Compilare: main.cpp: In function 'int main()': main.cpp:77:16: warning: unused variable 'dist_ob' [-Wunused-variable] double dist_ob = get_dist (0,0,B.x,B.y); ^~~~~~~ main.cpp:78:16: warning: unused variable 'dist_oa' [-Wunused-variable] double dist_oa = get_dist (0,0,A.x,A.y); ^~~~~~~ main.cpp:79:16: warning: unused variable 'dist_ab' [-Wunused-variable] double dist_ab = get_dist (A.x,A.y,B.x,B.y); ^~~~~~~ main.cpp:142:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<ans.size();i++) ~^~~~~~~~~~~