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Cod sursa(job #967823)
#include<fstream>
using namespace std;
const int MAXN=100010;
int n,lgmax,pozstart;
int v[MAXN],lg[MAXN],poz[MAXN];
void citire()
{
ifstream fin("scmax.in");
fin>>n;
for (int i=1;i<=n;++i)
fin>>v[i];
fin.close();
}
void rezolvare()
{
int i,j;
for (i=n;i>0;--i)
{
for (j=i+1,lg[i]=1,poz[i]=-1;j<=n;++j)
{
if (v[i]<v[j] && lg[i]<1+lg[j])
{
lg[i]=1+lg[j];
poz[i]=j;
}
if (lg[i]>lgmax)
{
lgmax=lg[i];
pozstart=i;
}
}
}
}
void afisare()
{
ofstream fout("scmax.out");
fout<<lgmax<<'\n';
int i=pozstart;
while (i<=n && i!=-1)
{
fout<<v[i]<<' ';
i=poz[i];
}
fout<<'\n';
fout.close();
}
int main()
{
citire();
rezolvare();
afisare();
return 0;
}