add python solution fot 0018.4sum

correct format.
2021-05-21 09:34:54 -04:00 · 2021-05-21 09:34:54 -04:00 · 8b862a548c
parent 767c7fdcca
commit 8b862a548c
1 changed files with 1 additions and 1 deletions
--- a/problems/0018.四数之和.md
+++ b/problems/0018.四数之和.md
@ -165,7 +165,7 @@ class Solution {
 ```

 Python：
-```python3
+```python

 class Solution(object):
    def fourSum(self, nums, target):