算法
(模拟)
Python 代码
n, m = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
ans = []
for x in a:
if x not in b:
ans.append(x)
for x in b:
if x not in a:
ans.append(x)
ans.sort()
print(*ans)