Едно решение на C#, с англйските думи:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConvertNumbersToText
{
class ConvertNumbersToText
{
static void Main(string[] args)
{
Console.Write("Enter number of range <0-999>: ");
int number = Int32.Parse(Console.ReadLine());
if (number == 0)
{
Console.WriteLine("Zero");
}
else if (number < 10)
{
Console.WriteLine(ConvertUnitsToText(number));
}
else if (number >= 10 && number <= 19)
{
Console.WriteLine(ConvertTeensToText(number));
}
else if (number >= 20 && number <= 99)
{
Console.WriteLine(ConvertDecimalsToText(number));
}
else if (number >= 100 && number <= 999)
{
Console.WriteLine(ConvertHundretsToText(number));
}
else
{
Console.WriteLine("Incorrect number!");
}
}
static string ConvertUnitsToText(int unit)
{
string[] ones = new string[]
{
"", "one", "two", "three",
"four", "five", "six",
"seven", "eight", "nine"
};
return ones[unit];
}
static string ConvertTeensToText(int teenNumber)
{
string[] teens = new string[]
{
"Ten", "Eleven", "Twelve",
"Thirteen", "Fourteen", "Fifteen",
"Sixteen", "Seventeen", "Eighteen", "Nineteen"
};
return teens[teenNumber - 10];
}
static string ConvertDecimalsToText(int decimals)
{
string[] tens = new string[]
{
"", "", "twenty ", "thirty ", "fourty ",
"fifty ", "sixty ", "seventy ",
"eighty ", "nintey "
};
int units = decimals % 10;
int decimalNumber = (decimals / 10);
return tens[decimalNumber] + ConvertUnitsToText(units);
}
static string ConvertHundretsToText(int number)
{
string[] hundreds = new string[]
{
"", "one hundred ", "two hundred ", "three hundred ",
"four hundred ", "five hundred ", "six hundred ",
"seven hundred ", "eight hundred ", "nine hundred "
};
int units = number % 10;
int decimals = (number / 10) % 10;
int hundredsNumber = (number / 100) % 10;
string decimalNumber = "" + decimals + "" + units;
int castDecimalNumber = Int32.Parse(decimalNumber);
string result = "";
if(castDecimalNumber <= 9)
{
result = hundreds[hundredsNumber] + "and " +
ConvertUnitsToText(units);
}
else if (castDecimalNumber >= 10 && castDecimalNumber <= 19)
{
result = hundreds[hundredsNumber] + "and " +
ConvertTeensToText(castDecimalNumber);
}
else
{
result = hundreds[hundredsNumber] +
ConvertDecimalsToText(castDecimalNumber);
}
return result;
}
}
}
