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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.         if(!resp) break;
  17.  
  18.         switch(resp){
  19.             case 1:
  20.                 printf("push : ");
  21.                 scanf("%d", &data);
  22.                 push(data);
  23.                 break;
  24.             case 2:
  25.                 pop();
  26.                 break;
  27.         }
  28.  
  29.         printf("sp=%d\n", sp);
  30.     }
  31.  
  32.     printf("\n");
  33.     for(int i = 0; i < sp; i++)
  34.         printf("stack[%d]=%d \n", i, stack[i]);
  35.  
  36.     return 0;
  37. }
  38.  
  39. void push(int value)
  40. {
  41.     if(sp >= SIZE){
  42.         printf("スタックが満杯で入りませんでした\n");
  43.     } else {
  44.         stack[sp++] = value;
  45.     }
  46. }
  47.  
  48. int pop(void)
  49. {
  50.     if(sp <= 0){
  51.         printf("スタックが空で取り出せませんでした\n");
  52.         return 0;
  53.     } else {
  54.         return stack[--sp];
  55.     }
  56. }
Success #stdin #stdout 0.01s 5316KB
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language:

						
C (gcc 8.3)

					

					

						
created:
								
						
12 days ago

					

					

						
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