Compilare: main.cpp:12:26: warning: integer overflow in expression [-Woverflow] const int oo = (1 << 31) - 1; ~~~~~~~~~~^~~ main.cpp: In function 'int dij(int)': main.cpp:50:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < L[poz].size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:78:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^