TeMePyT

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May 31st, 2018
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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Dynamic;
  4. using System.Linq;
  5. using System.Text;
  6. using System.Threading.Tasks;
  7.  
  8. namespace Problem_7.Inventory_Matcher
  9. {
  10. class Program
  11. {
  12. static void Main(string[] args)
  13. {
  14. long[] arr = Console.ReadLine().Split(' ').Select(long.Parse).ToArray();
  15. int number = int.Parse(Console.ReadLine());
  16. bool isInList = Array.IndexOf(arr, number) != -1;
  17. if (isInList)
  18. {
  19. int lastIndex = Array.LastIndexOf(arr, number);
  20. long sum = arr.Take(lastIndex).Sum();
  21. Console.WriteLine(sum);
  22. }
  23. else
  24. {
  25. Console.WriteLine("No occurrences were found!");
  26. }
  27. }
  28. }
  29. }
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