發送短信 : Evaluating the Gilbert-Varshamov bound for constrained systems

 _    _     _____    __   _    _    _      _____  
| \  / ||  |  ___|| | || | || | || | ||   / ___// 
|  \/  ||  | ||__   | '--' || | || | ||   \___ \\ 
| .  . ||  | ||__   | .--. || | \\_/ ||   /    // 
|_|\/|_||  |_____|| |_|| |_||  \____//   /____//  
`-`  `-`   `-----`  `-`  `-`    `---`   `-----`