fork download
copy 
  1.  
  2. #include <stdio.h>
  3.  
  4. #define SIZE 10
  5.  
  6. double stack[SIZE];
  7. int sp;
  8.  
  9. void push(double value);
  10. double pop(void);
  11. int isFull(void);
  12. int isEmpty(void);
  13. void answer(void);
  14. void reset(void);
  15.  
  16. int main(void)
  17. {
  18.     int resp;
  19.     double data, cal1, cal2;
  20.  
  21.     reset();
  22.  
  23.     while(1){
  24.         if(scanf("%d", &resp) != 1) break;
  25.  
  26.         if(resp == 9) break;
  27.  
  28.         switch(resp){
  29.             case 1:
  30.                 cal1 = pop();
  31.                 cal2 = pop();
  32.                 push(cal2 + cal1);
  33.                 break;
  34.  
  35.             case 2:
  36.                 cal1 = pop();
  37.                 cal2 = pop();
  38.                 push(cal2 - cal1);
  39.                 break;
  40.  
  41.             case 3:
  42.                 cal1 = pop();
  43.                 cal2 = pop();
  44.                 push(cal2 * cal1);
  45.                 break;
  46.  
  47.             case 4:
  48.                 cal1 = pop();
  49.                 cal2 = pop();
  50.                 push(cal2 / cal1);
  51.                 break;
  52.  
  53.             case 5:
  54.                 if(scanf("%lf", &data) != 1) return 1;
  55.                 printf("data:%f\n", data);
  56.                 push(data);
  57.                 break;
  58.         }
  59.     }
  60.  
  61.     answer();
  62.  
  63.     return 0;
  64. }
  65.  
  66. void push(double value)
  67. {
  68.     if(isFull()){
  69.         printf("stack is full\n");
  70.     }
  71.     else{
  72.         stack[sp++] = value;
  73.     }
  74. }
  75.  
  76. double pop(void)
  77. {
  78.     if(isEmpty()){
  79.         printf("stack is empty\n");
  80.         return 0;
  81.     }
  82.     else{
  83.         return stack[--sp];
  84.     }
  85. }
  86.  
  87. int isFull(void)
  88. {
  89.     if(sp >= SIZE){
  90.         return 1;
  91.     }
  92.     else{
  93.         return 0;
  94.     }
  95. }
  96.  
  97. int isEmpty(void)
  98. {
  99.     if(sp <= 0){
  100.         return 1;
  101.     }
  102.     else{
  103.         return 0;
  104.     }
  105. }
  106.  
  107. void answer(void)
  108. {
  109.     if(!isEmpty()){
  110.         printf("\nanswer:%f\n", pop());
  111.     }
  112.     else{
  113.         printf("stack is empty\n");
  114.     }
  115. }
  116.  
  117. void reset(void)
  118. {
  119.     sp = 0;
  120. }
  121.  
Success #stdin #stdout 0s 5324KB
comments (?)
stdin
copy 
5
1
5
2
1
9
stdout
copy 
data:1.000000
data:2.000000

answer:3.000000
https://ideone.com/KtJ56o
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!