fork download 
  1. #include <stdio.h>
  2.  
  3. #define SIZE 5
  4. int queue[SIZE];
  5. int head,tail;
  6.  
  7. void enqueue(int value);
  8. int dequeue(void);
  9.  
  10. int main(void)
  11. {
  12. 	head=tail=0;
  13. 	int data,i;
  14. 	enqueue(1);
  15. 	enqueue(2);
  16. 	dequeue();
  17. 	enqueue(3);
  18. 	dequeue();
  19. 	enqueue(4);
  20. 	enqueue(5);
  21. 	dequeue();
  22. 	enqueue(6);
  23.  
  24. 	for(i=0;i<SIZE;i++){
  25. 		printf("queue[%d]=%d\n",i,queue[i]);
  26. 	}
  27. 	return 0;
  28. }
  29.  
  30. void enqueue(int value)
  31. {
  32. 	if(head==(tail+1)%SIZE){
  33. 		printf("キュー満杯\n");
  34. 	}	
  35. 	else{
  36. 			queue[tail++]=value;
  37. 	}
  38. 	tail=tail%SIZE;
  39. }
  40.  
  41. int dequeue(void)
  42. {
  43. 	int value;
  44. 	if(head==tail){
  45. 		printf("キュー空\n");
  46. 		return 0;
  47. 	}
  48. 	else{
  49. 			value=queue[head];
  50. 			queue[head]=0;
  51. 			head++;
  52. 			head=head%SIZE;
  53. 			return value;
  54.  
  55. 	}
  56.  
  57. }
  58.  
  59.  
  60.  
  61.  
Success #stdin #stdout 0.01s 5308KB
comments (?)
stdin 
Standard input is empty
stdout 
queue[0]=6
queue[1]=0
queue[2]=0
queue[3]=4
queue[4]=5
https://ideone.com/YfTq2y
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!