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Cod sursa(job #879718)
#include<fstream>
using namespace std;
int main()
{unsigned int n,i,m,a[1024],b[1024],c[1024],nc=0,j,k;
ifstream fin("cmlsc.in");
ofstream fout("cmlsc.out");
fin>>n>>m;
for(i=0;i<n;i++)
fin>>a[i];
for(j=0;j<m;j++)
fin>>b[j];
for (i=0;i<n;i++)
{for(j=0;j<m;j++)
if (a[i]==b[j])
c[nc++]=b[j];
}
fout<<nc<<'\n';
for(k=0;k<nc;k++)
fout<<c[k]<<" ";
return 0;
}