Learning content : Huffman tree + play more school
The completion of the number of questions today (does not include multi-school) : 6
Today's reading situations : 12
Today's experience:
When will feel when reading, but some variations to brush the question, but find it hard to return to the nature of the problem.
Brush while reading problems can not pull down ah
Painter parentheses: https://www.cnblogs.com/zcb123456789/p/11305629.html
The maximum XOR team: https://www.cnblogs.com/zcb123456789/p/11302353.html