readput

Fast and easy stdin input parsing for competitive programming in rust.

Usage

Note: The inputs can be on the same line, or not, it doesn't make a difference. They are separated by spaces or line breaks. Excess inputs are getting cached for the next read() call.

Create a Scanner

Create a new Scanner. (Only ASCII support for now)

use readput::AsciiScanner;
use readput::Scanner;

let mut cin = AsciiScanner::new();

Read a single value

Read a single value. For non std types use impl_cin_type!(type) before or use cin.read_cust_s(). Note: They also have to impl. FromStr and Debug.

let v: i128 = cin.read();

Read a tuple

Read a tuple with variable size and custom types. (Works with all types that impl. FromStr and Debug)

let (a, b, c): (String, i128, u32) = cin.read();
let (d, e): (i32, i32) = cin.read();

Read a vector of tuples

Read a vector of tuples. 3 is the number of tuples in the vector to read. (Works with all types that impl. FromStr and Debug)

let vec: Vec<(u32, String)> = cin.read_vec(3);

Read a vector of single values

Read a vector of single values. 3 is the number of elements to read. For non std types use impl_cin_type!(type) before or use cin.read_cust_v(). Note: They also have to impl. FromStr and Debug.

let vec: Vec<u32> = cin.read_vec(3);

Iterate over input

Iterate over input. This will iterate forever. (Blocks until new input is entered) For non std types use impl_cin_type!(type) before.

for (a, b) in cin.iter::<(String, u32)>() {
    println!("{} {}", a, b);
}