Compilare: main.cpp: In function 'bool bellmanford()': main.cpp:68:20: 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:90:5: warning: this 'else' clause does not guard... [-Wmisleading-indentation] 90 | else | ^~~~ main.cpp:93:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else' 93 | fout<<'\n'; | ^~~~