Create 0083-remove-duplicates-from-sorted-list.kt

Author: a93a

kotlin/0083-remove-duplicates-from-sorted-list.kt

@@ -0,0 +1,26 @@
+/**
+ * Example:
+ * var li = ListNode(5)
+ * var v = li.`val`
+ * Definition for singly-linked list.
+ * class ListNode(var `val`: Int) {
+ *     var next: ListNode? = null
+ * }
+ */
+class Solution {
+    fun deleteDuplicates(head: ListNode?): ListNode? {
+        var dummy = ListNode(Integer.MAX_VALUE, head)
+        var prev = dummy
+        var current = head
+        
+        while(current != null) {
+            if(current.`val` == prev.`val`)
+                prev.next = current.next
+            else 
+                prev = current
+            current = current.next
+        }
+
+        return dummy.next
+    }
+}