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-rw-r--r--other/remove_nth_node.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/other/remove_nth_node.cpp b/other/remove_nth_node.cpp
new file mode 100644
index 0000000..38f8a72
--- /dev/null
+++ b/other/remove_nth_node.cpp
@@ -0,0 +1,18 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ ListNode *removeNthFromEnd(ListNode *head, int n) {
+ ListNode *fast = head, *slow = head;
+ for (int i = 0; i < n; i++)
+ fast = fast->next;
+ if (!fast)
+ return head->next;
+ while (fast->next) {
+ fast = fast->next;
+ slow = slow->next;
+ }
+ slow->next = slow->next->next;
+ return head;
+ }
+};