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Cod sursa(job #277033)
#include<fstream.h>
int main ()
{
int a[100], b[100], c[100];
int i, j, n, m, OK, OK1, k, q, ind1[100], ind2[100];
ifstream f("cmlsc.in");
ofstream g("cmlsc.out");
f>>n>>m;
for(i=1;i<=n;i++)
f>>a[i];
for(i=1;i<=m;i++)
f>>b[i];
k=0;
for(i=1;i<=n;i++)
{
OK=0;
for(j=1;j<=n&&OK==0;j++)
if(a[i]==b[j])
OK=1;
if(OK==1)
{OK1=0;
for(q=1;q<=k-1;q++)
if(c[q]==a[i])
OK1=1;
if(OK1==0)
if(ind1[k-1]<=i&&ind2[k-1]<=j)
{
k++;
ind1[k]=i;
ind2[k]=j;
c[k]=a[i];
}
}
if(k>0)
{
g<<k<<'\n';
for(i=1;i<=k;i++)
g<<c[i];
}
else
g<<0;}
f.close();
g.close();
return 0;}