/// <summary>
/// Map function for list
/// </summary>
/// <param name="list"> List for change </param>
/// <param name="function"> Changing function </param>
/// <returns> Changed list </returns>
public static List Map(List list, Func<int, int> function)
{
List newList = new List();
for (int i = 0; i < list.GetLength(); ++i)
newList.Add(function(list.GetElement(i)));
return newList;
}
/// <summary>
/// Filter list function
/// </summary>
/// <param name="list"> List for checking </param>
/// <param name="function"> Function for filter </param>
/// <returns> Filtered list </returns>
public static List Filter(List list, Func<int, bool> function)
{
List newList = new List();
for (int i = 0; i < list.GetLength(); ++i)
if (function(list.GetElement(i)))
newList.Add(list.GetElement(i));
return newList;
}
/// <summary>
/// Fold list function
/// </summary>
/// <param name="list"> List for calculating </param>
/// <param name="startValue"> Start value of calculating </param>
/// <param name="function"> Functiong for calculating </param>
/// <returns> Result of calculating </returns>
public static int Fold(List list, int startValue, Func<int, int, int> function)
{
for (int i = 0; i < list.GetLength(); ++i)
startValue = function(startValue, list.GetElement(i));
return startValue;
}
