/// <summary>
/// Calculates GCD of values by specified algorithm
/// </summary>
/// <param name="algorithm">delegate to method represented the algorithm</param>
/// <param name="values"></param>
/// <returns>GCD of values</returns>
public static int Gcd(GcdAlgorithm algorithm, params int[] values)
{
if (algorithm == null)
{
throw new ArgumentNullException(nameof(algorithm));
}
if (values.Length == 0)
{
throw new ArgumentException("Array is empty");
}
int gcd = values[0];
for (int i = 1; i < values.Length; i++)
{
gcd = algorithm(values[i], gcd);
if (gcd == 1)
{
return(gcd);
}
}
return(gcd);
}
public int TestGcdWithTime(GcdAlgorithm algorithm, int a, int b)
{
ReturnGcdAndCalutationTime result = GcdCalculator.GcdWithTimeCalculation(algorithm, a, b);
Debug.WriteLine($"Algorithm {algorithm.Method.Name} with parameters {a} and {b} calculates during {result.Time.Ticks} ticks");
return(result.Gcd);
}
/// <summary>
/// Calculates GCD of two values by specified algorithm
/// </summary>
/// <param name="algorithm">delegate to method represented the algorithm</param>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>GCD of values</returns>
public static int Gcd(GcdAlgorithm algorithm, int a, int b)
{
if (algorithm == null)
{
throw new ArgumentNullException(nameof(algorithm));
}
return(algorithm(a, b));
}
/// <summary>
/// Calculates GCD of values by specified algorithm
/// </summary>
/// <param name="algorithm">delegate to method represented the algorithm</param>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>struct <see cref="ReturnGcdAndCalutationTime"/></returns>
public static ReturnGcdAndCalutationTime GcdWithTimeCalculation(GcdAlgorithm algorithm, int a, int b)
{
if (algorithm == null)
{
throw new ArgumentNullException(nameof(algorithm));
}
ReturnGcdAndCalutationTime result = new ReturnGcdAndCalutationTime();
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
result.Gcd = algorithm(a, b);
stopWatch.Stop();
result.Time = stopWatch.Elapsed;
return(result);
}
private static (int gcd, long runTime) ProcessArray(int[] numbers, GcdAlgorithm algorithmType)
{
if (numbers.Length < 1)
{
throw new ArgumentException();
}
Stopwatch sw = Stopwatch.StartNew();
long startTime = sw.ElapsedMilliseconds;
int gcd = Math.Abs(numbers[0]);
for (int i = 1; i <= numbers.Length - 1; i++)
{
gcd = algorithmType.Invoke(Math.Abs(numbers[i]), gcd);
}
return(gcd, sw.ElapsedMilliseconds - startTime);
}
public ActionResult Algorithm(int[] numbers, string algorithmType)
{
var gcdAlgorithm = new GcdAlgorithm
{
Name = algorithmType
};
try
{
gcdAlgorithm.Gcd = GetGcd(numbers, algorithmType);
}
catch (ArgumentException)
{
return(RedirectToAction("CalculationError"));
}
gcdAlgorithm.InputNumbers = numbers;
return(View(gcdAlgorithm));
}
public void TestGcdParamsThrows(GcdAlgorithm algorithm, int[] values)
{
Assert.That(() => GcdCalculator.Gcd(algorithm, values), Throws.TypeOf <ArgumentNullException>());
}
public int TestGcdParams(GcdAlgorithm algorithm, int[] values)
{
return(GcdCalculator.Gcd(algorithm, values));
}
public void TestGcdWithTimeThrows(GcdAlgorithm algorithm, int a, int b)
{
Assert.That(() => GcdCalculator.GcdWithTimeCalculation(algorithm, a, b), Throws.TypeOf <ArgumentNullException>());
}
public void EuclidTest()
{
int m = 60, n = 24;
Assert.Equal(12, GcdAlgorithm.Euclid(m, n));
}
