No Idea!

  • + 0 comments

    N,M=map(int,input().split()) l=list(map(int,input().split())) s1=set(map(int,input().split())) s2=set(map(int,input().split())) hapiness=0 for i in l: if i in s1: hapiness += 1 elif i in s2: hapiness -= 1

    print(hapiness)