Compilare: main.cpp: In function 'int main()': main.cpp:51:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < aux[i].size() - 1; j++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:62:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < G[nod].size(); i++) { ~~^~~~~~~~~~~~~~~ main.cpp:76:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < aux[i].size(); j++) { ~~^~~~~~~~~~~~~~~