Compilare: user.cpp: In function ‘int levenshtein(std::vector<int>&, int)’: user.cpp:38:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j <= initial.size(); ++j) ^ user.cpp:42:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j <= initial.size(); ++j) ^ user.cpp: In function ‘int gigelfunction(std::vector<int>&, std::vector<std::map<int, int> >&)’: user.cpp:69:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < lookup.size(); ++i, ++j) ^ user.cpp:78:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (whereToAdd.size() < lettersToBeAdded){ ^ user.cpp:95:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; j < initial.size(); ++i, ++j) ^ user.cpp:103:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (whereToAdd.size() < lettersToBeAdded){ ^ user.cpp:118:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < initial.size(); i++) ^