static void Main(string[] args)
{
DifferentTasks.RunMutuallySimpleNumber();
DifferentTasks.RunPerfectNumbersOnALine();
DifferentTasks.RunTranslationOfNumberSystems();
DifferentTasks.RunFactorialNumbersAsTheProductOfThreeConsecutivePrimes();
StringTasks.RunSortText();
ArraysTasks.RunSummaTwoSmallestAndTwoLargestElementArray();
ArraysTasks.RunMaximumDoesNotDecreaseSequence();
// Console.WriteLine("A=" + (int)'А' +"; a=" + (int)'а'+ "; Я=" + (int)'Я' + "; я=" + (int)'я' + ";");
// WorkWithTheConsole.
}
// алгоритм поиска совершенных чисел
internal static string PerfectNumberToFind(int startLine, int finishLine)
{
perfectNumber = "";
int number;
int summa;
bool flag = false;
StringTasks.SwapIntAndInt(ref startLine, ref finishLine);
for (number = startLine; number < finishLine; number++)
{
summa = 0;
if (number % 2 == 0)
{
for (int index = 1; index <= number / 2; index++)
{
if (number % index == 0)
{
summa = summa + index;
if (index == number / 2 && number == summa)
{
perfectNumber += " " + number;
flag = true;
}
}
}
}
else
{
continue;
}
}
OutputPerfectNumbers(perfectNumber, flag);
if (flag)
{
return("Perfect number: " + perfectNumber);
}
else
{
return("No perfect numbers");
}
}