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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.     reset();
  16.  
  17.     while(1){
  18.         int resp,sum;
  19.         double data,cal1,cal2;
  20.         scanf("%d",&resp);
  21.  
  22.         if(resp == 9)    break;
  23.  
  24.         switch(resp){
  25.             case 1:cal1 = pop(); cal2 = pop();
  26.                    printf("data:%lf\ndata:%lf\n",cal2,cal1);
  27.                    sum = cal2 + cal1;
  28.                    push(sum);
  29.                    break;
  30.             case 2:cal1 =pop(); cal2 = pop();
  31.                    printf("data:%lf\ndata:%lf\n",cal2,cal1);
  32.                    sum = cal2 - cal1;
  33.                    push(sum);
  34.                    break;
  35.             case 3:cal1 =pop(); cal2 = pop();
  36.                    printf("data:%lf\ndata:%lf\n",cal2,cal1);
  37.                    sum = cal2 * cal1;
  38.                    push(sum);
  39.                    break;
  40.             case 4:cal1 =pop(); cal2 = pop();
  41.                    printf("data:%lf\ndata:%lf\n",cal2,cal1);
  42.                    sum = cal2 / cal1;
  43.                    push(sum);
  44.                    break;
  45.             case 5:scanf("%lf",&data);
  46.                    push(data);
  47.                    break;
  48.              }   
  49.     }
  50.  
  51.     answer();
  52.  
  53.     return 0;
  54. }
  55.  
  56. void push(double value){
  57.     if( isFull() ){
  58.         printf("スタックが満杯で入りませんでした\n");
  59.     }
  60.     stack[sp++] = value;
  61. }
  62.  
  63. double pop(void){
  64.     if( isEmpty() ){
  65.         printf("スタックが空で取り出せませんでした\n");
  66.     }
  67.     return stack[--sp];
  68. }
  69.  
  70. int isFull(void){
  71.     if(sp >= SIZE){
  72.         return 1;
  73.     }
  74.     else{
  75.         return 0;
  76.     }
  77. }
  78.  
  79. int isEmpty(void){
  80.     if(sp <= 0){
  81.         return 1;
  82.     }
  83.     else{
  84.         return 0;
  85.     }
  86. }
  87.  
  88. void answer(void){
  89.     printf("answer:%lf",pop());
  90. }
  91.  
  92. void reset(void){
  93.     sp = 0;
  94.     for(int i=0;i<10;i++)
  95.     stack[i] = 0;
  96. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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5
4
5
2
4
9
stdout
copy 
data:4.000000
data:2.000000
answer:2.000000
https://ideone.com/6462wF
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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