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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("スタックが空で取り出せませんでした\n");
  51. 		return 0;
  52. 	}else{
  53. 		return stack[--sp];
  54. 	}
  55. }
Success #stdin #stdout 0.01s 5320KB
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1:push  2:pop 0:end : push :sp=1
1:push  2:pop 0:end : sp=0
1:push  2:pop 0:end :
https://ideone.com/JxCHeX
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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