Compilare: main.cpp: In function 'int bellmanFord(int)': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(i = 0; i < v[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp:41:12: warning: unused variable 'j' [-Wunused-variable] 41 | int i, j, nod; | ^ main.cpp:67:5: warning: control reaches end of non-void function [-Wreturn-type] 67 | } | ^