Compilare: user.cpp: In function ‘bool check(int, int, int)’: user.cpp:27:11: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable] point tmp; tmp.x = x0; tmp.y = y0; ^ user.cpp: In function ‘int main()’: user.cpp:75:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j + (1 << step) <= Bucket[curBucket].size() && check(x0, y0, Bucket[curBucket][j + (1 << step) - 1])) ^