Logic for custom number system...

I need to create a logic that works for a number system..

means if A=1, B=2, C=3, D=4,E=5, F=6; G=7,H=8,I=9, O=0;

if i give input as A+B, then result should be come as C, not 3,

or if i give F+G then output should be AC;

if any one have some idea about it,, post that..

Try this:

using System;

public static class CustomNumber

{

private static char DigitToSymbol(char digit)

{

if (digit >= 49 && digit <= 57) return (char)(16 + digit);

return 'O';

}

private static char SymbolToDigit(char symbol)

{

if (symbol >= 65 && symbol <= 73) return (char)(symbol - 16);

if (symbol == 'O') return '0';

throw new ArgumentException(symbol + " is not a valid symbol");

}

public static string Calculate(string op)

{

string[] items = op.Split('+');

if (items.Length != 2)

throw new ArgumentException(op + " is not a valid operation");

string operand1 = items[0].Trim();

string operand2 = items[1].Trim();

char[] digits1 = new char[operand1.Length];

char[] digits2 = new char[operand2.Length];

for(int i = 0; i < operand1.Length; i++)

{

digits1[i] = SymbolToDigit(operand1[i]);

}

for(int i = 0; i < operand2.Length; i++)

{

digits2[i] = SymbolToDigit(operand2[i]);

}

int number1 = int.Parse(new string(digits1));

int number2 = int.Parse(new string(digits2));

string sum = (number1 + number2).ToString();

char[] symbols = new char[sum.Length];

for(int i = 0; i < sum.Length; i++)

{

symbols[i] = DigitToSymbol(sum[i]);

}

return new string(symbols);

}

class Program

{

static void Main()

{

string sum = CustomNumber.Calculate("A+B");

Console.WriteLine("A + B = {0}", sum);

sum = CustomNumber.Calculate("F+G");

Console.WriteLine("F + G = {0}", sum);

Console.ReadKey();

}

}

The output is:

A + B = C

F + G = AC

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Mukhtar Ahmad12y ago
thank you....
i will check it.

once again thank you....
Vulpes12y ago
Try this:

using System;

public static class CustomNumber
{
private static char DigitToSymbol(char digit)
{
if (digit >= 49 && digit <= 57) return (char)(16 + digit);
return 'O';
}

private static char SymbolToDigit(char symbol)
{
if (symbol >= 65 && symbol <= 73) return (char)(symbol - 16);
if (symbol == 'O') return '0';
throw new ArgumentException(symbol + " is not a valid symbol");
}

public static string Calculate(string op)
{
string[] items = op.Split('+');
if (items.Length != 2)
throw new ArgumentException(op + " is not a valid operation");
string operand1 = items[0].Trim();
string operand2 = items[1].Trim();
char[] digits1 = new char[operand1.Length];
char[] digits2 = new char[operand2.Length];

for(int i = 0; i < operand1.Length; i++)
{
digits1[i] = SymbolToDigit(operand1[i]);
}

for(int i = 0; i < operand2.Length; i++)
{
digits2[i] = SymbolToDigit(operand2[i]);
}

int number1 = int.Parse(new string(digits1));
int number2 = int.Parse(new string(digits2));
string sum = (number1 + number2).ToString();

char[] symbols = new char[sum.Length];
for(int i = 0; i < sum.Length; i++)
{
symbols[i] = DigitToSymbol(sum[i]);
}

return new string(symbols);
}
}

class Program
{
static void Main()
{
string sum = CustomNumber.Calculate("A+B");
Console.WriteLine("A + B = {0}", sum);
sum = CustomNumber.Calculate("F+G");
Console.WriteLine("F + G = {0}", sum);
Console.ReadKey();
}
}

The output is:

A + B = C
F + G = AC