Compilare: main.cpp: In function 'int main()': main.cpp:12:15: warning: unused variable 'x' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^ main.cpp:12:19: warning: unused variable 'y' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^ main.cpp:12:23: warning: unused variable 'xc' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^~ main.cpp:12:28: warning: unused variable 'yc' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^~ main.cpp:12:33: warning: unused variable 'xf' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^~ main.cpp:12:38: warning: unused variable 'yf' [-Wunused-variable] 12 | long long x , y , xc , yc , xf , yf; | ^~