An implementation of rock, paper, scissors that mostly cheats. (part 1)

rock_paper_sinners.rs

use std::io;
use std::io::Write;


fn prompt() -> String {

    let input = io::stdin();

    println!("Welcome to Rock, Paper, and Sinners!");

    print!("Please enter rock/paper/sinners:");

    io::stdout().flush().ok().expect("flush failed");


    let mut guess = String::new();

    input.read_line(&mut guess)
         .ok()
         .expect("Failed to read line");

    guess // note the lack of semi-collon
}

fn main() {
    println!("Guess the number!");

    println!("You guessed: {}", prompt());
}