Compilare: main.cpp: In function 'int main()': main.cpp:25:6: warning: unused variable 'i' [-Wunused-variable] 25 | {int i; | ^ main.cpp: In function 'bool BellmanFord()': main.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<varf>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (i = 0; i < G[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:69:8: warning: unused variable 'j' [-Wunused-variable] 69 | {int i,j,cnt; | ^ main.cpp:69:10: warning: unused variable 'cnt' [-Wunused-variable] 69 | {int i,j,cnt; | ^~~