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  1. #include <stdio.h>
  2.  
  3. #define SIZE 5
  4. int queue[SIZE];
  5. int head,tail;
  6.  
  7. void enqueue(int value){
  8. 	if(head==(tail+1)%SIZE){
  9. 		printf("満タン\n");
  10. 	}else{
  11. 		queue[tail]=value;
  12. 		tail=(tail+1)%SIZE;
  13. 	}
  14. }
  15.  
  16. int dequeue(){
  17. 	int value;
  18. 	if(head==tail){
  19. 		printf("空\n");
  20. 		return 0;
  21. 	}else{
  22. 		value=queue[head++];
  23. 	}
  24. 	head=head%SIZE;
  25. 	return value;
  26. }
  27. int main(void) {
  28. 	dequeue();
  29. 	enqueue(1);
  30. 	enqueue(2);
  31. 	dequeue();
  32. 	enqueue(3);
  33. 	enqueue(4);
  34. 	enqueue(5);
  35. 	enqueue(6);
  36. 	dequeue();
  37. 	enqueue(7);
  38. 	for(int i=head;i!=tail;i=(i+1)%SIZE){
  39. 		printf("queue[%d]=%d\n",i,queue[i]);
  40. 	}
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
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Standard input is empty
stdout
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空
満タン
queue[2]=3
queue[3]=4
queue[4]=5
queue[0]=7
https://ideone.com/m19xTo
queue
language:
C99 (gcc 8.3)
created:
8 days ago
visibility:
public

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