/*题意：判断两幅图是否同构 图中即判断图中环和链的个数是否相同 环和链是否一一相对应 利用并查集 一个集合中若人数num[]和拉手对手p[]相等 则为环，num[]==p[]+1则为链*/-/* The meaning of problems: to determine whether the two images with a composition that judge whether each of the corresponding figure rings and chains