Compilare: main.cpp: In function 'bool Cuplaj(int)': main.cpp:19:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ~~^~~~~~~~~~~~~~~