Compilare: user.cpp: In function ‘void hamiltonCircuit(int)’: user.cpp:144:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1 ; i < s[1].size(); ++i)//rup un arc din circuit ca sa-mi bag nodul ^ user.cpp:169:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1 ; i < s[1].size(); ++i) { ^ user.cpp: In function ‘void solve()’: user.cpp:208:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < s[1].size() - 1; ++i) ^