Cod sursa(job #946970)
#include <cstdlib>
#include <fstream>
#include <iterator>
#include <algorithm>
using namespace std;
const int NMAX = 1031;
int v[3][NMAX];
int dp[NMAX][NMAX];
inline int _max(int x, int y) {return x >= y ? x : y;}
int main()
{
int i, j, k;
ifstream in("cmlsc.in");
ofstream out("cmlsc.out");
in >> v[0][0] >> v[1][0];
for(i = 0; i < 2; ++i)
{
for(j = 1; j <= v[i][0]; ++j)
{
in >> v[i][j];
}
}
for(i = 1; i <= v[0][0]; ++i)
{
for(j = 1; j <= v[1][0]; ++j)
{
if(v[0][i] == v[1][j]) dp[i][j] = 1 + dp[i - 1][j - 1];
else dp[i][j] = _max(dp[i - 1][j], dp[i][j - 1]);
}
}
k = v[2][0] = dp[i = v[0][0]][j = v[1][0]];
while(i && j)
{
if(v[0][i] == v[1][j])
{
v[2][k--] = v[0][i--];
--j;
}
else if(dp[i - 1][j] > dp[i][j - 1]) --i;
else --j;
}
out << v[2][0] << '\n';
copy(v[2] + 1, v[2] + v[2][0] + 1, ostream_iterator<int>(out, " "));
out << '\n';
return EXIT_SUCCESS;
}