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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. 	reset();
  16.  
  17. 	while(1){
  18. 		int menu;
  19. 		double a,b;
  20.  
  21. 		if(scanf("%d",&menu)==EOF){
  22. 			break;
  23. 		}
  24.  
  25. 		if (menu==9){
  26. 			break;
  27. 		}
  28.  
  29. 		switch(menu){
  30. 			case 5:
  31. 			     scanf("%lf",&a);
  32. 			     push(a);
  33. 			     printf("data:%lf\n",a);
  34. 			     break;
  35.  
  36. 			case 1:
  37. 			     b=pop(); a=pop();
  38. 			     push(a+b);
  39. 			     break;
  40.  
  41. 			case 2:
  42. 			     b=pop(); a=pop();
  43. 			     push(a-b);
  44. 			     break;
  45.  
  46. 			case 3:
  47.                  b=pop(); a=pop();
  48. 			     push(a*b);
  49. 			     break;
  50.  
  51. 			case 4:
  52. 			     b=pop(); a=pop();
  53. 			     if(b!=0.0){
  54. 			     	push(a/b);
  55. 			     }else{
  56. 			     	printf("0では割れません");
  57. 			     }
  58. 			     break;
  59.  
  60. 			     default:
  61. 			      break;
  62.  
  63.  
  64. 		}
  65. 	}
  66.  
  67.  
  68. 	answer();
  69.  
  70. 	return 0;
  71. }
  72.  
  73. void push(double value)
  74. {
  75. 	if(isFull()){
  76. 		printf("スタックが満杯で入りませんでした\n");
  77. 		return;
  78. 	}
  79. 	stack[sp]=value;
  80. 	sp++;
  81.  
  82. }
  83.  
  84. double pop(void)
  85. {
  86. 	if(isEmpty()){
  87. 		printf("スタックが空で取り出せませんでした\n");
  88. 		return 0.0;
  89. 	}
  90. 	sp--;
  91. 	return stack[sp];
  92. }
  93.  
  94. int isFull(void)
  95. {
  96.  if(sp>=SIZE){
  97.  	return 1;
  98.  	} else return 0;
  99. }
  100.  
  101. int isEmpty(void)
  102. {
  103.  if(sp==0){
  104.  	return 1;
  105.  } else return 0;
  106. }
  107.  
  108. void answer(void)
  109. {
  110. 	if(isEmpty()){
  111. 	printf("表示する結果がありません\n");
  112. 	return;
  113. 	}
  114. 	printf("answer:%lf\n",stack[sp-1]);
  115. }
  116.  
  117. void reset(void)
  118. {
  119. 	sp=0;
  120. }
  121.  
  122. 	// your code goes here
  123.  
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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5
1
5
3
1
9
stdout
copy 
data:1.000000
data:3.000000
answer:4.000000
https://ideone.com/VIJefa
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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