Eroare de compilare: user.cpp: In function ‘void Optiune1()’: user.cpp:58:26: error: ‘sort’ was not declared in this scope sort(a + 1, a + k + 1); ^ user.cpp:65:9: error: ‘fout’ was not declared in this scope fout << a[k] << "\n"; ^ user.cpp:70:9: error: ‘ap’ was not declared in this scope ap[a[i]]++; ^ user.cpp:73:13: error: ‘ap’ was not declared in this scope if (ap[i] == 1) nrDistincte++; ^ user.cpp:74:5: error: ‘fout’ was not declared in this scope fout << nrDistincte << "\n"; ^