Compilare: main.cpp: In function 'int main()': main.cpp:43:21: warning: unused variable 'lr' [-Wunused-variable] 43 | int lr = 0; | ^~ main.cpp:69:25: warning: unused variable 'lr' [-Wunused-variable] 69 | int lr = 0; | ^~ main.cpp:80:25: warning: unused variable 'lr' [-Wunused-variable] 80 | int lr = 0; | ^~ main.cpp:54:17: warning: unused variable 'nr' [-Wunused-variable] 54 | int nr = 0; | ^~