
{
SubsetsStrings.GenerateUniqueCombination(range, current - 1, count);
}
else
{
if (!SubsetsStrings.HasDuplicateElements(range))
{
SubsetsStrings.PrintElements(range);
}
}
SubsetsStrings.IncrementWithoutDuplicates(range, range.Length - current);
if (!SubsetsStrings.ValueIsInRange(range, range.Length - current, count))
{
range[range.Length - current]--;
break;
}
}
}