發送短信 : On semicomplete multipartite digraphs whose king sets are semicomplete digraphs

  ______     ___      ______    ______    _  _   
 /_   _//   / _ \\   /_   _//  /_   _//  | \| || 
 `-| |,-   | / \ ||    | ||     -| ||-   |  ' || 
   | ||    | \_/ ||   _| ||     _| ||_   | .  || 
   |_||     \___//   /__//     /_____//  |_|\_|| 
   `-`'     `---`    `--`      `-----`   `-` -`