@[leozhudd](/space/show?uid=12938) 发题解去呀，别在这儿发
by 引领天下 @ 2017-06-18 09:11:36
https://www.luogu.org/space/show?uid=39863
by zhousirui070502 @ 2017-06-28 14:35:28
```cpp
#include<iostream>
#include<cstring>
using namespace std;
int k,m,n,x[101],y,i,j,s,l;
int main()
{
memset(x,-1,sizeof(x));
cin >>m>>n;
k=1;
for (i=1;i<=n;i++)
{
cin >>y;
for (j=1;j<=m;j++)
if (x[j]==y) l=1;
if (l==0)
{
if (k>3)
{
k--;
x[1]=x[2];
x[2]=x[3];
x[3]=-1;
}
x[k]=y;
s++;
k++;
}
l=0;
}
cout <<s<<endl;
return 0;
}
```
by 活的悟空 @ 2017-07-06 20:41:48
@[引领天下](/space/show?uid=39863) 我错了。。。。不太会用= =
by leozhudd @ 2017-07-18 01:08:17