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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: printf("push : "); scanf("%d", &data);
  23.    		        push(data);
  24.    		        break;
  25.    	    case 2: pop();
  26.    	            break;
  27.    	}
  28.    	printf("sp=%d\n",sp);
  29.    }
  30.    printf("\n");
  31.    for(int i=0; i<sp; i++){
  32.    	    printf("stack[%d]=%d \n", i, stack[i]);
  33.    }
  34.  
  35.    return 0;
  36. }
  37.  
  38. void push(int value)
  39. {
  40. 	 if(sp  >=  SIZE){
  41. 	 	   printf("スタックが満杯で入りませんでした\n");
  42. 	 }else{
  43. 	 	stack[sp++] = value;
  44. 	 }
  45. }
  46.  
  47. int pop(void)
  48. {
  49. 	if(sp<= 0){
  50. 		printf("スタックが空で入りませんでした\n");
  51. 		return 0;
  52. 	}else{
  53. 		return stack[--sp];
  54. 	}
  55. }
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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1
4
1
3
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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 : 
stack[0]=4 
stack[1]=3
https://ideone.com/6LEvEf
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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