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Cod sursa(job #950407)
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("interclasari.in");
ofstream g("interclasari.out");
int k, n, sol=0, x, v[20000100];
int main()
{
f>>k;
for (int aux=1; aux<=k; aux++)
{
f>>n;
for (int i=1; i<=n; i++) f>>v[++sol];
}
g<<sol<<'\n';
sort(v+1, v+sol+1);
for (int i=1; i<=sol; i++) g<<v[i]<<' ';
f.close(); g.close();
return 0;
}