Compilare: main.cpp: In function 'int Bellman_Ford()': main.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:36:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'bool dijkstra()': main.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~