做了个支付宝五福互换平台，来讨论下配对的问题吧

体验 http://wufu.ngrok.cc/

源码求 star https://github.com/donghouhe/3kuai8mao8

配对问题

• 有人可能用爱国福换友善福，另一个用友善福换爱国福，那就可以配成一对了，简化说明： A->B, B->A
• 以此类推,A->B, B->C, C->A 也可以配对了

求指导，目前我的配对代码是

from itertools import combinations
def check(iterPeople, n):
	result = []
	for peoples in iterPeople:
		iList, oList = [], []
		for people in peoples:
			iList.append(people['inFu']) #想要的福卡
			oList.append(people['outFu']) #给出的福卡
		iSet, oSet = set(iList), set(oList)
		if iSet == oSet and len(iSet) == n:
			result.append(peoples)
	return result

def matchResult(n):
	people = people # 登记需求的用户
	result = check(combinations(people, n), n)
	return result