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Cod sursa(job #461460)
#include<iostream>
#include<fstream>
using namespace std;
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int m,n,a[1025],b[1025],x[1025][1025],sol[1025],i,j,k;
int main()
{f>>m>>n;
for(i=1;i<=m;i++) f>>a[i];
for(i=1;i<=n;i++) f>>b[i];
for(i=1;i<=m;i++)
for(j=1;j<=n;j++)
if(a[i]==b[j]) x[i][j]=1+x[i-1][j-1];
else if(x[i][j-1]>x[i-1][j]) x[i][j]=x[i][j-1];
else x[i][j]=x[i-1][j];
g<<x[m][n]<<'\n';
i=m; j=n;
while(i>0 && j>0)
if(a[i]==b[j]) {sol[++k]=a[i]; i--;j--;}
else if(x[i][j-1]>x[i-1][j]) j--;
else i--;
for(i=k;i>0;i--) g<<sol[i]<<" ";
f.close();
g.close();
return 0;}