Counting models for a two conjunctive formula (2-CF) |$F$|⁠, a problem known as |$\sharp $|2Sat, is a classic |$\sharp $|P complete problem. Given a 2-CF |$F$| as input, its constraint graph |$G$| is built. If |$G$| is acyclic, then |$\sharp $|2Sat(⁠|$F$|⁠) can be computed efficiently. In this paper, we address the case when |$G$| has cycles.

中文翻译：

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求解♯2SAT的自底向上算法

为两个联合公式（2-CF）| $ F $ |⁠计算模型，这个问题称为| $ \ sharp $ | 2 Sat是经典| $ \ sharp $ | P完全问题。给定2-CF | $ F $ | 作为输入，其约束图| $ G $ | 建成。如果| $ G $ | 是非循环的，则| $ \ sharp $ | 2卫星（⁠| $ F $ |⁠）可以有效地计算出来。在本文中，我们处理当| $ G $ |时的情况。有周期。