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Cod sursa(job #272352)
#include<fstream.h>
#include<stdio.h>
#include<iostream.h>
#define MAX 1024
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int d[MAX],lcs[MAX][MAX],x[MAX],y[MAX],n,m,k,h,i;
int main()
{ f>>n>>m;
for(k=1;k<=n;k++) f>>x[k];
for(h=1;h<=m;h++) f>>y[h];
for(k=1;k<=n;k++)
for(h=1;h<=m;h++)
if(x[k]==y[h])
lcs[k][h]=1+lcs[k-1][h-1];
else
if(lcs[k-1][h]>lcs[k][h-1])
lcs[k][h]=lcs[k-1][h];
else
lcs[k][h]=lcs[k][h-1];
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--;
g<<i<<endl;
for(k=i-1;k>=0;k--) g<<d[k]<<' ';
return 0;
}