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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct linked {
  5.     int n;
  6.     linked* prev;
  7.     linked* next;
  8. };
  9.  
  10. void deleteE(linked* elem) {
  11.     elem->prev->next = elem->next;
  12.     elem->next->prev = elem->prev;
  13.     free(elem);
  14.     return;
  15. }
  16.  
  17. linked* lstinit(int n) {
  18.     linked* elem = (linked*)malloc(sizeof(linked));
  19.     elem->n = n;
  20.     elem->prev = elem;
  21.     elem->next = elem;
  22.     return elem;
  23. }
  24.  
  25. linked* push(linked* elem, int n) {
  26.     linked* newe = (linked*)malloc(sizeof(linked));
  27.     newe->n = n;
  28.     newe->prev = elem;
  29.     newe->next = elem->next;
  30.     newe->next->prev = newe;
  31.     newe->prev->next = newe;
  32.     return newe;
  33. }
  34.  
  35. void removelst(linked* elem) {
  36.     elem->prev->next = NULL;
  37.     while(elem->next != NULL) {
  38.         elem = elem->next;
  39.         free(elem->prev);
  40.     }
  41.     free(elem);
  42. }
  43.  
  44. int main() {
  45.     int k = 10;
  46.     linked* first = lstinit(0);
  47.     linked* last = first;
  48.     for(int i=1;i<k;i++) {
  49.     	last = push(last, i);
  50. 	}
  51.     // 연결 끊기
  52.     deleteE(first->next);
  53.     cout << first->next->n << endl;
  54.     // 리스트 삭제
  55.     removelst(first);
  56.     cout << first->next->n;
  57. 	return 0;
  58. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/6DRH2f
링크드리스트
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
secret

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