Eroare de compilare: main.cpp: In function 'void read()': main.cpp:12:5: error: reference to 'cin' is ambiguous 12 | cin>>a>>b; | ^~~ In file included from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:75, from main.cpp:2: /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:5:10: note: 'std::ifstream cin' 5 | ifstream cin("password1.in"); | ^~~ main.cpp: In function 'void solve()': main.cpp:22:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i=0;i<a.size();i++) { | ~^~~~~~~~~ main.cpp:29:17: error: reference to 'cout' is ambiguous 29 | cout<<"impossible"; | ^~~~ /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:6:10: note: 'std::ofstream cout' 6 | ofstream cout("password1.out"); | ^~~~ main.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i=0;i<a.size();i++) { | ~^~~~~~~~~ main.cpp:51:5: error: reference to 'cout' is ambiguous 51 | cout<<stk; | ^~~~ /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:6:10: note: 'std::ofstream cout' 6 | ofstream cout("password1.out"); | ^~~~ Non zero exit status: 1