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  1.  
  2.  
  3. #define SIZE 10
  4. double stack[SIZE];
  5. int sp;
  6.  
  7.  
  8. void push(double value);
  9. double pop(void);
  10. int isFull(void);
  11. int isEmpty(void);
  12. void answer(void);
  13. void reset(void);
  14.  
  15. int main(void){
  16.     reset();
  17.     int resp;
  18. 	double data;
  19.  
  20. 	while(1){
  21. 		scanf("%d", &resp);
  22. 		if(resp==9) break;
  23. 		double a, b;
  24.  
  25. 		switch(resp){
  26. 			case 1: a=pop();
  27. 				b=pop();
  28. 				push(a+b);
  29. 				break;
  30. 			case 2: a=pop();
  31. 				b=pop();
  32. 				push(b-a);
  33. 				break;
  34. 			case 3: a=pop();
  35. 				b=pop();
  36. 				push(b*a);
  37. 				break;
  38. 			case 4: a=pop();
  39. 				b=pop();
  40. 				push(b/a);
  41. 				break;
  42. 			case 5: scanf("%lf",&data);
  43. 				push(data);
  44. 				printf("data:%lf\n", data);
  45. 				break;
  46. 		}
  47. 	}
  48. 		answer();
  49. 		return 0;
  50. }
  51.  
  52. void push (double value){
  53. 	if( isFull() ){
  54. 		printf("スタックが満杯で入りませんでした\n");
  55. 	}
  56. 	else{
  57. 		stack[sp++] = value;
  58. 	}
  59. }
  60.  
  61. double pop(void){
  62. 	if( isEmpty() ){
  63. 		printf("スタックが空で取り出せませんでした/n");
  64. 		return 0;
  65. 	}
  66. 	else{
  67. 		return stack[--sp];
  68. 	}
  69. }
  70.  
  71. int isFull(void){
  72. 	if(sp >= SIZE){
  73. 		return 1;
  74. 	}
  75. 	else{
  76. 		return 0;
  77. 	}
  78. }
  79.  
  80. int isEmpty(void){
  81. 	if(sp<= 0){
  82. 		return 1;
  83. 	}
  84. 	else{
  85. 		return 0;
  86. 	}
  87. }
  88.  
  89. void answer(void){
  90. 	printf("answer:%lf", stack[0] );
  91. }
  92.  
  93. void reset(void){
  94. 	while(isEmpty()==0){
  95. 		pop();
  96. 	}
  97. }
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin
copy 
5 4 5 2 2 9
stdout
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data:4.000000
data:2.000000
answer:2.000000
https://ideone.com/y6igFZ
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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