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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) p->qnt = 0;
  13.     return p;
  14. }
  15. void insere(Pilha *p, int valor) {
  16.     p->dados[p->qnt] = valor;
  17.     p->qnt++;
  18. }
  19. void exibe(Pilha *p) {
  20.     for (int i = 0; i < p->qnt; i++) printf("%3d", p->dados[i]);
  21. }
  22. Pilha* inverte(Pilha *p) {
  23.     Pilha *outra = cria();
  24.     while (p->qnt > 0) {
  25.         outra->dados[outra->qnt] = p->dados[p->qnt - 1];
  26.         p->qnt--;
  27.         outra->qnt++;
  28.     }
  29.     return outra;
  30. }
  31. int main() {
  32.     Pilha *p = cria();
  33.     insere(p, 32);
  34.     insere(p, 45);
  35.     insere(p, 78);
  36.     exibe(p);
  37.     p = inverte(p);
  38.     printf("\n");
  39.     exibe(p);
  40. }
  41.  
  42. //https://pt.stackoverflow.com/q/171352/101
Success #stdin #stdout 0s 4296KB
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stdin
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Standard input is empty
stdout
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 32 45 78
 78 45 32
https://ideone.com/17g67X
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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