library_checker/graph/
general_matching.rs1#[doc(no_inline)]
2pub use competitive::graph::GeneralMatching;
3use competitive::prelude::*;
4
5#[verify::library_checker("general_matching")]
6pub fn general_matching(reader: impl Read, mut writer: impl Write) {
7 let s = read_all_unchecked(reader);
8 let mut scanner = Scanner::new(&s);
9 scan!(scanner, n, m, uv: [(usize, usize); m]);
10 let mut gm = GeneralMatching::from_edges(n, &uv);
11 let matching = gm.maximum_matching();
12 writeln!(writer, "{}", matching.len()).ok();
13 for (u, v) in matching {
14 writeln!(writer, "{} {}", u, v).ok();
15 }
16}