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Cod sursa(job #961552)
#include<fstream>
using namespace std;
ifstream f("scmax.in");
ofstream g("scmax.out");
int a[10005],x[10005],t[10005],m,n,i,j,k,u,p,s;
void afis(int k)
{
if(k!=0)
{
afis(t[k]);
g<<a[k]<<" ";
}
}
int main ()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
x[1]=s=1;
for(i=2;i<=n;i++)
{
p=1;
u=s;
while(p<=u)
{
m=(p+u)/2;
if(a[i]>a[x[m]]) p=m+1;
else u=m-1;
}
if(p>s) s++;
x[p]=i;
t[i]=x[p-1];
}
g<<s<<"\n";
afis(x[s]);
return 0;
}