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  1. #include<stdio.h>
  2. #define sz 100
  3.  
  4. int arr[sz],last=0;
  5.  
  6. void Enqueue(int val)
  7. {
  8.     if(last>=sz)
  9.         printf("No more space on Queue.\n");
  10.     else
  11.         arr[last++]=val;
  12. }
  13.  
  14. void Dequeue()
  15. {
  16.     if(last<=0)
  17.     {
  18.         printf("Queue is empty\n");
  19.     }
  20.     else
  21.     {
  22.         printf("Removed element: %d\n",arr[0]);
  23.         //Shift All element left
  24.         for(int i=1;i<last;i++)
  25.             arr[i-1]=arr[i];
  26.         last--;
  27.     }
  28. }
  29.  
  30. void printlist()
  31. {
  32.     int i;
  33.     for(i=0;i<last;i++)
  34.         printf("%d ",arr[i]);
  35.     puts("");
  36. }
  37.  
  38. int main()
  39. {
  40.     int num,val;
  41. 	bool getout=false;
  42.  
  43. 	while(true)
  44. 	{
  45. 	    printf("Enter your choice:\n");
  46. 	    printf("1. Enqueue\n2. Dequeue\n3. Exit\n");
  47. 	    scanf("%d",&num);
  48.  
  49. 		switch(num)
  50. 		{
  51.             case 1:
  52.                 scanf("%d",&val);
  53.  
  54.                 Enqueue(val);
  55.  
  56.                 printlist();
  57.                 puts("");
  58.                 break;
  59.             case 2:
  60.                 Dequeue();
  61.  
  62.                 printlist();
  63.                 puts("");
  64.                 break;
  65.             case 3:
  66.                 getout=true;
  67.                 break;
  68. 		}
  69.  
  70.         if(getout==true)
  71.             break;
  72. 	}
  73.  
  74. 	return 0;
  75. }
  76.  
  77.  
Success #stdin #stdout 0s 2900KB
comments (?)
stdin
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1
10
1
20
1 
30
2
2
2
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stdout
copy 
Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
10 

Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
10 20 

Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
10 20 30 

Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
Removed element: 10
20 30 

Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
Removed element: 20
30 

Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
Removed element: 30


Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
Queue is empty


Enter your choice:
1. Enqueue
2. Dequeue
3. Exit
https://ideone.com/jGM7rt
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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