Compilare: main.cpp: In function 'void Liniarizare(int)': main.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<vec[nod].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'void rezolva(int)': main.cpp:99:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<vec[nod].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:121:11: warning: unused variable 'a' [-Wunused-variable] int x,a; ^