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  1. #include<iostream.h>
  2. #include<conio.h>
  3. #define MAX 5;
  4. 	  class cqueue
  5. 	  {
  6. 		   int a[MAX],front,rear;
  7. 		public :
  8. 		   cqueue()
  9. 		   {
  10. 			 front=rear=-1;
  11. 		   }
  12. 		   void insert(int );
  13. 		   int deletion();
  14. 		   void display();
  15. 	  };
  16.  
  17. 	  void cqueue :: insert(int val)
  18. 	  {
  19. 		 if((front==0 && rear==MAX-1) || (rear+1==front))
  20. 			  cout<<" Circular Queue is Full
  21. ";
  22. 		 else
  23. 		 {
  24. 		   if(rear==MAX-1)
  25. 			  rear=0;
  26. 		   else
  27. 			 rear++;
  28. 		   a[rear]=val;
  29. 		 }
  30. 		 if(front==-1)
  31. 		   front=0;
  32. 	  }
  33. 	  int cqueue :: deletion()
  34. 	  {
  35. 		 int k;
  36. 		 if(front==-1)
  37. 			cout<<"Circular Queue is Empty
  38. ";
  39. 		 else
  40. 		 {
  41. 			k=a[front];
  42. 			if(front==rear)
  43. 			   front=rear=-1;
  44. 			else
  45. 			{
  46. 			   if(front==MAX-1)
  47. 				  front=0;
  48. 			   else
  49. 				  front++;
  50. 			}
  51. 		 }
  52. 		 return k;
  53. 	  }
  54. 	  void cqueue :: display()
  55. 	  {
  56. 		  int i;
  57. 		  if(front==-1)
  58. 			 cout<<"Circular Queue is Empty
  59. ";
  60. 		  else
  61. 		  {
  62. 			 if(rear < front)
  63. 			 {
  64. 				for(i=front;i<=MAX-1;i++)
  65. 				   cout<<a[i]<<"   ";
  66. 				for(i=0;i<=rear;i++)
  67. 				   cout<<a[i]<<"   ";
  68. 			 }
  69. 			 else
  70. 			 {
  71. 				for(i=front;i<=rear;i++)
  72. 				   cout<<a[i]<<"   ";
  73. 				cout<<endl;
  74. 			 }
  75. 		  }
  76. 	  }
  77.  
  78. 	  void main()
  79. 	  {
  80. 	clrscr();	 
  81. 		cqueue c1;
  82. 		 int ch,val;
  83. 		 char op;
  84. 		 do
  85. 		 {
  86. 		   clrscr();
  87. 		   cout<<"-----------Menu-------------";
  88. 		   cout<<"\n 1.Insertion \n 2.Deletion \n 3.Display \n4.Exit ";
  89. 		   cout<<"Enter Your Choice <1..4> ?";
  90. 		   cin>>ch;
  91. 		   switch(ch)
  92. 		   {
  93. 			   case 1 : cout<<"Enter Element to Insert ?";
  94. 						cin>>val;
  95. 						c1.insert(val);
  96. 						break;
  97. 			   case 2 : val=c1.deletion();
  98. 						cout<<"Deleted Element :"<<val<<endl;
  99. 						break;
  100. 			   case 3 : c1.display();
  101. 						break;
  102. 			}
  103. 			cout<<"Do you want to continue<Y/N> ?";
  104. 			cin>>op;
  105. 		  }while(op=='Y' || op=='y');
  106. 		   getch();
  107. 		}
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:1:21: fatal error: iostream.h: No such file or directory
 #include<iostream.h>
                     ^
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/xXZ4v1
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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