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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. 	while(1){
  17. 		double data;
  18. 		double cal1,cal2;
  19. 		int resp;
  20.  
  21. 		scanf("%d",&resp);
  22.  
  23. 		if(resp==9)break;
  24.  
  25. 		switch(resp){
  26. 			case 1:cal1=pop();
  27. 			       cal2=pop();
  28. 			       push(cal2+cal1);
  29. 			       break;
  30.  
  31. 			case 2:cal1=pop();
  32. 			       cal2=pop();
  33. 			       push(cal2-cal1);
  34. 			       break;
  35.  
  36. 			case 3:cal1=pop();
  37. 			       cal2=pop();
  38. 			       push(cal2*cal1);
  39. 			       break;
  40.  
  41. 			case 4:cal1=pop();
  42. 			       cal2=pop();
  43. 			       push(cal2/cal1);
  44. 			       break;
  45.  
  46. 			case 5:printf("data:");
  47. 			       scanf("%lf",&data);
  48. 			       push(data);
  49. 			       printf("%lf\n",data);
  50. 			       break;
  51. 		}
  52. 	}
  53. 	answer();
  54. 	return 0;
  55. }
  56.  
  57. void push(double value){
  58. 	if(isFull()){
  59. 		printf("スタックが満杯で入りませんでした\n");
  60. 	}else{
  61. 		stack[sp++]=value;
  62. 	}
  63. }
  64.  
  65. double pop(void){
  66. 	if(isEmpty()){
  67. 		printf("スタックが空で取り出せませんでした\n");
  68. 		return 0;
  69. 	}else{
  70. 		return stack[--sp];
  71. 	}
  72. }
  73.  
  74. int isFull(void){
  75. 	if(sp>=SIZE){
  76. 		return 1;
  77. 	}else{
  78. 		return 0;
  79. 	}
  80. }
  81.  
  82. int isEmpty(void){
  83. 	if(sp<=0){
  84. 		return 1;
  85. 	}else{
  86. 		return 0;
  87. 	}
  88. }
  89.  
  90. void answer(void){
  91. 	printf("\n");
  92. 	printf("answer:%lf\n",stack[0]);
  93. }
  94.  
  95. void reset(void){
  96. 	while(!isEmpty())
  97. 	pop();
  98. }
  99.  
Success #stdin #stdout 0s 5332KB
comments (?)
stdin 
5
1
5
2
1
9
stdout 
data:1.000000
data:2.000000

answer:3.000000
https://ideone.com/8lg7mP
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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