FastInput - 快速读取输入！

FastInput旨在简化从stdin读取已知输入，主要在竞技编程环境中使用。该包公开了FastInput结构，其中包含读取和解析基于行的输入的方法。FastInput不对输入进行验证，并使用不安全的操作和缓冲区来达到极高的性能。

示例

以下示例创建一个新的FastInput并读取一些输入

// The `next` method comes from the `FastParse` trait.
use fast_input::{FastInput, FastParse, Str};

let input = FastInput::new();
let first_line = input.next_line();

// Type arguments can often be omitted as rust is awesome,
// specified here for clarity.
let (a, b): (u32, u32) = input.next();

println!("First line was: {}, a + b = {}", first_line, a + b);

// Read the next line and parse it.
let age: u32 = input.next_parsed();

// Read a line of integers and collect into a `Vec`
let numbers: Vec<u32> = input.next_as_iter().collect();

// `FastInput` has implementations of `FastParse` up to quintuples.
let (a, b, c, d, e) = input.next();
let sum: i32 = 0i32 + a + b + c + d + e;


// The `Str` type can be used to mix string slices with parsed data.
let (name, age): (Str, u8) = input.next();
// `Str` can be dereferenced into its contained string slice.
let name: &str = *name;

// Read all remaining lines and print them
for line in input.lines() {
    println!("{}", line);
}