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Cod sursa(job #918968)
#include <fstream>
using namespace std;
int a[1025],b[1025],v[1025][1025],s[1025],ct,n,m;;
void citire()
{ int i;
ifstream f("cmlsc.in");
f>>m>>n;
for(i=1;i<=m;i++)
f>>a[i];
for(i=1;i<=n;i++)
f>>b[i];
f.close();
}
void solve()
{ int i,j;
for(i=1;i<=m;i++)
for(j=1;j<=n;j++)
if(a[i]==b[j])
v[i][j]=1+v[i-1][j-1];
else
{
if(v[i-1][j]>v[i][j-1])
v[i][j]=v[i-1][j];
else
v[i][j]=v[i][j-1];
}
i=m; j=n;
while(i && j)
if(a[i]==b[j])
{
ct++;
s[ct]=a[i];
i--; j--;
}
else
{
if(v[i-1][j]<v[i][j-1])
j--;
else
i--;
}
}
void afisare()
{ int i;
ofstream g("cmlsc.out");
g<<ct<<'\n';
for(i=ct;i>=1;i--)
g<<s[i]<<" ";
g.close();
}
int main()
{
citire();
solve();
afisare();
return 0;
}