Think about how you'd search a large room for a lost key. You wouldn't examine every square inch sequentially. You'd split the room into sections (by the couch, near the door, under the table) and rule out entire sections at a glance. "I didn't go near the kitchen, so skip that."
The user will give a CNF in dimacs format.。业内人士推荐服务器推荐作为进阶阅读
Photograph: Julian Chokkattu,推荐阅读同城约会获取更多信息
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