程序源码。通过编译，运行成功。原题：Astronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let the level of a star be an amount of the stars that are not higher and not to the right of the given star. Astronomers want to know the distribution of the levels of the stars. -procedures source. By compiling, running successfully. Original title : Astronomers often examine star maps where star s are represented by points on a plane and each st ar has Cartesian coordinates. Let the level of a star be an amount of the stars that are not higher and not to the right of the given star. Astronome rs want to know the distribution of the levels of the stars.