Compilare: main.cpp: In function 'int main()': main.cpp:55:13: warning: unused variable 'cost' [-Wunused-variable] 55 | int cost = e.cost; | ^~~~ main.cpp:58:13: warning: unused variable 'r1' [-Wunused-variable] 58 | int r1 = radacina(x); | ^~ main.cpp:59:13: warning: unused variable 'r2' [-Wunused-variable] 59 | int r2 = radacina(y); | ^~