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Cod sursa(job #735481)
#include <fstream>
#include <cstdlib>
#include <iterator>
#include <algorithm>
#define N_MAX 1031
using namespace std;
int v[3][N_MAX];
int dp[N_MAX][N_MAX];
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=1; i <= v[0][0]; ++i)
in>>v[0][i];
for(i=1; i <= v[1][0]; ++i)
in>>v[1][i];
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][j-1], dp[i-1][j]);
v[2][0]=dp[v[0][0]][v[1][0]];
for(i=v[0][0], j=v[1][0], k=v[2][0]; i && j; )
if( v[0][i] == v[1][j] )
v[2][k]=v[0][i], --k, --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;
}