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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.  
  10. int main(void) 
  11. {
  12.     sp = 0;
  13.     int resp, data;
  14.  
  15.     while(1){
  16.         printf("1:push 2:pop 0:end : ");
  17.         scanf("%d", &resp); 
  18.  
  19.         if(!resp) break;
  20.  
  21.         switch(resp){
  22.              case 1: 
  23.                 printf("push : "); 
  24.                 scanf("%d", &data); 
  25.                 push(data);
  26.                 break;
  27.             case 2: 
  28.                 pop();
  29.                 break;
  30.         }
  31.         printf("sp=%d\n", sp);
  32.     }	
  33.  
  34.     printf("\n");
  35.     for(int i=0; i<sp; i++){
  36.         printf("stack[%d]=%d\n", i, stack[i]);
  37.     }
  38.  
  39.     return 0;
  40. }
  41.  
  42. void push(int value)
  43. {
  44.     if(sp >= SIZE){  
  45.         printf("スタックが満杯で入りませんでした\n");
  46.     } else {
  47.         stack[sp++] = value; 
  48.     }
  49. }
  50.  
  51. int pop(void)
  52. {
  53.     if(sp <= 0){ 
  54.         printf("スタックが空で取り出せませんでした\n");
  55.         return 0;  
  56.     } else {
  57.         return stack[--sp]; 
  58.     }
  59. }
Success #stdin #stdout 0.01s 5324KB
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stdout
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1:push 2:pop 0:end : push : sp=1
1:push 2:pop 0:end : push : sp=2
1:push 2:pop 0:end : push : sp=3
1:push 2:pop 0:end : sp=2
1:push 2:pop 0:end : sp=1
1:push 2:pop 0:end : sp=0
1:push 2:pop 0:end :
https://ideone.com/SyJIhp
language:
C (gcc 8.3)
created:
16 days ago
visibility:
public

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