Eroare de compilare: main.cpp: In function 'int main()': main.cpp:52:10: error: reference to 'cin' is ambiguous int n; cin >> n; ^~~ main.cpp:7:10: note: candidates are: std::ifstream cin ifstream cin("algsort.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:56:5: error: reference to 'cin' is ambiguous cin >> a[i]; ^~~ main.cpp:7:10: note: candidates are: std::ifstream cin ifstream cin("algsort.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:61:5: error: reference to 'cout' is ambiguous cout << a[i] << " "; ^~~~ main.cpp:8:10: note: candidates are: std::ofstream cout ofstream cout("algsort.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ main.cpp:62:3: error: reference to 'cout' is ambiguous cout << "\n"; ^~~~ main.cpp:8:10: note: candidates are: std::ofstream cout ofstream cout("algsort.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ main.cpp: In function 'std::vector<int> merge_sort(std::vector<int>&)': main.cpp:49:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ Non zero exit status: 1