[백준 파이썬 1269번]대칭차집합★SET활용하기★VER2.0

VERSION 2.0

import sys

A_cnt , B_cnt = list(map(int,sys.stdin.readline().split()))

A = list(map(int,sys.stdin.readline().split()))
B = list(map(int,sys.stdin.readline().split()))

print(len(list(set(A)-set(B))) +len(list(set(B)-set(A))))
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VERSION 1.0

import sys

N = map(int , sys.stdin.readline().rstrip().split())
A = list(map(int, sys.stdin.readline().rstrip().split()))
B = list(map(int, sys.stdin.readline().rstrip().split()))
C = list(set(A)-set(B))
D = list(set(B)-set(A))
print(len(C)+ len(D))