Compilare: user.cpp: In function ‘int main()’: user.cpp:28:15: warning: variable ‘x3’ set but not used [-Wunused-but-set-variable] int x1,x2,x3,y1,y2,y3,directie; ^~ user.cpp:57:9: warning: ‘y3’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(st>dr) ^~