Compilare: main.cpp: In function 'int* BFS(int)': main.cpp:25:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void afisare(std::vector<int>)': main.cpp:41:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<t.size();i++) ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:70:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<p.size();i++) ~^~~~~~~~~ main.cpp:75:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<p.size();i++) ~^~~~~~~~~