add: 合并两个有序链表

2020-05-01 17:25:01 +08:00
parent ecab5b8850
commit b665d6595e
4 changed files with 73 additions and 3 deletions
--- a/src/list/merge-k-sorted-lists.js
+++ b/src/list/merge-k-sorted-lists.js
@ -4,8 +4,8 @@
 * @param {ListNode[]} right
 */
 export const merge = (left, right) => {
-  const head = {}
-  let current = head
+  const dummyHead = {}
+  let current = dummyHead
  while (left !== null && right !== null) {
    if (left.val < right.val) {
      if (left.val !== null) {
@ -28,7 +28,7 @@ export const merge = (left, right) => {
    current.next = left
  }

-  return head.next
+  return dummyHead.next
 }

 /**