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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.  
  28. 	return 0;
  29. }
  30. void enqueue(int value)
  31. {
  32. 	if( head==(tail+1)%SIZE){
  33. 		printf("キューは満杯ではありませんでした\n");
  34. 	}
  35. 		else{
  36. 			queue[tail++]=value;
  37. 		}
  38. 		tail=tail%SIZE;
  39. 	}
  40. 	int dequeue(void)
  41. 	{
  42. 		int value;
  43. 		if( head == tail){
  44. 			printf("キューは空ではありませんでした\n");
  45. 			return 0;
  46. 		}
  47. 		else{
  48. 			value = queue[head];
  49.         head = (head + 1) % SIZE;
  50.         return value;
  51. 		}
  52.  
  53. 	}
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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queue[0]=6
queue[1]=2
queue[2]=3
queue[3]=4
queue[4]=5
https://ideone.com/Kwk7iH
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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