Compilare: user.cpp: In function ‘void ProcessPolygon()’: user.cpp:51:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ user.cpp:53:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &points[i].x, &points[i].y); ^ user.cpp: In function ‘void ProcessQueries()’: user.cpp:88:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] Point Q; scanf("%lf%lf", &Q.x, &Q.y); ^