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  1. #include <stdio.h>
  2. #define SIZE 5
  3. int stack[SIZE];
  4. int sp;
  5. void push(int value);
  6. int pop(void);
  7. int main(void) {
  8. 	sp=0;
  9. 	int resp,data;
  10.  
  11. 	while(1){
  12. 		printf("1:push 2:pop 0:end\n");
  13. 		scanf("%d",&resp);
  14. 		if(!resp) break;
  15. 		switch(resp){
  16. 			case 1: printf("push:");scanf("%d",&data);
  17. 			push(data);
  18. 			break;
  19. 			case 2: pop();
  20. 			break;
  21. 		}
  22. 		printf("sp=%d\n",sp);
  23. 	}
  24. 	printf("\n");
  25. 	for(int i=0;i<sp;i++){
  26. 		printf("stack[%d]=%d\n",i,stack[i]);
  27. 	}
  28. 	return 0;
  29. }
  30. void push(int value)
  31. {if(sp>=SIZE){
  32. 	printf("スタックが満杯で入りませんでした\n");
  33. 	}else{
  34. 		stack[sp++]=value;
  35. 	}
  36. }
  37. int pop(void)
  38. {
  39. 	if(sp<=0){
  40. 		printf("スタックが空で取り出せませんでした\n");
  41. 		return 0;
  42. 	}else{
  43. 		return stack[--sp];
  44. 	}
  45. }
Success #stdin #stdout 0s 5288KB
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1
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1
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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
sp=1
1:push 2:pop 0:end

stack[0]=2
https://ideone.com/lE2nyn
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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