Eroare de compilare: main.cpp: In function 'int main()': main.cpp:49:5: error: reference to 'cin' is ambiguous 49 | cin >> n >> m >> s; | ^~~ 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("bfs.in"); | ^~~ main.cpp:52:12: error: reference to 'cin' is ambiguous 52 | 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("bfs.in"); | ^~~ main.cpp:66:13: error: reference to 'cout' is ambiguous 66 | cout << "-1 "; | ^~~~ /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("bfs.out"); | ^~~~ main.cpp:69:13: error: reference to 'cout' is ambiguous 69 | cout << d[i] << ' '; | ^~~~ /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("bfs.out"); | ^~~~ main.cpp:48:15: warning: unused variable 'cnt' [-Wunused-variable] 48 | int n, m, cnt = 0, s; | ^~~ Non zero exit status: 1