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  1. #include<stdio.h>
  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. {
  17.     reset();
  18.     int resp;
  19. 	double data;
  20.  
  21. 	while(1){
  22. 		scanf("%d", &resp);
  23. 		if(resp==9) break;
  24. 		double x, y;
  25.  
  26. 		switch(resp){
  27. 			case 1: x=pop();
  28. 					y=pop();
  29. 					push(y+x);
  30. 					break;
  31. 			case 2: x=pop();
  32. 					y=pop();
  33. 					push(y-x);
  34. 					break;
  35. 			case 3: x=pop();
  36. 					y=pop();
  37. 					push(y*x);
  38. 					break;
  39. 			case 4: x=pop();
  40. 					y=pop();
  41. 					push(y/x);
  42. 					break;
  43. 			case 5: scanf("%lf",&data);
  44. 				    push(data);
  45. 				    printf("data:%lf\n", data);
  46. 				    break;
  47. 		}
  48. 	}
  49. 	answer();
  50. 	return 0;
  51. }
  52.  
  53. void push (double value){
  54. 	if( isFull() ){
  55. 		printf("スタックが満杯で入りませんでした\n");
  56. 	}
  57. 	else{
  58. 		stack[sp++] = value;
  59. 	}
  60. }
  61.  
  62. double pop(void){
  63. 	if( isEmpty() ){
  64. 		printf("スタックが空で取り出せませんでした/n");
  65. 		return 0;
  66. 	}
  67. 	else{
  68. 		return stack[--sp];
  69. 	}
  70. }
  71.  
  72. int isFull(void){
  73. 	if(sp >= SIZE){
  74. 		return 1;
  75. 	}
  76. 	else{
  77. 		return 0;
  78. 	}
  79. }
  80.  
  81. int isEmpty(void){
  82. 	if(sp<= 0){
  83. 		return 1;
  84. 	}
  85. 	else{
  86. 		return 0;
  87. 	}
  88. }
  89.  
  90. void answer(void){
  91. 	printf("answer:%lf", stack[0] );
  92. }
  93.  
  94. void reset(void){
  95. 	while(isEmpty()==0){
  96. 		pop();}
  97. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
5 1 5 2 1 9
stdout
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data:1.000000
data:2.000000
answer:3.000000
https://ideone.com/94Ey3i
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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