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Cod sursa(job #765619)
#include<fstream>
using namespace std;
FILE *f,*g;
int maxi,i,n,j,max1,b[100001],a[100001];
int main()
{f=fopen("scmax.in","r");
g=fopen("scmax.out","w");
fscanf(f,"%d",&n);
for(i=1;i<=n;++i)
fscanf(f,"%d",&a[i]);
b[n]=1;
for(i=n-1;i>=1;--i)
{max1=0;
for(j=i+1;j<=n;++j)
if(a[j]>a[i]&&max1<b[j])
max1=b[j];
b[i]=max1+1;
if(b[i]>maxi)
maxi=b[i];
}
fprintf(g,"%d\n",maxi);
for(i=1;i<=n;++i)
if(b[i]==maxi)
{fprintf(g,"%d ",a[i]);
maxi--;
}
return 0;
}