static void Main()
{
int number;
Console.WriteLine("Available Euler's Problems:\n" +
"1. Multiples of 3 and 5\n" +
"2. Even Fibonacci numbers\n" +
"3. Largest prime factor\n" +
"4. Largest palindrome product\n" +
"5. Smallest multiple\n" +
"6. Sum square difference\n" +
"7. 10001st prime\n" +
"8. Largest product in series\n" +
"9. Special Pythagorean triplet\n" +
"10. Summation of primes\n" +
"11. Largest product in a grid\n" +
"12. Highly divisible triangular number\n" +
"13. Large sum\n" +
"14. Longest Collatz sequence\n" +
"15. Lattice paths\n" +
"16. Power digit sum");
Console.WriteLine("Please, choose the number of Euler's Problem: ");
try {
number = Convert.ToInt32(Console.ReadLine());
}
catch (FormatException) {
Console.WriteLine("It wasn't a number");
return;
}
if (number == 1)
{
Euler1.Calculate();
}
else if (number == 2)
{
Euler2.Calculate();
}
else if (number == 3)
{
Euler3.Calculate();
}
else if (number == 4)
{
Euler4.Calculate();
}
else if (number == 5)
{
Euler5.Calculate();
}
else if (number == 6)
{
Euler6.Calculate();
}
else if (number == 7)
{
Euler7.Calculate();
}
else if (number == 8)
{
Euler8.Calculate();
}
else if (number == 9)
{
Euler9.Calculate();
}
else if (number == 10)
{
Euler10.Calculate();
}
else if (number == 11)
{
Euler11.Calculate();
}
else if (number == 12)
{
Euler12.Calculate();
}
else if (number == 13)
{
Euler13.Calculate();
}
else if (number == 14)
{
Euler14.Calculate();
}
else if (number == 15)
{
Euler15.Calculate();
}
else if (number == 16)
{
Euler16.Calculate();
}
else
{
Console.WriteLine("This number isn't avaible");
}
}
static void Main(string[] args)
{
int euler;
etykieta:
Console.WriteLine("With Euler do you want to run? \nEnter number from 1 to 13. Type 0 to end.");
string temp = Console.ReadLine();
bool check = Int32.TryParse(temp, out euler);
switch (euler)
{
case 0:
break;
case 1:
Euler1.Calculate();
goto etykieta;
case 2:
Euler2.Calculate();
goto etykieta;
case 3:
Euler3.Calculate();
goto etykieta;
case 4:
Euler4.Calculate();
goto etykieta;
case 5:
Euler5.Calculate();
goto etykieta;
case 6:
Euler6.Calculate();
goto etykieta;
case 7:
Euler7.Calculate();
goto etykieta;
case 8:
Euler8.Calculate();
goto etykieta;
case 9:
Euler9.Calculate();
goto etykieta;
case 10:
Euler10_2.Calculate();
goto etykieta;
case 11:
Euler11.Calculate();
goto etykieta;
case 12:
Euler12_2.Calculate();
goto etykieta;
case 13:
Euler13.Calculate();
goto etykieta;
default:
Console.WriteLine("You have entered wrong number.");
goto etykieta;
}
}