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  1. #include <stdio.h>
  2.  
  3. #define SIZE 5
  4. int stack[SIZE];
  5. int sp;
  6.  
  7. void push(int value)
  8. {
  9. 	if(sp>=SIZE)
  10. 		printf("スタックが満杯で入りませんでした。\n");
  11. 	else
  12. 		stack[sp++]=value;
  13. }
  14. int pop(void)
  15. {
  16. 	if(sp<=0)
  17. 	{
  18. 		printf("スタックが空で取り出せませんでした。\n");
  19. 		return 0;
  20. 	}
  21. 	else
  22. 		return stack[--sp];
  23. }
  24.  
  25. int main (void)
  26. {
  27. 	sp=0;
  28. 	int resp,data;
  29.  
  30. 	while(1)
  31. 	{
  32. 		printf("1:push 2:pop 0:end \n");
  33. 		 scanf("%d", &resp);
  34.  
  35. 		if(!resp) break;
  36.  
  37. 		switch(resp)
  38. 		{
  39. 			case 1: 
  40. 				printf("push:");
  41. 				scanf("%d",&data);
  42. 				push(data);
  43. 				break;
  44. 			case 2:
  45. 				pop();
  46. 				break;	
  47. 		}
  48. 		printf("sp=%d\n",sp);
  49. 	}
  50. 	printf("\n");
  51. 	for(int i=0;i<sp;i++)
  52. 	{
  53. 		printf("stack[%d]=%d\n",i,stack[i]);
  54. 	}
  55. 	return 0;
  56. }
  57.  
Success #stdin #stdout 0s 5320KB
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stdout
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1:push 2:pop 0:end 
push:sp=1
1:push 2:pop 0:end 
sp=1
1:push 2:pop 0:end 
sp=1
1:push 2:pop 0:end 

stack[0]=10
https://ideone.com/Ymd2CS
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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