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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. {
  16.     reset();
  17.     while(1){
  18.     int resp;
  19.     double a,b;
  20.     scanf("%d",&resp);
  21.     switch(resp){
  22.     case 1:a=pop();
  23.            b=pop();
  24.            push(a+b);
  25.            break;
  26.     case 2:b=pop();
  27.            a=pop();
  28.            push(a-b);
  29.            break;
  30.     case 3:a=pop();
  31.            b=pop();
  32.            push(a*b);
  33.            break;
  34.     case 4:b=pop();
  35.            a=pop();
  36.            push(a/b);
  37.            if(b==0) printf("0で割ることはできません");
  38.            break;
  39.     case 5:{
  40.     double value;
  41.            scanf("%lf",&value);
  42.            printf("data:%lf\n",value);
  43.            push(value);
  44.            break;
  45.     }
  46.     case 9:answer();
  47.            return 0;
  48.     }
  49.     }
  50.     return 0;
  51. }
  52. void push(double value){
  53. if(SIZE>sp){
  54. stack[sp++]=value;
  55. }
  56. }
  57. double pop(void){
  58. if(sp>0)
  59. return stack[--sp];
  60. }
  61. int isFull(void){
  62. if(SIZE<=sp){
  63. printf("スタックは満杯です\n");
  64. }
  65. }
  66. int isEmpty(void){
  67. if(sp<=0){
  68. printf("スタックは空です\n");
  69. }
  70. }
  71. void answer(void){
  72. printf("answer:%f",pop());
  73. }
  74. void reset(void){
  75. sp=0;
  76. }
Success #stdin #stdout 0.01s 5264KB
comments (?)
stdin
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5
1
5
2
1
9
stdout
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data:1.000000
data:2.000000
answer:3.000000
https://ideone.com/IeU8kv
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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