Eroare de compilare: user.cpp: In function ‘void subsecv(std::string, std::string)’: user.cpp:14:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a.size(); i++) ^ user.cpp:16:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0 ; j < b.size(); j++) ^ user.cpp: In function ‘int main()’: user.cpp:53:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz <0 || poz>=v[i].size()) { ^ user.cpp:58:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == n && it->size() > sol){ ^ user.cpp:65:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (it->size() > sol){ ^ user.cpp: At global scope: user.cpp:73:5: error: ‘g’ does not name a type g << sol << '\n'; ^ user.cpp:75:5: error: ‘f’ does not name a type f.close(); ^ user.cpp:76:5: error: ‘g’ does not name a type g.close(); ^ user.cpp:78:5: error: expected unqualified-id before ‘return’ return 0; ^ user.cpp:80:1: error: expected declaration before ‘}’ token } ^