```cpp
#include<cstdio>
#include<iostream>
using namespace std;
int ram[23333],bl[10];
int main(){
int m,n;
cin>>m>>n;
int k=0,w,tot=0,m1=1;
for (int i=1;i<=n;i++)
{
cin>>w;
if (bl[w]==1) continue;
bl[w]=1;
tot++;k++;
if (k>m){
bl[ram[m1]]=0;
ram[m1]=w;
m1++;
if (m1>m) m1=1;
k=m1;
continue;
}
ram[k]=w;
}
cout<<tot;
return 0;
}
```
by lantianbefit @ 2018-11-02 07:41:31
0可能是单词
by lzpcsdf @ 2018-11-11 19:02:32