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Cod sursa(job #705603)
#include<fstream>
using namespace std;
ifstream in("cmlsc.in");
ofstream out("cmlsc.out");
int d[1024],lcs[1024][1024],n,m,j,k,h,x[1024],y[1024],i;
int main(){
in>>n>>m;
for(i=1;i<=n;i++)
in>>x[i];
for(i=1;i<=m;i++)
in>>y[i];
for(i=1;i<=n;i++){
for(int j=1;j<=m;j++)
if(x[i]==y[j])
lcs[i][j]=1+lcs[i-1][j-1];
else
if(lcs[i-1][j]>lcs[i][j-1])
lcs[i][j]=lcs[i-1][j];
else lcs[i][j]=lcs[i][j-1];
}
out<<lcs[n][m]<<'\n';
for(i=0,k=n,h=m;lcs[k][h];)
if(x[k]==y[h]){
d[i++]=x[k];
k--;
h--;
}
else if(lcs[k][h]==lcs[k-1][h])
k--;
else h--;
for(k=i-1;k>=0;k--)
out<<d[k]<<' ';
return 0;
}