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Cod sursa(job #520693)
#include<fstream>
using namespace std;
int a[100003],lungime[100003],pozitii[100003],interval[100003];
int nr=1,i,n,poz,maxim;
ifstream f("scmax.in");
ofstream g("scmax.out");
int cautarebinara(int x)
{
int st=0,dr,m;
dr=nr;
while(st<=dr)
{
m=(st+dr)/2;
if(a[interval[m]]<x&&a[interval[m+1]]>=x)
return m;
else
if(a[interval[m]]>x)
dr=m-1;
else
st=m+1;
}
return nr;
}
void afiseaza(int x)
{
if(pozitii[x]!=0)
afiseaza(pozitii[x]);
g<<a[x]<<" ";
}
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
interval[0]=0;
interval[1]=lungime[1]=1;
for(i=2;i<=n;i++)
{
poz=cautarebinara(a[i]);
pozitii[i]=interval[poz];
lungime[i]=poz+1;
interval[poz+1]=i;
if(nr<poz+1)
nr=poz+1;
}
for(i=1;i<=n;i++)
if(lungime[i]>maxim)
{
maxim=lungime[i];
poz=i;
}
g<<maxim<<"\n";
afiseaza(poz);
return 0;
}