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Cod sursa(job #560061)
#include<fstream.h>
int a[1024][1024];
int main ()
{
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
int M,N,v[1026],w[1026],i,j,max,c[1026],k=0;
f>>M>>N;
for(i=1;i<=M;i++) f>>v[i];
for(i=1;i<=N;i++) f>>w[i];
for(i=1;i<=M;i++) a[0][i]=0;
for(i=1;i<=N;i++) a[i][0]=0;
for(i=1;i<=N;i++){
for(j=1;j<=M;j++)
{
if(w[i]==v[j]) a[i][j]=a[i-1][j-1]+1;
else{
if(a[i][j-1]>a[i-1][j]) max=a[i][j-1];
else max=a[i-1][j];
a[i][j]=max;
}
}
}
g<<a[N][M]<<"\n";
i=N;j=M;
while(i>0 && j>0)
{
if(w[i]==v[j]) {c[++k]=w[i];i--;j--;}
else if(a[i][j]==a[i-1][j]) i--;
else j--;
}
for(i=k;i>=1;i--) g<<c[i]<<" ";
f.close();
g.close();
return 0;
}