Compilare: main.cpp: In function 'int main()': main.cpp:40:25: warning: unused variable 'sx' [-Wunused-variable] long long xx,yy,sx,sy,x,y,d; ^~ main.cpp:40:28: warning: unused variable 'sy' [-Wunused-variable] long long xx,yy,sx,sy,x,y,d; ^~ main.cpp:40:31: warning: unused variable 'x' [-Wunused-variable] long long xx,yy,sx,sy,x,y,d; ^ main.cpp:40:33: warning: unused variable 'y' [-Wunused-variable] long long xx,yy,sx,sy,x,y,d; ^