Compilare: main.cpp: In function 'int main()': main.cpp:52:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i <v[nod].size(); i++) ~~^~~~~~~~~~~~~~ main.cpp:3:20: warning: integer overflow in expression [-Woverflow] #define inf (1<<31)-1 ~~~~~~~^~ main.cpp:66:20: note: in expansion of macro 'inf' minim[i] = inf; ^~~ main.cpp:74:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < w[nod].size(); i++) ~~^~~~~~~~~~~~~~~