mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
36 lines
703 B
C++
36 lines
703 B
C++
|
#include <cstdio>
|
||
|
#include <cstdlib>
|
||
|
#include <cstring>
|
||
|
#include <sstream>
|
||
|
using namespace std;
|
||
|
int cnt[1005];
|
||
|
int main()
|
||
|
{
|
||
|
int n,tmp;
|
||
|
while(scanf("%d",&n)==1&&n!=0)
|
||
|
{
|
||
|
memset(cnt,0,sizeof(int)*1005);
|
||
|
for(int i=0;i<n;i++)
|
||
|
{
|
||
|
scanf("%d",&tmp);
|
||
|
++cnt[tmp];
|
||
|
}
|
||
|
int c=0;
|
||
|
ostringstream ostr;
|
||
|
for(int i=0;i<1005;i++)
|
||
|
{
|
||
|
if(cnt[i])
|
||
|
{
|
||
|
++c;
|
||
|
ostr<<i<<" ";
|
||
|
}
|
||
|
}
|
||
|
printf("%d\n",c);
|
||
|
string ans=ostr.str();
|
||
|
ans.replace(ans.begin()+ans.size()-1,ans.end(),"\0");
|
||
|
printf("%s\n\n",ans.c_str());
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|