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Cod sursa(job #613207)
#include <iostream>
#include <fstream>
using namespace std;
int m,n;
int a[1026],b[1026],c[1026],q[1026][1026];
int k;
int max(int x, int y)
{
if (x>y)
return x;
else
return y;
}
int main()
{
ifstream fin("cmlsc.in");
ofstream fout("cmlsc.out");
fin>>m>>n;
for(int i=1;i<=m;i++)
fin>>a[i];
for(int i=1;i<=n;i++)
fin>>b[i];
for(int i=1;i<=m;i++)
for(int j=1;j<=n;j++)
if (a[i]!=b[j])
q[i][j]=max(q[i][j-1], q[i-1][j]);
else
{
q[i][j]=1+max(q[i][j-1], q[i-1][j]);
c[k]=b[j];
k++;
}
fout<<q[m][n]<<endl;
for (int i=0;i<k;i++)
fout<<c[i]<<" ";
fin.close();
fout.close();
return 0;
}