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  1. #include <stdio.h>
  2.  
  3. #define SIZE 10
  4. double stack[SIZE];
  5. int sp;
  6.  
  7. void push(double value);
  8. double pop(void);
  9. int isFull(void);
  10. int isEmpty(void);
  11. void answer(void);
  12. void reset(void);
  13.  
  14. int main(void)
  15. {
  16. 	reset();
  17. 	while(1){
  18. 		int resp;
  19. 		double data,number1,number2;
  20.  
  21. 		scanf("%d",&resp);
  22.  
  23. 		if(resp==9)
  24. 		break;
  25.  
  26. 		else
  27. 		switch(resp){
  28. 			case 5: scanf("%lf",&data);
  29. 			        printf("data:%f\n",data);
  30. 			        push(data);
  31. 			        break;
  32. 			case 1: number1=pop();
  33. 			        number2=pop();
  34. 			        push(number2+number1);
  35. 			        break;
  36. 			case 2: number1=pop();
  37. 			        number2=pop();
  38. 			        push(number2-number1);
  39. 			        break;
  40. 			case 3: number1=pop();
  41. 			        number2=pop();
  42. 			        push(number2*number1);
  43. 			        break;
  44. 			case 4: number1=pop();
  45. 			        number2=pop();
  46. 			        push(number2/number1);
  47. 			        break;
  48.  
  49.  
  50. 		}
  51. 	}
  52.  
  53. 	answer();
  54.  
  55. 	return 0;
  56. }
  57.  
  58.  void push(double value)
  59.  {
  60.  	if(isFull()==0)
  61.  	stack[sp++]=value;
  62.  	else;
  63.  }
  64.  double pop(void)
  65.  {
  66.  	if(isEmpty()==0)
  67.  	return stack[--sp];
  68.  	else
  69.  	return 0;
  70.  }
  71.  
  72.   int isFull(void)
  73.   {
  74.   	if(sp>=SIZE)
  75.   	return 1;//空きがあるなら０ないなら１を返す
  76.   	else
  77.   	return 0;
  78.   }
  79.  int isEmpty(void)
  80.  {
  81.  	if(sp<=0)//空なら１空でないなら０を返す
  82.  	return 1;
  83.  	else
  84.  	return 0;
  85.  }
  86.  void answer(void)
  87.  {
  88.     printf("\nanswer:%f",pop());
  89.  }
  90.  void reset(void)
  91.  {
  92.  	int i;
  93.  
  94.  	for(i=0;i<=SIZE-1;i++)
  95.  	stack[i]=0;
  96.  	sp=0;
  97.  }
  98.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
5 1 5 2 1 9
stdout
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data:1.000000
data:2.000000

answer:3.000000
https://ideone.com/nICvEx
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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