public static BigNumber operator *(BigNumber one, BigNumber two)
{
BigNumber firstNumber;
BigNumber secondNumber;
BigNumber resultNumber = new BigNumber();
if (one.Length == 0)
return two;
if (two.Length == 0)
return one;
if (one.Length < two.Length)
{
firstNumber = two;
secondNumber = one;
}
else
{
firstNumber = one;
secondNumber = two;
}
firstNumber.Number.Reverse();
secondNumber.Number.Reverse();
for (int i = 0; i < secondNumber.Length; i++)
{
BigNumber temperNumber = new BigNumber();
for(int j = 0; j < firstNumber.Length; j++)
{
temperNumber.Number.Add((int)firstNumber.Number[j] * (int)secondNumber.Number[i]);
}
for (int k = 0; k < temperNumber.Length; k++)
{
if ((int)temperNumber.Number[k] > 9)
{
int temperValue = (int)temperNumber.Number[k];
temperNumber.Number[k] = (int)temperNumber.Number[k] % 10;
try
{
temperNumber.Number[k + 1] = (int)temperNumber.Number[k + 1] + (temperValue / 10);
}
catch
{
temperNumber.Number.Add(temperValue / 10);
}
}
}
temperNumber.Number.Reverse();
for(int a = 0; a < i; a++)
{
temperNumber.Number.Add(0);
}
resultNumber = resultNumber + temperNumber;
}
return resultNumber;
}
public static void Pow( ref BigNumber bigNumber, uint n)
{
BigNumber temperNumber = new BigNumber();
temperNumber = bigNumber * temperNumber;
for (int i = 0; i < (n - 1); i++)
{
bigNumber = temperNumber * bigNumber;
}
}
static void Main()
{
// Test one///////////////////////////////
Console.WriteLine("сложение 123456789 + 123456789");
int[] sum1 = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
int[] sum2 = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
BigNumber sumOne = new BigNumber(sum1);
BigNumber sumTwo = new BigNumber(sum2);
BigNumber sumThree = sumOne + sumTwo;
sumOne.ShowNumber();
sumTwo.ShowNumber();
sumThree.ShowNumber();
Console.WriteLine();
///////////////////////////////////////////
// Test two///////////////////////////////
Console.WriteLine("умножение 123456789 * 123456789");
int[] mul1 = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
int[] mul2 = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
BigNumber mulOne = new BigNumber(sum1);
BigNumber mulTwo = new BigNumber(sum2);
BigNumber mulThree = sumOne * sumTwo;
mulOne.ShowNumber();
mulTwo.ShowNumber();
mulThree.ShowNumber();
Console.WriteLine();
///////////////////////////////////////////
// Test three///////////////////////////////
Console.WriteLine("возведение 2 в 10 степень");
int[] num = { 2 };
BigNumber numOne = new BigNumber(num);
numOne.ShowNumber();
BigNumber.Pow(ref numOne, 10);
numOne.ShowNumber();
Console.WriteLine();
///////////////////////////////////////////
// Test four///////////////////////////////
Console.WriteLine("возведение 123456789 в 10 степень");
int[] bigNum = { 1,2,3,4,5,6,7,8,9 };
BigNumber bigNumOne = new BigNumber(bigNum);
bigNumOne.ShowNumber();
BigNumber.Pow(ref bigNumOne, 10);
bigNumOne.ShowNumber();
Console.WriteLine();
///////////////////////////////////////////
Console.WriteLine();
}
public static BigNumber operator +(BigNumber one, BigNumber two)
{
BigNumber firstNumber;
BigNumber secondNumber;
if (one.Length == 0)
return two;
if (two.Length == 0)
return one;
BigNumber resultNumber = new BigNumber();
if (one.Length < two.Length)
{
firstNumber = two;
secondNumber = one;
}
else
{
firstNumber = one;
secondNumber = two;
}
firstNumber.Number.Reverse();
secondNumber.Number.Reverse();
for (int i = 0; i < firstNumber.Length; i++)
{
for (; i < secondNumber.Length; i++)
{
resultNumber.Number.Add(((int)firstNumber.Number[i] + (int)secondNumber.Number[i]));
}
if (firstNumber.Length > secondNumber.Length)
resultNumber.Number.Add(firstNumber.Number[i]);
}
firstNumber.Number.Reverse();
secondNumber.Number.Reverse();
for (int i = 0; i < resultNumber.Length; i++)
{
if ((int)resultNumber.Number[i] > 9)
{
resultNumber.Number[i] = (int)resultNumber.Number[i] % 10;
try
{
resultNumber.Number[i + 1] = (int)resultNumber.Number[i + 1] + 1;
}
catch
{
resultNumber.Number.Add(1);
}
}
}
resultNumber.Number.Reverse();
return resultNumber;
}