July Bootcamp (Day 31) - Status Compression

Foreword

        此为"League of Heroes Algorithms: Algorithm Training", please refer to: Knowledge Planet: League of Legends Algorithms- June Bootcamp.After joining the planet, you can enjoy the rights of the star owner CSDN pay column free reading.
    Welcome everyone to actively express their opinions in the comment area. You can say everything you know, and you can say everything. You can develop the habit of brushing questions every day. You can also publish high-quality problem-solving reports for the community to appreciate together and attract a wave of yourself.core fans.
I hope you can think for yourself first, if you really have no idea, then look at the following algorithm ideas, if you have ideas but can't write them, you can refer to the codes of other people in the circle of friends, there is always one that suits you, pay attention to him, whichever is longer and the supply is shorter.
     Today's training content is: State compression
     State compression generally refers to the state that originally needs to be mapped to a multi-dimensional array, and is compressed by hexadecimal.into a number, which facilitates breadth-first search or depth-first search or dynamic programming.