Compilare: main.cpp: In function 'void bfs(int)': main.cpp:36:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void bkt(int)': main.cpp:54:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (k == vecx.size()) ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=1; j<=vecx.size(); j++) ~^~~~~~~~~~~~~ main.cpp:98:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<vecx.size(); j++) ~^~~~~~~~~~~~