public void GetSum_Returns_Sum_of_Two_Numbers()
{
var number1 = 64;
var number2 = 25;
LargeNumberMath.GetSum(number1.ToString(), number2.ToString())
.Should().Be((number1 + number2).ToString());
}
/// <summary>
/// Run solution for problem 48.
/// </summary>
/// <param name="rangeThreshold">Range threshold.</param>
/// <returns>
/// Last 10 digits of the sum of the series up to <paramref name="rangeThreshold"/> of self
/// powers.
/// </returns>
public static string Run(int rangeThreshold)
{
var sum = "0";
for (var i = 1; i <= rangeThreshold; i += 1)
{
sum = LargeNumberMath.GetSum(sum, new Exponent(i, i).ToInt());
}
return(sum[^ 10..]);
