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Cod sursa(job #597120)
#include<fstream>
using namespace std;
int x[100000],lis[100000],next[100000];
int main ()
{
int n,i,j,maxim,poz;
ifstream fin("scmax.in");
fin>>n;
for(i=1; i<=n; i++)
fin>>x[i];
fin.close();
ofstream fout("scmax.out");
//maxim = poz = 0;
lis[n]=1;
next[n]=n+1;
for(i=n-1; i>0; i--)
{
maxim=0;
poz=n+1;
for(j=i+1; j<=n; j++)
{
if(x[j]>x[i] && maxim < lis[j])
{
maxim=lis[j];
poz=j;
}
}
lis[i]=maxim+1;
next[i]=poz;
}
maxim = poz = 0;
for(i=1; i<=n; i++)
if(maxim<lis[i])
{
maxim=lis[i];
poz=i;
}
fout<<maxim<<"\n";
while(poz!=n+1)
{
fout<<x[poz]<<" ";
poz=next[poz];
}
fout.close();
return 0;
}