Eroare de compilare: main.cpp: In function 'void read()': main.cpp:17:5: error: reference to 'cin' is ambiguous 17 | cin >> N; | ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/10/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("adn.in"); | ^~~ main.cpp:22:9: error: reference to 'cin' is ambiguous 22 | cin >> words[i]; | ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/10/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("adn.in"); | ^~~ main.cpp: In function 'std::vector<std::__cxx11::basic_string<char> > preprocess(std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:64:43: warning: NULL used in arithmetic [-Wpointer-arith] 64 | for(int k = 0; words[j][k] != NULL; ++k){ | ^~~~ main.cpp:71:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | if(index == words[i].size()){ | ~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:171:9: error: reference to 'cout' is ambiguous 171 | cout << s; | ^~~~ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/10/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("adn.out"); | ^~~~ Non zero exit status: 1