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  1. #include <stdio.h>
  2.  
  3. #define SIZE 5
  4. int stack[SIZE];
  5. int sp;
  6.  
  7. void push(int value);
  8. int pop(void);
  9. int isFull(void);
  10.  
  11. int main(void)
  12. {
  13.     sp = 0;
  14.     int resp, data;
  15.  
  16.     while(1){
  17.         printf("1:push 2:pop 0:end : ");
  18.         scanf("%d", &resp);
  19.  
  20.         if(!resp) break;
  21.  
  22.         switch(resp){
  23.             case 1:
  24.                 printf("push : ");
  25.                 scanf("%d", &data);
  26.                 push(data);
  27.                 break;
  28.             case 2:
  29.                 pop();
  30.                 break;
  31.         }
  32.         printf("sp=%d\n", sp);
  33.     }
  34.  
  35.     printf("\n");
  36.     for(int i=0; i<sp; i++){
  37.         printf("stack[%d]=%d\n", i, stack[i]);
  38.     }
  39.  
  40.     return 0;
  41. }
  42.  
  43. int isFull(void)
  44. {
  45.     return sp >= SIZE;
  46. }
  47.  
  48. void push(int value)
  49. {
  50.     if(isFull()){ 
  51.         printf("スタックが満杯で入りませんでした\n");
  52.     }else{
  53.         stack[sp++] = value;
  54.     }
  55. }
  56.  
  57. int pop(void)
  58. {
  59.     if(sp <= 0){
  60.         printf("スタックが空で取り出せませんでした\n");
  61.         return 0;
  62.     }else{
  63.         return stack[--sp];
  64.     }
  65. }
  66.  
Success #stdin #stdout 0s 5276KB
comments (?)
stdin 
Standard input is empty
stdout 
1:push 2:pop 0:end : push : sp=1
1:push 2:pop 0:end : push : sp=2
1:push 2:pop 0:end : sp=1
1:push 2:pop 0:end : sp=1
1:push 2:pop 0:end : push : sp=2
1:push 2:pop 0:end : 
stack[0]=10
stack[1]=99
https://ideone.com/RVM1tH
4Q演習課題3.1
language:
C99 (gcc 8.3)
created:
11 days ago
visibility:
public

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