Compilare: user.cpp: In function ‘void solve()’: user.cpp:70:18: warning: variable ‘y1’ set but not used [-Wunused-but-set-variable] int x1,x2,x3,y1,y2,y3; ^ user.cpp:70:21: warning: variable ‘y2’ set but not used [-Wunused-but-set-variable] int x1,x2,x3,y1,y2,y3; ^ user.cpp:70:24: warning: variable ‘y3’ set but not used [-Wunused-but-set-variable] int x1,x2,x3,y1,y2,y3; ^