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library_checker/linear_algebra/
matrix_rank.rs

1use competitive::prelude::*;
2#[doc(no_inline)]
3pub use competitive::{algebra::AddMulOperation, math::Matrix, num::montgomery::MInt998244353};
4
5#[verify::library_checker("matrix_rank")]
6pub fn matrix_rank(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, a: [[MInt998244353; m]; n]);
10    let mut a = Matrix::<AddMulOperation<_>>::from_vec(a);
11    let rank = a.rank();
12    writeln!(writer, "{}", rank).ok();
13}