scanrs/
lib.rs

1use std::io;
2use std::str::FromStr;
3
4/* Scan a number */
5
6pub fn scann<T: FromStr>() -> T where <T as FromStr>::Err: std::fmt::Debug {
7    let mut number = String::new();
8
9    io::stdin().read_line(&mut number).expect("IO error");
10
11    number.trim().parse::<T>().expect("Input error")
12}
13
14/* Scan a list of elements (Whitespace separated) */
15
16pub fn scanvec<T: FromStr>() -> Vec<T> where <T as FromStr>::Err: std::fmt::Debug {
17    let mut vec = String::new();
18    
19    io::stdin().read_line(&mut vec).expect("IO error");
20
21    let vec = vec
22        .split_whitespace()
23        .map(|x| x.parse::<T>().expect("Parse error"))
24        .collect::<Vec<T>>();
25
26    vec
27}
28
29/* Scan a string */
30
31pub fn scanln() -> String {
32    let mut string = String::new();
33    
34    io::stdin().read_line(&mut string).expect("IO ERROR");
35
36    let trim: &[_] = &['\n', '\r'];
37    string.trim_end_matches(trim).to_owned()
38}
scanrs/lib.rs

scanrs/
lib.rs
