1. 求有限集上给定关系的自反、对称和传递闭包。（有两种求解方法，只做一种为A，两种都做为B）

2. 求有限集上等价关系的数目。（有两种求解方法，只做一种为A，两种都做为B）

3. 求解商集，输入集合和等价关系，求相应的商集。（C）



注意：题目类型分为A，B，C三类，其中A为基本题，完成A类题目可达到设计的基本要求，其他均为加分题，并按字母顺序分数增加越高。 -A demand for a given finite set of reflexive, symmetric and transitive closure. (There are two solution method, only one is A, two are used as B)

Find the number of equivalence relations on a finite set. (There are two solution method, only one is A, two are used as B)

3 Solving the quotient set of input sets and equivalence relations, find the corresponding quotient set. (C)



Note: topic types are divided into three categories A, B, C, where A is the basic question, to complete the Class A subject to meet the design requirements, the other are the bonus, in alphabetical order the higher the score increases.