diff options
Diffstat (limited to 'other/odd_even_linke_list.cpp')
-rw-r--r-- | other/odd_even_linke_list.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/other/odd_even_linke_list.cpp b/other/odd_even_linke_list.cpp new file mode 100644 index 0000000..4ee4bac --- /dev/null +++ b/other/odd_even_linke_list.cpp @@ -0,0 +1,22 @@ +#include "leetcode.h" + +class Solution { +public: + ListNode *oddEvenList(ListNode *head) { + ListNode *odd = NULL, *headOdd = NULL, *even = NULL, *headEven = NULL; + if (!head || !head->next || !head->next->next) + return head; + odd = head; + headOdd = odd; + even = head->next; + headEven = even; + while (even && even->next) { + odd->next = odd->next->next; + even->next = even->next->next; + odd = odd->next; + even = even->next; + } + odd->next = headEven; + return headOdd; + } +}; |