Compilare: main.cpp: In function 'void elim_extra(int)': main.cpp:15:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < fii[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~~ main.cpp:18:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (fii[nod].size() > j) ~~~~~~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:92:7: warning: 'rad' may be used uninitialized in this function [-Wmaybe-uninitialized] calc(rad, 3, s[rad]); ~~~~^~~~~~~~~~~~~~~~