Compilare: main.cpp: In function 'bool bellmanford()': main.cpp:56:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<varf>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(i=0; i<G[x].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:74:12: warning: unused variable 'j' [-Wunused-variable] 74 | int i, j, cnt; | ^ main.cpp:74:15: warning: unused variable 'cnt' [-Wunused-variable] 74 | int i, j, cnt; | ^~~