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Cod sursa(job #929547)
#include<fstream>
using namespace std;
ifstream fin("scmax.in");
ofstream fout("scmax.out");
int best[100003],a[100003], maxx,sol=0,poz[100003],p;
int n;
void read()
{
fin>>n;
for(int i=1;i<=n;++i)
fin>>a[i];
}
void dinamic()
{
int i,j;
best[n]=1;
poz[n]=-1;
maxx=1; p=n;
for(i=n-1;i>=1;--i)
{
best[i]=1;
poz[i]=-1;
for(j=i+1;j<=n;++j)
if(a[i]<a[j] && best[i]<best[j]+1)
{
best[i]=best[j]+1;
poz[i]=j;
if(best[i]>maxx) maxx=best[i],p=i;
}
}
}
void constr()
{
int i;
i=p;
while(i!=-1)
{
fout<<a[i]<<" ";
i=poz[i];
}
}
int main()
{
read();
dinamic();
fout<<maxx<<'\n';
constr();
return 0;
}