Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:31:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < graf[nod].size(); ++i){ ^ user.cpp: In function ‘void arbPM(int)’: user.cpp:39:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < graf[nod].size(); ++i){ ^ user.cpp:59:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < graf[nodD].size(); ++i){ ^ user.cpp:60:21: warning: unused variable ‘sec’ [-Wunused-variable] int sec = graf[nodD][i].second; ^ user.cpp: In function ‘void parcurgereEuleriana(int)’: user.cpp:72:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < apm[nod].size(); ++i){ ^