Compilare: main.cpp: In function 'int bellmanford()': main.cpp:28:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (int i = 0 ; i < v[nod].size () ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:60:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 60 | for (int i = 1 ; i <= n ; i++) | ^~~ main.cpp:63:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 63 | if (bellmanford()) | ^~