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Cod sursa(job #380851)
#include <fstream.h>
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int a[1025],b[1025],nr,sir[1025],i,j,n,m,d[1026][1026];
int main ()
{
f>>m>>n;
for(i=0;i<m;i++)
f>>a[i];
for(i=0;i<n;i++)
f>>b[i];
for(i=1;i<=m;i++)
for(j=1;j<=n;j++)
if(a[i]==b[j])
d[i][j]=1+d[i-1][j-1];
else
{
if(d[i-1][j]>d[i][j-1])
d[i][j]=d[i-1][j];
else
d[i][j]=d[i][j-1];
}
for(i=m,j=n;i>0;)
if(a[i]==b[j])
{
nr++;
sir[nr]=a[i];
i--,j--;
}
else
{
if(d[i-1][j]<d[i][j-1])
j--;
else
i--;
}
g<<nr<<'\n';
for(i=nr;i>0;i--)
g<<sir[i]<<' ';
g<<'\n';
f.close();
g.close();
return 0;
}