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Cod sursa(job #280647)
#include<fstream.h>
#define xx 1025
ifstream fin("cmlsc.in");
ofstream fout("cmlsc.out");
int n,m,k,a[xx],b[xx],c[xx][xx],s[xx];
int main()
{
int i,j;
fin>>n>>m;
for(i=1;i<=n;i++)
fin>>a[i];
for(j=1;j<=m;j++)
fin>>b[j];
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
if(a[i]==b[j])
c[i][j]=c[i-1][j-1]+1;
else
c[i][j]=(c[i-1][j]>c[i][j-1] ? c[i-1][j] : c[i][j-1]);
for(i=n,j=m;i;)
if(a[i]==b[j])
s[++k]=a[i],i--,j--;
else
{
if(c[i-1][j]>c[i][j-1])
i--;
else
j--;
}
fout<<k<<'\n';
for(i=k;i>0;i--)
fout<<s[i]<<' ';
fout.close();
return 0;
}