Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v[nod].size(); i++) ^ user.cpp: In function ‘void bellman_ford()’: user.cpp:46:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v[nodin].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:94:27: warning: overflow in implicit constant conversion [-Woverflow] dmin[i][j]=inf; ^