internal static bool?SearchInArray(int?num)
{
if (num == null)
{
return(null);
}
var flag = false;
var arr = Task1.SortArray(Checkers.ArrayChecker());
Console.WriteLine("Sorting completed!\nSorted array:");
foreach (var i in arr)
{
Console.Write(i + " ");
}
if (Checkers.CheckUnique(arr))
{
foreach (int x in arr)
{
if (x == num)
{
flag = true;
}
}
return(flag);
}
else
{
Console.WriteLine("\nError: Array elements are not unique");
return(null);
}
}
static void Main(string[] args)
{
Console.WriteLine("Test tasks for Profsoft:");
int select;
do
{
Console.Clear();
Console.WriteLine("Select the number of a task:");
Console.WriteLine("1. Task #1.");
Console.WriteLine("2. Task #2.");
Console.WriteLine("3. Task #3.");
Console.WriteLine("4. Task #4.");
Console.WriteLine("5. Task #5.");
Console.WriteLine("0. Exit.");
if (int.TryParse(Console.ReadLine(), out select))
{
switch (select)
{
case 1:
Console.Clear();
Console.WriteLine("Task #1:");
string str = null;
foreach (var i in Task1.SortArray(Checkers.ArrayChecker()))
{
str += i + " ";
}
Console.WriteLine($"Sorting completed!\nSorted array: {str}");
Console.ReadKey();
break;
case 2:
Console.Clear();
Console.WriteLine("Task #2:");
var res = Task2.SearchInArray(Checkers.CheckNumber());
if (res != null)
{
Console.WriteLine($"\nThe number is in the array: {res}");
}
Console.ReadKey();
break;
case 3:
Console.Clear();
Console.WriteLine("Task #3:");
var coordinates = Checkers.CoordinatesChecker();
Console.WriteLine($"Gets into:{Task3.CheckCoordinates(coordinates[0], coordinates[1])}");
Console.ReadKey();
break;
case 4:
Console.Clear();
Console.WriteLine("Task #4:");
Console.WriteLine($"Sum: {Task4.SumOfNumbers()}");
Console.ReadKey();
break;
case 5:
Console.Clear();
Console.WriteLine("Task #5:");
Console.WriteLine("Warning: All elements, except one, occur exactly two times.");
Console.WriteLine($"Unique element: {Task5.FindUnique(Checkers.ArrayChecker())}");
Console.ReadKey();
break;
case 0:
break;
default:
Console.WriteLine("Wrong number!");
Console.ReadKey();
break;
}
}
else
{
select = -1;
Console.WriteLine("Invalid input!");
Console.ReadKey();
}
}while (select != 0);
}