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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. typedef struct lligada {
  5.     int valor;
  6.     struct lligada *prox;
  7. } *LInt;
  8.  
  9. void addHead (LInt *l, int val){
  10.     LInt newHead = malloc(sizeof(*newHead));
  11.     newHead->valor = val;
  12.     newHead->prox = *l;
  13.     *l = newHead;
  14. }
  15.  
  16. void print(LInt list){
  17.     LInt curr = list;
  18.     while (curr != NULL){
  19.         printf("%d -> ", curr->valor);
  20.         curr = curr->prox;
  21.     }
  22.     printf("NULL");
  23. }
  24.  
  25. int removeAll (LInt *l, int x){
  26.     int r = 0;
  27.     LInt pt = *l, ant = NULL;
  28.     while (pt != NULL){
  29.         if (pt -> valor == x){
  30.             if (ant == NULL){
  31.                 *l = pt->prox;
  32.             }
  33.             else {
  34.                 ant -> prox = pt -> prox;
  35.             }
  36.             LInt toDelete = pt;
  37.             pt = pt -> prox;
  38.             free(toDelete);
  39.             r++;
  40.         }
  41.         else {
  42.             ant = pt;
  43.             pt = pt -> prox;
  44.         }
  45.     }
  46.  
  47.     return r;
  48. }
  49.  
  50. int main() {
  51.     LInt list = NULL;
  52.     addHead(&list, 10);
  53.     addHead(&list, 20);
  54.     addHead(&list, 15);
  55.     addHead(&list, 10);
  56.     addHead(&list, 12);
  57.     addHead(&list, 10);
  58.     addHead(&list, 10);
  59.     addHead(&list, 13);
  60.     addHead(&list, 10);
  61.  
  62.     print(list);
  63.     int removed = removeAll(&list, 10);
  64.     printf("\nRemoved nodes: %d\n", removed);
  65.     print(list);
  66. }
  67.  
Success #stdin #stdout 0s 4180KB
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stdin
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Standard input is empty
stdout
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10 -> 13 -> 10 -> 10 -> 12 -> 10 -> 15 -> 20 -> 10 -> NULL
Removed nodes: 5
13 -> 12 -> 15 -> 20 -> NULL
https://ideone.com/Qi8zRL
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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