Compilare: main.cpp: In function 'bool bellmanford()': main.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<varf>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(i=0;i<G[x].size();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:87:9: warning: unused variable 'cnt' [-Wunused-variable] 87 | int cnt,j; | ^~~ main.cpp:87:13: warning: unused variable 'j' [-Wunused-variable] 87 | int cnt,j; | ^