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Cod sursa(job #768162)
#include <fstream>
using namespace std;
int n, m, i, j, a[1025], b[1025], dinamica[1025][1025];
int main()
{
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
f>>n>>m;
for(i=1; i<=n; i++)
{
f>>a[i];
}
for(j=1; j<=m; j++)
{
f>>b[j];
}
for(i=1; i<=n; i++)
{
for(j=1; j<=m; j++)
{
if(a[i]==b[j])
dinamica[i][j]=1+dinamica[i-1][j-1];
else
dinamica[i][j]=max(dinamica[i-1][j], dinamica[i][j-1]);
}
}
int k=0, sir[1400];
for(i=n; i>=1;)
{
for(j=m; j>=1;)
{
if(a[i]==b[j])
{
k++;
sir[k]=a[i];
i--;
j--;
}
else if(dinamica[i-1][j]<dinamica[i][j-1])
j--;
else
i--;
}
}
g<<k<<"\n";
for(i=k; i>=1; i--)
{
g<<sir[i]<<" ";
}
}