LeetCode:Find the Town Judge(Python3实现)

题目描述 In a town, there are N people labelled from 1 to N. There is a rumor that one of these people is secretly the town judge. If the town judge exists, then: 1.The town judge trusts nobody. 2.Everybody (except for the town judge) trusts the town judge. 3.There is exactly one person that satisfies