public void sockMerchant_Should_Return_3()
{
var numberOfSocks = 9;
var colorsOfEach = new int[] { 10, 20, 20, 10, 10, 30, 50, 10, 20 };
var expectedResult = 3;
var result = solution.sockMerchant(numberOfSocks, colorsOfEach);
Assert.AreEqual(expectedResult, result);
}