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Cod sursa(job #555312)
#include<cstdio>
#include<algorithm>
#define maxn 1<<17
using namespace std;
int n,v[maxn],poz[maxn],best[maxn],search(int),maxx;
void init(),solve(),show(int);
int main()
{
init();
solve();
show(best[maxx]);
}
void init()
{
freopen("scmax.in","r",stdin);
freopen("scmax.out","w",stdout);
scanf("%d",&n);
for(int i=1;i<=n;i++) scanf("%d",&v[i]);
}
void solve()
{
int q;
for(int i=1;i<=n;i++)
{
q=search(i);
best[q+1]=i;
maxx = max(maxx, q+1);
poz[i]=best[q];
}
printf("%d\n",maxx);
}
int search(int pos)
{
int l=0;
for(int i=1<<17;i>0;i/=2)
if(i+l <= maxx && v[best[i+l]]<v[pos])
l+=i;
return l;
}
void show(int p)
{
if(p>0)
{
show(poz[p]);
printf("%d ",v[p]);
}
}