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Cod sursa(job #674105)
#include<fstream>
using namespace std;
ifstream fin("cmlsc.in");
ofstream fout("cmlsc.out");
int M,N,A[1024],B[1024],tab[1024][1024],s[1024],k;
int maxim(int a, int b)
{
if(a>b) return a;
else return b;
}
int main()
{
int i,j;
fin>>M>>N;
for(i=1;i<=M;i++)
fin>>A[i];
for(i=1;i<=N;i++)
fin>>B[i];
for(i=1;i<=M;i++)
for(j=1;j<=N;j++)
if(A[i]==B[j])
tab[i][j]=tab[i-1][j-1]+1;
else
tab[i][j]=maxim(tab[i-1][j],tab[i][j-1]);
fout<<tab[M][N]<<endl;
i=M;
j=N;
while(i!=0)
{
if(A[i]==B[j])
{
s[++k]=A[i];
i--;
j--;
}
else
if(tab[i-1][j]<tab[i][j-1])
j--;
else
i--;
}
for(i=k;i>=1;i--)
fout<<s[i]<<' ';
return 0;
}