diff options
Diffstat (limited to 'swap_nodes_pairs.cpp')
-rw-r--r-- | swap_nodes_pairs.cpp | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/swap_nodes_pairs.cpp b/swap_nodes_pairs.cpp deleted file mode 100644 index 139c336..0000000 --- a/swap_nodes_pairs.cpp +++ /dev/null @@ -1,21 +0,0 @@ -// 24. Swap Nodes in Pairs -#include "leetcode.h" - -/* - * given a linked list, swap every two adjacent nodes and return - * its head. problem must be solved without modifying values - * in the list's nodes (ie only nodes themselves may be changed) - */ - -class Solution { -public: - ListNode *swapPairs(ListNode *head) { - if (!head || !head->next) - return head; - ListNode *tmp; - tmp = head->next; - head->next = swapPairs(head->next->next); - tmp->next = head; - return tmp; - } -}; |