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TeMePyT

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May 26th, 2018
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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. namespace _12_masterNumbers
  5. {
  6. class Program
  7. {
  8. static void Main(string[] args)
  9. {
  10. int endNumber = int.Parse(Console.ReadLine());
  11. for (int i = 1; i <= endNumber; i++)
  12. {
  13. if (IsSymetric(i.ToString()) && DividesBy7(i) && EvenIsPresent(i))
  14. {
  15. Console.WriteLine(i);
  16. }
  17. }
  18. }
  19.  
  20. static bool IsSymetric(string endNumber)
  21. {
  22. int length = endNumber.Length;
  23. for (int i = 0; i < length / 2; i++)
  24. {
  25. if (endNumber[i] != endNumber[length - i - 1])
  26. return false;
  27. }
  28. return true;
  29. }
  30.  
  31. static bool DividesBy7(int endNumber)
  32. {
  33. bool dividesBy7 = false;
  34. int sum = 0; int digit = 0;
  35. int num = endNumber;
  36. while (num != 0)
  37. {
  38. digit = num % 10;
  39. num = num / 10;
  40. sum += digit;
  41. }
  42. if (sum % 7 == 0)
  43. {
  44. dividesBy7 = true;
  45. }
  46. return dividesBy7;
  47. }
  48. static bool EvenIsPresent(int endNumber)
  49. {
  50. bool evenNum = false;
  51. int digit = 0;
  52. int num = endNumber;
  53. while (num != 0)
  54. {
  55. digit = num % 10;
  56. num = num / 10;
  57. if (digit % 2 == 0)
  58. {
  59. evenNum = true;
  60. }
  61. }
  62. return evenNum;
  63. }
  64. }
  65. }
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