Compilare: user.cpp: In function ‘int main()’: user.cpp:31:12: warning: unused variable ‘ln’ [-Wunused-variable] int n, ln=0; ^ user.cpp:83:15: warning: ‘bx’ may be used uninitialized in this function [-Wmaybe-uninitialized] bx+=C[i].x; ^ user.cpp:78:9: warning: ‘ax’ may be used uninitialized in this function [-Wmaybe-uninitialized] ay=m*ax+n; ^ user.cpp:76:13: warning: ‘det’ may be used uninitialized in this function [-Wmaybe-uninitialized] bx=(-m*n-det)/(1+m*m); ^