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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- namespace __Ex._367
- {
- class Program
- {
- static void Main(string[] args)
- {
- Console.Write("Enter a number: ");
- int num = int.Parse(Console.ReadLine());
- string convert = NumberToWords(num);
- Console.WriteLine("In words the number {0} is {1}", num, convert);
- }
- public static string NumberToWords(int number)
- {
- if (number == 0)
- return "zero";
- if (number < 0)
- return "- " + NumberToWords(Math.Abs(number));
- string words = "";
- if ((number / 1000000) > 0)
- {
- words += NumberToWords(number / 1000000) + " million ";
- number %= 1000000;
- }
- if ((number / 1000) > 0)
- {
- words += NumberToWords(number / 1000) + " thousand ";
- number %= 1000;
- }
- if ((number / 100) > 0)
- {
- words += NumberToWords(number / 100) + " hundred ";
- number %= 100;
- }
- if (number > 0)
- {
- if (words != "")
- words += "and ";
- var unitsMap = new[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
- var tensMap = new[] { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };
- if (number < 20)
- words += unitsMap[number];
- else
- {
- words += tensMap[number / 10];
- if ((number % 10) > 0)
- words += "-" + unitsMap[number % 10];
- }
- }
- return words;
- }
- }
- }
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