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  1. #include <stdio.h>
  2.  
  3. #define SIZE 10
  4. int stack[SIZE];
  5. int sp;
  6.  
  7. void push(double value);
  8. double pop(void);
  9.  
  10. int isFull(void);
  11. int isEmpty(void);
  12. void answer(void);
  13. void reset(void);
  14.  
  15. int main(void){
  16.  reset();
  17.  while(1){
  18.   int resp,data;
  19.   double cal1,cal2;
  20.   scanf("%d", &resp);
  21.   if(resp == 9)
  22.  
  23.   break;
  24.   switch(resp){
  25.    case 1: cal1 = pop();
  26.      cal2 = pop();
  27.      push(cal2 + cal1);
  28.      break;
  29.    case 2: cal1 = pop();
  30.      cal2 = pop();
  31.      push(cal2 - cal1);
  32.      break;
  33.    case 3: cal1 = pop();
  34.      cal2 = pop();
  35.      push(cal2 * cal1);
  36.      break;
  37.    case 4: cal1 = pop();
  38.      cal2 = pop();
  39.      push(cal2 / cal1);
  40.      break;
  41.    case 5: scanf("%d", &data);
  42.      printf("data:%d\n", data);
  43.      push(data);
  44.      break;
  45.   }
  46.  }
  47.  
  48.  answer();
  49.  return 0;
  50. }
  51.  
  52. void push(double value){
  53.  if(isFull()==1){
  54.   printf("スタックが満杯で入りませんでした\n");
  55.  }else{
  56.   stack[sp++] = value;
  57.  }
  58. }
  59. double pop(void){
  60.  if(isEmpty()==1){
  61.   printf("スタックが空で取り出せませんでした\n");
  62.   return 0;
  63.  }else{
  64.   return stack[--sp];
  65.  }
  66. }
  67. int isFull(void){
  68.  if(sp >= SIZE)return 1;
  69.  else return 0;
  70. }
  71. int isEmpty(void){
  72.  if(sp <= 0)return 1;
  73.  else return 0;
  74. }
  75. void answer(void){
  76.  printf("answer:%f", pop());
  77. }
  78. void reset(void){
  79.  sp = 0;
  80. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
5 1 5 2 1 9
stdout
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data:1
data:2
answer:3.000000
https://ideone.com/ETChsa
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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