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  1. #include<stdio.h>
  2. #define SIZE 10
  3. double stack[SIZE];
  4. int sp;
  5. void push(double value);
  6. double pop(void);
  7. int isFull(void);
  8. int isEmpty(void);
  9. void answer(void);
  10. void reset(void);
  11. int main(void)
  12. {
  13. reset();
  14. while(1){
  15. int num;
  16. double x,cal1,cal2;
  17. if (scanf("%d", &num) != 1)
  18.     break;
  19. switch(num){
  20. case 1:
  21.  cal1=pop();
  22.  cal2=pop();
  23.  push(cal1+cal2);
  24.  break;
  25. case 2:
  26.  cal1=pop();
  27.  cal2=pop();
  28.  push(cal2-cal1);
  29.  break;
  30. case 3:
  31.  cal1=pop();
  32.  cal2=pop();
  33.  push(cal1*cal2);
  34.  break;
  35. case 4:
  36.  cal1=pop();
  37.  cal2=pop();
  38.  push(cal2/cal1);
  39.  break;
  40. case 5:
  41.  scanf("%lf",&x);
  42.  push(x);
  43. printf("data%d:%f\n",sp,stack[sp-1]);
  44.  break;
  45. case 9:
  46.  answer();
  47.  break;
  48. }}
  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");
  55.  else
  56.    {stack[sp]=value;
  57.    sp++;}
  58.  
  59. }
  60. double pop(void)
  61. {if (isEmpty()==1)
  62.     {printf("スタックが空で取り出せませんでした");
  63.     return 0;}
  64.  else
  65.     {sp--;
  66.      return stack[sp];}
  67.  
  68. }
  69. int isFull(void)
  70. {if(sp==SIZE)
  71.    return 1;
  72.  else
  73.    return 0;
  74.  
  75. }
  76. int isEmpty(void)
  77. {if(sp==0)
  78.    return 1;
  79.  else
  80.    return 0;
  81.  
  82.  
  83. }
  84. void answer(void)
  85. {if(isEmpty()==1)
  86.   printf("スタックが空です");
  87. else
  88. printf("answer:%f\n",stack[sp-1]);
  89.  
  90. }
  91. void reset(void)
  92. {sp=0;
  93. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
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5
1
5
2
3
9
stdout
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data1:1.000000
data2:2.000000
answer:2.000000
https://ideone.com/1bUjql
language:
C (gcc 8.3)
created:
11 hours ago
visibility:
public

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