Compilare: user.cpp: In function ‘int main()’: user.cpp:177:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.size(); ++ i) ^ user.cpp:178:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] cout << sol[i] << " \n"[i + 1 == sol.size()]; ^ user.cpp: In function ‘void findSol(int, int, bool)’: user.cpp:68:48: warning: ‘bestNode’ may be used uninitialized in this function [-Wmaybe-uninitialized] findSol(it, bestNode, bestNode > 0); ^