Compilare: main.cpp: In function 'void dijkstra()': main.cpp:63:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<varf>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (j=0; j<G[vfmin].size(); j++) | ~^~~~~~~~~~~~~~~~ main.cpp:51:6: warning: unused variable 'i' [-Wunused-variable] 51 | {int i, j, vfmin, gasit; | ^ main.cpp:51:19: warning: unused variable 'gasit' [-Wunused-variable] 51 | {int i, j, vfmin, gasit; | ^~~~~