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  1. #include <stdio.h>
  2.  
  3. #define SIZE 10
  4. int 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. 	int resp;
  18. 	double data;
  19. 	double cal1,cal2;
  20.  
  21. 	while(1){
  22. 		scanf("%d",&resp);
  23.  
  24. 		if(resp==9) break;
  25.  
  26. 		switch(resp){
  27. 			case 1:cal1=pop();
  28. 			       cal2=pop();
  29. 			       push(cal2+cal1);
  30. 			       break;
  31.  
  32. 			case 2:cal1=pop();
  33. 			       cal2=pop();
  34. 			       push(cal2-cal1);
  35. 			       break;
  36.  
  37. 			case 3:cal1=pop();
  38. 			       cal2=pop();
  39. 			       push(cal2*cal1);
  40. 			       break;
  41.  
  42. 			case 4:cal1=pop();
  43. 			       cal2=pop();
  44. 			       push(cal2/cal1);
  45. 			       break;
  46.  
  47. 			case 5:scanf("%lf",&data);
  48. 			       printf("data:%f\n",data);
  49. 			       push(data);
  50. 			       break;
  51.  
  52. 		}
  53.  
  54. 	}
  55.  
  56. 	answer();
  57.  
  58. 	return 0;
  59. }
  60.  
  61. void push(double value){
  62. 	if(isFull()==1){
  63. 		printf("スタックが満杯で入りませんでした\n");
  64. 	}else{
  65. 		stack[sp++]=value;
  66. 	}
  67. }
  68.  
  69. double pop(void){
  70. 	if(isEmpty()==1){
  71. 		printf("スタックが空で取り出せませんでした\n");
  72. 		return 0;
  73. 	}else{
  74. 		return stack[--sp];
  75. 	}
  76. }
  77.  
  78. int isFull(void){
  79. 	if(sp>=SIZE){
  80. 		return 1;
  81. 	}else{
  82. 		return 0;
  83. 	}
  84. }
  85.  
  86. int isEmpty(void){
  87. 	if(sp<=0){
  88. 		return 1;
  89. 	}else{
  90. 		return 0;
  91. 	}
  92. }
  93.  
  94. void answer(void){
  95. 	printf("answer:%f",pop());
  96.  
  97. }
  98.  
  99. void reset(void){
  100. 	sp=0;
  101. }
  102.  
  103.  
  104.  
  105.  
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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5
1
5
2
1
9
stdout
copy 
data:1.000000
data:2.000000
answer:3.000000
https://ideone.com/vaSJFn
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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