Update bit.md

thinkings/bit.md

@@ -194,7 +194,8 @@ class Solution:
 
 - [number-of-1-bits](https://leetcode-cn.com/problems/number-of-1-bits/)
 - [counting-bits](https://leetcode-cn.com/problems/counting-bits/)
-- [reverse-bits](https://leetcode-cn.com/problems/reverse-bits/)
+- [190. 颠倒二进制位](https://leetcode-cn.com/problems/reverse-bits/)（简单）
+- [1072. 按列翻转得到最大值等行数](https://leetcode-cn.com/problems/flip-columns-for-maximum-number-of-equal-rows/)（中等）
 
 
 更多题解可以访问我的LeetCode题解仓库：https://github.com/azl397985856/leetcode  。 目前已经30K star啦。