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  1. using System;
  2. using static System.Console;
  3. using System.Collections;
  4. using System.Collections.Generic;
  5. using System.Text;
  6.  
  7. public class main
  8. {
  9.     static void Main()
  10. 	{
  11. 		int orderAmount = Convert.ToInt32(ReadLine());
  12. 		StringBuilder strBuilder = new StringBuilder();
  13.  
  14. 		List<int> list = new List<int>();
  15. 		Queue<int> que = new Queue<int>();
  16. 		for(int i = 0; i < orderAmount; i++)
  17. 		{
  18. 			string order = ReadLine();
  19. 			switch (order[1])
  20. 			{
  21. 				case 'u':
  22. 					{
  23. 						string[] temp = order.Split();
  24. 						que.Enqueue(Convert.ToInt32(temp[1]));
  25. 						break;
  26. 					}
  27. 				case 'o':
  28. 					{
  29. 						if(que.Count > 0)
  30. 							strBuilder.Append(que.Dequeue() + "\n");
  31. 						else
  32. 							strBuilder.Append("-1\n");
  33. 						break;
  34. 					}
  35. 				case 'i':
  36. 					{
  37. 						strBuilder.Append(que.Count+"\n");
  38. 						break;
  39. 					}
  40. 				case 'm':
  41. 					{
  42. 						if(que.Count == 0)
  43. 							strBuilder.Append("1\n");
  44. 						else
  45. 							strBuilder.Append("0\n");
  46. 						break;
  47. 					}
  48. 				case 'r':
  49. 					{
  50. 						if(que.Count == 0)
  51. 							strBuilder.Append("-1\n");
  52. 						else
  53. 							strBuilder.Append(que.Peek()+"\n");
  54. 						break;
  55. 					}
  56. 				case 'a':
  57. 					{
  58. 						if(que.Count == 0)
  59. 							strBuilder.Append("-1\n");
  60. 						else if(que.Count == 1)
  61. 							strBuilder.Append(que.Peek()+"\n");
  62. 						else
  63. 						{
  64. 							int queCount = que.Count;
  65. 							for(int j = 0; j < que.Count-1; j++)
  66. 								list.Add(que.Dequeue());
  67. 							list.Add(que.Peek());
  68. 							strBuilder.Append(que.Dequeue()+"\n");
  69.  
  70. 							for(int j = 0; j < queCount; j++)
  71. 								que.Enqueue(list[j]);
  72. 						}
  73. 						list.Clear();
  74. 						break;
  75. 					}
  76. 			}
  77. 		}
  78. 		WriteLine(strBuilder.ToString());
  79. 	}
  80. }
Runtime error #stdin #stdout #stderr 0.03s 24236KB
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stdin
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4
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stdout
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Standard output is empty
stderr
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Unhandled Exception:
System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <6649516e5b3542319fb262b421af0adb>:0 
  at main.Main () [0x0020d] in <ec486b05d5904f0188061fefa13769c1>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <6649516e5b3542319fb262b421af0adb>:0 
  at main.Main () [0x0020d] in <ec486b05d5904f0188061fefa13769c1>:0
https://ideone.com/O5YaEi
language:
C# (gmcs 5.20.1)
created:
2 years ago
visibility:
public

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