已解决，谢谢
by zi小眼聚光 @ 2019-01-10 19:16:21
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n,a[100010]={INT_MIN,INT_MIN},p,t=0,x;
cin>>n;
for(int i=1;i<=n;i++)
{
cin>>x;
int f=1;
for(int j=1;j<=t;j++)
if(x==a[j])
{
f=0;
break;
}
if(f==0)continue;
t++;
p=t;
while(x<a[p-1]&&p>=1)
{
a[p]=a[p-1];
p--;
}
a[p]=x;
}
cout<<t<<endl;
for(int i=1;i<=t;i++)
cout<<a[i]<<" ";
return 0;
}
by 3346962731SUN @ 2019-01-13 13:11:18
@[3346962731SUN](/space/show?uid=155513) 希望更丰富的展现？[使用Markdown](https://www.luogu.org/wiki/show?name=%E5%B8%AE%E5%8A%A9%EF%BC%9Amarkdown)
by Jayun @ 2019-01-26 19:37:16