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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct node {
  5. 	node *next;
  6. 	int val;
  7. };
  8.  
  9. typedef node* ptr_list;
  10.  
  11. ptr_list rmv_mul(ptr_list p,int n){
  12.     if(p==NULL){
  13.       return(p);
  14.     }
  15.     if (p->val%n==0){
  16.         ptr_list tmp = p->next;
  17.         delete(p);
  18.         return rmv_mul(tmp, n); // <<== Pass tmp, not p; p is deleted
  19.     } else {
  20.         p->next = rmv_mul(p->next, n); // <<== Assign to p->next
  21.         return (p);
  22.     }
  23. }
  24.  
  25. int main() {
  26. 	ptr_list p = new node;
  27. 	p->val = 5;
  28. 	p->next = new node;
  29. 	p->next->val = 3;
  30. 	p->next->next = new node;
  31. 	p->next->next->val = 10;
  32. 	p->next->next->next = nullptr;
  33. 	ptr_list tmp = p;
  34. 	cout << "before" << endl;
  35. 	while (tmp) {
  36. 		cout << tmp->val << endl;
  37. 		tmp=tmp->next;
  38. 	}
  39. 	cout << "after" << endl;
  40. 	tmp = rmv_mul(p, 5);
  41. 	while (tmp) {
  42. 		cout << tmp->val << endl;
  43. 		tmp=tmp->next;
  44. 	}
  45. 	return 0;
  46. }
Success #stdin #stdout 0s 3468KB
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stdin
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Standard input is empty
stdout
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before
5
3
10
after
3
https://ideone.com/Jy5Nq2
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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