Compilare: main.cpp: In function 'void BFS()': main.cpp:27:9: warning: unused variable 'nod' [-Wunused-variable] 27 | int nod, cost, vin, a, b; | ^~~ main.cpp:27:14: warning: unused variable 'cost' [-Wunused-variable] 27 | int nod, cost, vin, a, b; | ^~~~ main.cpp:27:20: warning: unused variable 'vin' [-Wunused-variable] 27 | int nod, cost, vin, a, b; | ^~~ main.cpp:27:25: warning: unused variable 'a' [-Wunused-variable] 27 | int nod, cost, vin, a, b; | ^ main.cpp:27:28: warning: unused variable 'b' [-Wunused-variable] 27 | int nod, cost, vin, a, b; | ^