Open jmpark0118 opened 4 years ago
if __name__ == '__main__':
eng = int(input())
eng_sub = set(map(int, input().split()))
fre = int(input())
fre_sub = set(map(int, input().split()))
intersection_sub = eng_sub.intersection(fre_sub)
print(len(intersection_sub))
출처 : https://www.hackerrank.com/challenges/py-set-intersection-operation/problem