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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. int main(void) 
  14. {
  15.     reset();
  16.  
  17. 	while(1){
  18. 	double cal1,cal2,data;
  19. 	int resp;
  20. 	scanf("%d",&resp);
  21.  
  22. 		switch(resp){
  23. 			case 1: cal2 = pop();
  24. 			        cal1 = pop(); 
  25. 			        push(cal1+cal2);
  26. 			        break;
  27. 			case 2: cal2 = pop();
  28. 			        cal1 = pop(); 
  29. 			        push(cal1-cal2);
  30. 			        break;
  31. 			case 3: cal2 = pop();
  32. 			        cal1 = pop(); 
  33. 			        push(cal1*cal2);
  34. 			        break;
  35. 			case 4: cal2 = pop();
  36. 			        cal1 = pop(); 
  37. 			        push(cal1/cal2);
  38. 			        break;
  39. 			case 5: printf("push : ");
  40. 			        scanf("%lf",&data);
  41. 			        push( data );
  42. 			        break;
  43. 			case 9: answer();
  44. 			        break;
  45. 			        return 0;
  46. 		}
  47. 		printf("sp=%d\n", sp);
  48. 		break;
  49. 	}
  50.  
  51. 	answer();
  52.  
  53. 	return 0;
  54. }
  55.  
  56. void push(double value)
  57. {
  58. 	if(isFull()){
  59. 		printf("このスタックは満杯です");
  60. 	}else{
  61. 		stack[sp++]=value;
  62. 	}
  63. }
  64.  
  65. double pop(void)
  66. {
  67. 	if(isEmpty()){
  68. 	   printf("このスタックは空です");
  69. 	}else{
  70. 		return stack[sp--];
  71. 	}
  72. }
  73.  
  74. int isFull(void)
  75. {
  76. 	if(sp>=SIZE){
  77. 	    return 1;	
  78. 	}else{
  79. 		return 0;
  80. 	}
  81. }
  82.  
  83. int isEmpty(void)
  84. {
  85. 	if(sp<=0){
  86. 		return 1;	
  87. 	}else{
  88. 		return 0;
  89.     }
  90. }
  91.  
  92. void answer(void)
  93. {
  94.     printf("\n");
  95. 	for(int i=0; i<sp; i++){
  96. 		printf("stack[%d]=%f\n", i, stack[i]);
  97. 	}	
  98. }
  99.  
  100. void reset(void){
  101. 	sp=0;
  102. }
  103.  
Success #stdin #stdout 0s 5328KB
comments (?)
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5
stdout
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push : sp=1

stack[0]=0.000000
https://ideone.com/e6zpoJ
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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