Compilare: main.cpp: In function 'int main()': main.cpp:78:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < adj[curN].size(); i ++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:89:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < rev[curN].size(); i ++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:99:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ord.size(); i ++) ~~^~~~~~~~~~~~