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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.  
  15. int main(void) {
  16.  
  17. reset();
  18. while(1){
  19. double data,a,b;
  20. int resp;
  21. if (scanf("%d", &resp) != 1 || !resp) {
  22.             break;}
  23. switch(resp){
  24.   case 1:a=pop();
  25.          b=pop();
  26.          push (b+a);
  27.          break;
  28.   case 2:a=pop();
  29.          b=pop();
  30.          push (b-a);
  31.         break;
  32.   case 3:a=pop();
  33.          b=pop();
  34.          push (b*a);
  35.          break;
  36.   case 4:a=pop();
  37.          b=pop();
  38.          push (b/a);
  39.          break;
  40.   case 5:scanf("%lf",&data);
  41.          printf("data:%lf\n",data);
  42.          push (data);
  43.         break;
  44.   case 9:answer();
  45.               break;
  46.  default:
  47.      break;
  48.   }
  49. }
  50.     answer();
  51.     return 0;
  52. }
  53. void push(double value)
  54. {
  55.  if (!isFull())
  56.  {
  57.     stack[sp]=value;
  58.     sp++;
  59.   }
  60. }
  61. double pop(void)
  62. {
  63.   if (!isEmpty())
  64.   {
  65.     sp--;
  66.    return stack[sp];
  67.    }
  68. }
  69. int isFull(void)
  70. {
  71.  return sp >= SIZE;
  72. }
  73. int isEmpty(void)
  74. {
  75.  return sp <= 0;
  76. }
  77. void answer(void)
  78. {
  79.     if (sp > 0) {
  80.         printf("answer: %f\n", stack[sp - 1]);
  81.     }
  82. }
  83. void reset(void)
  84. {
  85.     sp = 0;
  86. }
  87.  
  88. 	// your code goes here
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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5
5
5
3
2
9
0
stdout
copy 
data:5.000000
data:3.000000
answer: 2.000000
answer: 2.000000
https://ideone.com/yBV791
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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