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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- namespace _15Numbers1To100ToText
- {
- class Numbers1To100ToText
- {
- static void Main(string[] args)
- {
- int num = int.Parse(Console.ReadLine());
- if (num >= 0 && num < 20)
- {
- switch (num)
- {
- case 0: Console.WriteLine("zero"); break;
- case 1: Console.WriteLine("one"); break;
- case 2: Console.WriteLine("two"); break;
- case 3: Console.WriteLine("three"); break;
- case 4: Console.WriteLine("four"); break;
- case 5: Console.WriteLine("five"); break;
- case 6: Console.WriteLine("six"); break;
- case 7: Console.WriteLine("seven"); break;
- case 8: Console.WriteLine("eight"); break;
- case 9: Console.WriteLine("nine"); break;
- case 10: Console.WriteLine("ten"); break;
- case 11: Console.WriteLine("eleven"); break;
- case 12: Console.WriteLine("twelve"); break;
- case 13: Console.WriteLine("thirteen"); break;
- case 14: Console.WriteLine("fourteen"); break;
- case 15: Console.WriteLine("fifteen"); break;
- case 16: Console.WriteLine("sixteen"); break;
- case 17: Console.WriteLine("seventeen"); break;
- case 18: Console.WriteLine("eighteen"); break;
- case 19: Console.WriteLine("nineteen"); break;
- }
- }
- else if (num >= 20 && num < 100)
- {
- int first = num / 10;
- int second = num % 10;
- switch (first)
- {
- case 1: Console.Write("ten"); break;
- case 2: Console.Write("twenty"); break;
- case 3: Console.Write("thirty"); break;
- case 4: Console.Write("fourty"); break;
- case 5: Console.Write("fifty"); break;
- case 6: Console.Write("sixty"); break;
- case 7: Console.Write("seventy"); break;
- case 8: Console.Write("eighty"); break;
- case 9: Console.Write("ninety"); break;
- }
- switch (second)
- {
- case 1: Console.WriteLine(" one"); break;
- case 2: Console.WriteLine(" two"); break;
- case 3: Console.WriteLine(" three"); break;
- case 4: Console.WriteLine(" four"); break;
- case 5: Console.WriteLine(" five"); break;
- case 6: Console.WriteLine(" six"); break;
- case 7: Console.WriteLine(" seven"); break;
- case 8: Console.WriteLine(" eight"); break;
- case 9: Console.WriteLine(" nine"); break;
- default:
- break;
- }
- }
- else if(num == 100)
- {
- Console.WriteLine("one hundred");
- }
- else if(num < 0 || num > 100)
- {
- Console.WriteLine("invalid number");
- }
- }
- }
- }
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