leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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1721.cpp (384B)

      1 class Solution {
      2   public:
      3     ListNode *swapNodes(ListNode *head, int k) {
      4         ListNode *tmp = head, *first;
      5         while (--k)
      6             tmp = tmp->next;
      7         first = tmp;
      8 
      9         ListNode *second = head;
     10         tmp = tmp->next;
     11         while (tmp)
     12             tmp = tmp->next, second = second->next;
     13         swap(first->val, second->val);
     14         return head;
     15     }
     16 };