Compilare: main.cpp:11:23: warning: integer overflow in expression [-Woverflow] const int oo = (1<<31)-1 , NMAX = 50015; ~~~~~~~^~ main.cpp: In function 'int main()': main.cpp:29:10: warning: statement has no effect [-Wunused-value] for(i;i<=n;i++) ^ main.cpp:39:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<graf[nodcurent].size();i++) ~^~~~~~~~~~~~~~~~~~~~~~~