From 351fb2e67cbc6c18084bedbf4abcbb17e9d7ac86 Mon Sep 17 00:00:00 2001
From: CyC2018 <1029579233@qq.com>
Date: Tue, 5 Mar 2019 18:32:42 +0800
Subject: [PATCH] auto commit

---
 docs/notes/Leetcode 题解.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/notes/Leetcode 题解.md b/docs/notes/Leetcode 题解.md
index f36e2b26..e172b7c5 100644
--- a/docs/notes/Leetcode 题解.md	
+++ b/docs/notes/Leetcode 题解.md	
@@ -403,6 +403,9 @@ public List<Integer> topKFrequent(int[] nums, int k) {
     }
     List<Integer> topK = new ArrayList<>();
     for (int i = buckets.length - 1; i >= 0 && topK.size() < k; i--) {
+        if (buckets[i] == null) {
+            continue;
+        }
         if (buckets[i].size() <= (k - topK.size())) {
             topK.addAll(buckets[i]);
         } else {