I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
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此前,苹果已经官宣将于 3 月 4 日晚上 10 点发布新品。而从最新的消息来看,苹果很有可能采用一天发布一款新品节奏,以维持整周的热度。。同城约会是该领域的重要参考
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