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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. int dequeue(void);
  9.  
  10. int main(void) {
  11. 	head=tail=0;
  12. 	int data,i;
  13.  
  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. 	if(head==(tail+1)%SIZE){
  32. 		printf("キューは満杯で入りませんでした\n");
  33. 	}else{
  34. 		queue[tail++]=value;
  35. 	}
  36. 	tail=tail%SIZE;
  37. }
  38.  
  39. int dequeue(void){
  40. 	int value;
  41. 	if(head==tail){
  42. 		printf("キューは空で取り出せませんでした\n");
  43. 	}else{
  44. 		//queue[head]=0;
  45. 		queue[head++]=0;
  46. 	}
  47. 	head=head%SIZE;
  48. 	return 0;//value;
  49. }
Success #stdin #stdout 0.01s 5316KB
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stdin
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Standard input is empty
stdout
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queue[0]=6
queue[1]=0
queue[2]=0
queue[3]=4
queue[4]=5
https://ideone.com/U3uKT5
language:
C (gcc 8.3)
created:
16 days ago
visibility:
public

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