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Cod sursa(job #384136)
#include<fstream>
using namespace std;
int main()
{
int v[100000],l[100000],p[100000],n,i,j,poz;
ifstream fin("scmax.in");
ofstream fout("scmax.out");
fin>>n;
for(i=1;i<=n;i++)
fin>>v[i];
l[n]=1;
p[n]=-1;
for(i=n-1;i>0;--i)
{
poz=0;
for(j=i+1;j<=n;j++)
if(v[j]>v[i])
if(poz==0)
poz=j,p[i]=poz;
else
if(l[j]>l[poz])
poz=j,p[i]=poz;
if(poz==0)
l[i]=1,p[i]=-1;
else
l[i]=l[poz]+1;
}
poz=1;
for(i=2;i<=n;i++)
if(l[i]>l[poz])
poz=i;
i=poz;
fout<<l[poz]<<endl;
while(i!=-1)
{
fout<<v[i]<<" ";
i=p[i];
}
return 0;
}