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Cod sursa(job #377374)
#include <stdio.h>
int n, v[100003], best[100003], p[100003], maxim, k, L[100003], nr;
void afis(int i)
{
if (p[i] > 0) afis(p[i]);
printf("%d ",v[i]);
}
int caut(int x)
{
int p=0, u=nr, m=(p+u)/2;
while (p<=u)
{
if (v[L[m]]<x && v[L[m+1]]>=x) return m;
else
if (v[L[m+1]]<x)
{
p=m+1;
m=(p+u)/2;
}
else
{
u=m-1;
m=(p+u)/2;
}
}
return nr;
}
int main()
{
freopen("scmax.in","r",stdin);
freopen("scmax.out","w",stdout);
int i, j, poz;
nr = 1;
scanf("%d",&n);
for (i=1; i<=n; i++)
scanf("%d",&v+i);
best[1]=L[1]=1;
L[0]=0;
for (i=2; i<=n; i++)
{
poz=caut(v[i]);
p[i]=L[poz];
best[i]=poz+1;
L[poz+1]=i;
if (nr<poz+1)
nr=poz+1;
}
maxim=0;
poz=0;
for (i=1; i<=n; i++)
if (maxim<best[i])
{
maxim=best[i];
poz=i;
}
printf("%d\n",maxim);
afis(poz);
return 0;
}