Compilare: user.cpp: In function ‘int main()’: user.cpp:18:11: warning: unused variable ‘permxg’ [-Wunused-variable] int permxg=xg; ^ user.cpp:19:9: warning: unused variable ‘permyg’ [-Wunused-variable] int permyg=yg; ^ user.cpp:20:11: warning: unused variable ‘permxp’ [-Wunused-variable] int permxp=xp; ^ user.cpp:21:10: warning: unused variable ‘permyp’ [-Wunused-variable] int permyp=yp; ^ user.cpp:31:9: warning: unused variable ‘osszeg’ [-Wunused-variable] int osszeg=0; ^