题解 | 机器翻译
机器翻译
https://www.nowcoder.com/practice/45ecfecd83104f37a685016361be504c
from collections import deque
M,N=map(int,input().split())
s=input().split()
a=deque([])
n=0
for i in s:
if i not in a:
if len(a)<M:
a.append(i)
else:
a.popleft()
a.append(i)
n+=1
print(n)
