static void Main()
{
RemoveDigits sln = new RemoveDigits();
string a = "10200";
int digits = 1;
string answer = sln.RemoveKDigits(a, digits);
System.Console.WriteLine(answer);
}
public void removeDigitsTest()
{
var r = new RemoveDigits();
Assert.IsTrue(new long[] { 15, 52 }.SequenceEqual(r.removeDigits(15243, 2)));
Assert.IsTrue(new long[] { 1, 3 }.SequenceEqual(r.removeDigits(123, 1)));
Assert.IsTrue(new long[] { 9, 9 }.SequenceEqual(r.removeDigits(99, 1)));
Assert.IsTrue(new long[] { 0, 1 }.SequenceEqual(r.removeDigits(10, 1)));
Assert.IsTrue(new long[] { 33, 33 }.SequenceEqual(r.removeDigits(3333, 2)));
Assert.IsTrue(new long[] { 391, 9193 }.SequenceEqual(r.removeDigits(10391938, 4)));
Assert.IsTrue(new long[] { 38, 103 }.SequenceEqual(r.removeDigits(1038, 3)));
}
