Create 147-insertion-sort-list.js

Author: everthis

147-insertion-sort-list.js

@@ -0,0 +1,32 @@
+/**
+ * Definition for singly-linked list.
+ * function ListNode(val) {
+ *     this.val = val;
+ *     this.next = null;
+ * }
+ */
+/**
+ * @param {ListNode} head
+ * @return {ListNode}
+ */
+const insertionSortList = function(head) {
+  const dummy = new ListNode()
+  dummy.next = head
+  let insert = dummy
+  let cur = head
+  while (cur && cur.next) {
+    if (cur.val < cur.next.val) {
+      cur = cur.next
+      continue
+    }
+    insert = dummy
+    while (insert.next.val < cur.next.val) {
+      insert = insert.next
+    }
+    const temp = cur.next
+    cur.next = temp.next
+    temp.next = insert.next
+    insert.next = temp
+  }
+  return dummy.next
+}