Many constraint satisfaction problems involve synthesizing subgraphs that satisfy certain reachability constraints. This paper presents programs in Picat for four problems selected from the recent LP/CP programming competitions. The programs demonstrate the modeling capabilities of the Picat language and the solving efficiency of the cutting-edge SAT solvers empowered with effective encodings.

翻译：许多制约性满意度问题涉及综合满足某些可达性限制的子集,本文介绍了Picat对最近LP/CP编程竞赛中选定的四个问题的方案。 这些方案展示了Picat语言的建模能力,并解决了具有有效编码能力的尖端SAT解答器的效率问题。