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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. #define MAX 10
  5.  
  6. typedef struct pilha {
  7.     int qnt;
  8.     int dados[MAX];
  9. } Pilha;
  10. Pilha* cria() {
  11.     Pilha *p = malloc(sizeof(Pilha));
  12.     if (p != NULL) {
  13.         p->qnt = 0;
  14.     }
  15.     return p;
  16. }
  17. void insere(Pilha *p, int valor) {
  18.     p->dados[p->qnt] = valor;
  19.     p->qnt++;
  20. }
  21. void exibe(Pilha *p) {
  22.     for (int i = 0; i < p->qnt; i++)
  23.         printf("%3d", p->dados[i]);
  24. }
  25. Pilha* inverte(Pilha *p) {
  26.     Pilha *outra = cria();
  27.     while (p->qnt > 0) {
  28.         outra->dados[outra->qnt] = p->dados[p->qnt - 1];
  29.         p->qnt--;
  30.         outra->qnt++;
  31.     }
  32.     return outra;
  33. }
  34. int main() {
  35.     Pilha *p = cria();
  36.     insere(p, 32);
  37.     insere(p, 45);
  38.     insere(p, 78);
  39.     exibe(p);
  40.     p = inverte(p);
  41.     printf("\n");
  42.     exibe(p);
  43. }
Success #stdin #stdout 0s 2300KB
comments (?)
stdin 
Standard input is empty
stdout 
 32 45 78
 78 45 32
https://ideone.com/c26tTe
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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