This is a LEETCODE problem solution set
name of a problem dir constructs from at most three parts
- lc, means this problem is from leetcode (link: http://leetcode.com)
- number, means the number index of this problem in leetcode
- language or mark, means by which this solution written, if is empty, means by rust, 'py' means 'python', 'go' means 'go', but 'real' as a mark when I messed the number index with another problem, I use 'real' to critical this is the real solution of the problem.
lc75_py lc74_real