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  1. #include <stdio.h>
  2. #define SIZE 5
  3. int stack[SIZE];
  4. int sp;
  5.  
  6. void push(int value);
  7. int pop(void);
  8. int main(void) {
  9. 	sp=0;
  10. 	int resp, data;
  11. 	while(1){
  12. 		printf("1:push 2:pop 0:end:");
  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. {
  32. 	if(sp>=SIZE){
  33. 		printf("スタックが満杯で入りませんでした\n");
  34. 	}else{
  35. 		stack[sp++]=value;
  36. 	}
  37. }
  38. int pop(void)
  39. {
  40. 	if(sp<=0){
  41. 		printf("スタックが空で取り出せませんでした\n");
  42. 		return 0;
  43. 	}else{
  44. 		return stack[--sp];
  45. 	}
  46. }
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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1
10
1
20
2
0
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]=10
https://ideone.com/ZzvBQX
language:
C (gcc 8.3)
created:
9 hours ago
visibility:
public

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