Compilare: user.cpp: In function ‘void Make_L()’: user.cpp:35:9: warning: unused variable ‘aux’ [-Wunused-variable] int aux = 0; ^ user.cpp: In function ‘void Eulerian()’: user.cpp:78:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < POZ_R.size(); ++j) { ^ user.cpp:80:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pozitia < i || pozitia + 1 > Solution.size()) continue; ^