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Cod sursa(job #920538)
#include <fstream>
using namespace std;
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int x[1030],y[1030],n,m,i,k,j,lcs[1300][1300],d[1030];
int main()
{
f>>n>>m;
for(i=1;i<=n;i++) f>>x[i];
for(i=1;i<=m;i++) f>>y[i];
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
if(x[i]==y[j]) lcs[i][j]=1+lcs[i-1][j-1];
else
if(lcs[i-1][j]>lcs[i][j-1]) lcs[i][j]=lcs[i-1][j];
else lcs[i][j]=lcs[i][j-1];
g<<lcs[n][m]<<'\n';
for(k=0, i=n, j=m; lcs[i][j]; )
if(x[i]==y[j]) {d[k++]=x[i]; i--;j--;}
else if(lcs[i][j]==lcs[i-1][j]) i--;
else j--;
for(i=k-1;i>=0;i--) g<<d[i]<<' ';
f.close();
g.close();
return 0;
}