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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.     int resp,i;
  16.     double data;
  17.  
  18.     reset();
  19.  
  20.     while (1) {
  21.     scanf("%d", &resp);
  22. 	if(resp=9)
  23. 	break;
  24.     switch (resp) {
  25.             case 1: 
  26.                 push(pop() + pop());
  27.                 break;
  28.             case 2:
  29.                 {
  30.                     double b = pop();
  31.                     double a = pop();
  32.                     push(a - b);
  33.                 }
  34.                 break;
  35.             case 3:  
  36.                 push(pop() * pop());
  37.                 break;
  38.             case 4: 
  39.                 {
  40.                     double d = pop();
  41.                     double c = pop();
  42.                     if (d != 0) {
  43.                         push(c / d);
  44.                     } else {
  45.                         printf("0では割れません\n");
  46.                     }
  47.                 }
  48.                 break;
  49.             case 5: 
  50.                 scanf("%lf", &data);
  51.                 push(data);
  52.                 printf("data: %lf\n", data);
  53.                 break;
  54.         }
  55.     }
  56.     answer();
  57.     return 0;
  58. }
  59. void push(double value) {
  60.     if (isFull()) {
  61.         printf("スタックが満タンで入りません\n");
  62.     } else {
  63.         stack[sp++] = value;
  64.     }
  65. }
  66. double pop(void) {
  67.     if (isEmpty()) {
  68.         printf("スタックが空で取り出せませんでした\n");
  69.         return 0;
  70.     } else {
  71.         return stack[--sp];
  72.     }
  73. }
  74. int isFull(void) {
  75.     if(sp >= SIZE){
  76.     	return 5;
  77.     }else
  78.     return 0;
  79. }
  80. int isEmpty(void) {
  81.     if(sp <= 0){
  82.     	return 5;
  83.     }else
  84.     return 0;
  85. }
  86. void answer(void) {
  87.         printf("answer: %lf\n", stack[sp-1]);
  88.  
  89. }
  90. void reset(void) {
  91.     sp = 0;
  92. }
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin
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5
2
5
1
1
9
stdout
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answer: 0.000000
https://ideone.com/xAJnIA
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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