Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:35:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < word.size(); j++) ^ user.cpp:48:31: error: ‘sort’ was not declared in this scope sort (A.begin(), A.end(), cmp); ^ user.cpp:51:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < A.size(); i++) ^ user.cpp:56:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < A.size(); i++) ^ user.cpp:28:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets (str, MAX_LENGTH, f); ^