Compilare: user.cpp: In function ‘int main()’: user.cpp:42:21: warning: unused variable ‘bx’ [-Wunused-variable] int bx, by; ^ user.cpp:42:25: warning: unused variable ‘by’ [-Wunused-variable] int bx, by; ^ user.cpp:90:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < drum.size(); ++i) { ^ user.cpp:26:11: warning: unused variable ‘p’ [-Wunused-variable] Point p; ^ user.cpp:62:9: warning: unused variable ‘size’ [-Wunused-variable] int size = ll; ^ user.cpp:105:21: warning: ‘pmin.Point::x’ may be used uninitialized in this function [-Wmaybe-uninitialized] int lp = k * (x - 1) + y - 1; ^ user.cpp:64:11: note: ‘pmin.Point::x’ was declared here Point pmin; ^