Compilare: main.cpp: In function 'int main()': main.cpp:40:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < adj[i].size(); j++) ~~^~~~~~~~~~~~~~~ main.cpp:69:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < adj[i].size(); j++) ~~^~~~~~~~~~~~~~~ main.cpp:81:15: warning: 'node' may be used uninitialized in this function [-Wmaybe-uninitialized] bad[node] = 0; ~~~~~~~~~~^~~