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Dec 13th, 2017
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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Threading.Tasks;
  6.  
  7. namespace ConsoleApp16
  8. {
  9. class Program
  10. {
  11. static void Main(string[] args)
  12. {
  13.  
  14. Console.WriteLine("inserire il range nel quale cercare ( da 1 a 100 )");
  15.  
  16. int range;
  17. bool ok;
  18. do
  19. {
  20. ok = int.TryParse(Console.ReadLine(), out range);
  21. }
  22. while (!ok || range < 1 || range > 100);
  23.  
  24. int[] vettoreNumeriInRange = new int[range];
  25.  
  26. for (int i = 1; i <= range-1; i++)
  27. {
  28. vettoreNumeriInRange[i] = i+1;
  29. for (int j = 2; j < i; j++)
  30. {
  31. if (vettoreNumeriInRange[i] % vettoreNumeriInRange[j] == 0)
  32. {
  33. vettoreNumeriInRange[i] = 0;
  34. }
  35. }
  36. }
  37.  
  38. for (int i = 0; i < range-1; i++)
  39. {
  40. if(vettoreNumeriInRange[i] != 0)
  41. {
  42. Console.WriteLine("{0} ;", vettoreNumeriInRange[i]);
  43. }
  44.  
  45. }
  46.  
  47.  
  48. }
  49. }
  50. }
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