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Cod sursa(job #715416)
#include<fstream>
using namespace std;
#define nmax 1024
int M,n,a[nmax],b[nmax],m[nmax][nmax],c[nmax],cont;
int main()
{
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
f>>M>>n;
for(int i=1;i<=M;i++)
f>>a[i];
for(int j=1;j<=n;j++)
f>>b[j];
for(int i=1;i<=M;i++)
for(int j=1;j<=n;j++)
if(a[i]==b[j])
m[i][j]=m[i-1][j-1]+1;
else
m[i][j]=max(m[i][j-1],m[i-1][j]);
int i=M,j=n;
cont=0;
while(i!=0)
if(a[i]==b[j])
{
c[++cont]=a[i];
i--;
j--;
}
else
if(m[i-1][j]<m[i][j-1])
j--;
else
i--;
g<<cont<<"\n";
for(int i=cont;i>=1;i--)
g<<c[i]<<" ";
return 0;
}