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  1. #include <stdio.h>
  2. #define SIZE 10
  3. double stack[SIZE];
  4. int sp;
  5.  
  6. void push(double value);
  7. double pop(void);
  8. int isFull(void);
  9. int isEmpty(void);
  10. void answer(void);
  11. void reset(void);
  12.  
  13. int main(void) {
  14. 	reset();
  15.  
  16. 	while(1){
  17. 		int resp;
  18. 		double data,cal1,cal2;
  19. 		scanf("%d",&resp);
  20. 		if(resp == 9){
  21. 			break;
  22. 		}
  23. 		switch(resp){
  24. 			case 1: cal1 = pop();
  25. 					cal2 = pop();
  26. 					push(cal2 + cal1);
  27. 					break;
  28. 			case 2: cal1 = pop();
  29. 					cal2 = pop();
  30. 					push(cal2 - cal1);
  31. 					break;
  32. 			case 3: cal1 = pop();
  33. 					cal2 = pop();
  34. 					push(cal2 * cal1);
  35. 					break;
  36. 			case 4: cal1 = pop();
  37. 					cal2 = pop();
  38. 					push(cal2 / cal1);
  39. 					break;
  40. 			case 5: printf("data:");
  41. 					scanf("%lf",&data);
  42. 					push(data);
  43. 					printf("data:%f\n", data);
  44. 					break;
  45. 		}
  46. 	}
  47. 	answer();
  48.  
  49. 	return 0;
  50. }
  51. void push(double value){
  52. 	if(!isFull()){
  53. 		printf("スタックが満杯で入りませんでした\n");
  54. 	}else{
  55. 		stack[sp++] = value;
  56. 	}
  57. }
  58. double pop(void){
  59. 	if(!isEmpty()){
  60. 		printf("スタックが空で取り出せませんでした\n");
  61. 		return 0;
  62. 		}else{
  63. 			return stack[--sp];
  64. 	}
  65. }
  66. int isFull(void){
  67. 	if(sp >= SIZE){
  68. 		return 1;
  69. 	}else{
  70. 		return 0;
  71. 	}
  72. }
  73. int isEmpty(void){
  74. 	if(sp <= 0){
  75. 		return 1;
  76. 	}else{
  77. 		return 0;
  78. 	}
  79. }
  80. void answer(void){
  81. 		printf("\n");
  82. 		printf("answer:%f\n",stack[0]);
  83. 	}
  84. void reset(void){
  85. 	while(!isEmpty())
  86. 	pop();
  87. }
Success #stdin #stdout 0s 5328KB
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stdin
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5
1
5
2
1
9
stdout
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data:スタックが満杯で入りませんでした
data:1.000000
data:スタックが満杯で入りませんでした
data:2.000000
スタックが満杯で入りませんでした

answer:0.000000
https://ideone.com/tjUExe
language:
C (gcc 8.3)
created:
14 hours ago
visibility:
public

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