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Cod sursa(job #723713)
#include<fstream>
#include<algorithm>
#include<vector>
using namespace std;
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int n,m,i,j,bst;
int a[1024],b[1024],sir[1024],d[1024][1024];
int main()
{
f>>m>>n;
for(i=1;i<=m;i++)
f>>a[i];
for(j=1;j<=n;j++)
f>>b[j];
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
d[i][j]=max(d[i-1][j], d[i][j-1]);
i=m;
j=n;
while(i)
if(a[i]==b[j])
{
sir[++bst]=a[i];
i--;
j--;
}
else
if(d[i-1][j]<d[i][j-1])
j--;
else
i--;
g<<bst<<"\n";
for(i=bst;i>=1;--i)
g<<sir[i]<<" ";
}