Eroare de compilare: main.cpp: In function 'int main()': main.cpp:23:5: error: reference to 'cin' is ambiguous 23 | cin >> n >> m; | ^~~ In file included from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/12.2.1/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:6:10: note: 'std::ifstream cin' 6 | ifstream cin("dfs.in"); | ^~~ main.cpp:25:12: error: reference to 'cin' is ambiguous 25 | while (cin >> x >> y) { | ^~~ /usr/include/c++/12.2.1/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:6:10: note: 'std::ifstream cin' 6 | ifstream cin("dfs.in"); | ^~~ main.cpp:36:5: error: reference to 'cout' is ambiguous 36 | cout << cnt; | ^~~~ /usr/include/c++/12.2.1/iostream:61:18: note: candidates are: 'std::ostream std::cout' 61 | extern ostream cout; /// Linked to standard output | ^~~~ main.cpp:7:10: note: 'std::ofstream cout' 7 | ofstream cout("dfs.out"); | ^~~~ Non zero exit status: 1