Compilare: main.cpp: In function 'void bellman(da)': main.cpp:41:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < g[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:85:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < g[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~