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:
Read full article，更多细节参见搜狗输入法下载
Reporting by Chance Townsend, Caitlin Welsh, Sam Haysom, Amanda Yeo, Shannon Connellan, Cecily Mauran, Mike Pearl, and Adam Rosenberg contributed to this article.，这一点在旺商聊官方下载中也有详细论述
Now scientists are directly linking the uncontrolled rocket re-entry to a plume of lithium measured less than 100km above Earth.
Что думаешь? Оцени!