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Cod sursa(job #948213)
#include <fstream>
using namespace std;
ifstream f("scmax.in");
ofstream g("scmax.out");
int main()
{
long m=0,n,a[20000],l[20000],ma,i,j;
f>>n;
for(i=1;i<=n;i++)
{f>>a[i];l[i]=1;}
/* for(i=1;i<=n;i++)
{g<<a[i]<<" ";}g<<endl;
for(i=1;i<=n;i++) g<<l[i]<<" ";*/
for(i=n-1;i>=1;i--)
{
ma=0;
for(j=i+1;j<=n;j++)
if(ma<l[j]&&a[i]<a[j])
ma=l[j];
l[i]=ma+1;
}
ma=0;
for(i=1;i<=n;i++)
if(ma<l[i]) ma=l[i];
g<<ma<<endl;
for(i=1;i<=n;i++)
{
if(ma==l[i]) {g<<a[i]<<" ";ma--;}
}
}