#[allow(unused_imports)] use std::cmp::*; #[allow(unused_imports)] use std::collections::*; use std::io::{Write, BufWriter}; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes.by_ref().map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr,) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::>() }; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); } impl Change for T { fn chmax(&mut self, x: T) { if *self < x { *self = x; } } fn chmin(&mut self, x: T) { if *self > x { *self = x; } } } /* #[cfg(x86_64)] fn bit_conv(a: u32, b: u32) -> u64 { use std::arch::x86_64::*; unsafe { let a = _mm_set_epi32(0, 0, 0, a as i32); let b = _mm_set_epi32(0, 0, 0, b as i32); let prod = _mm_clmulepi64_si128(a, b, 0); (_mm_extract_epi32(prod, 1) as u32 as u64) << 32 | _mm_extract_epi32(prod, 0) as u32 as u64 } } #[cfg(not(x86_64))]*/ fn bit_conv(a: u32, b: u32) -> u64 { let mut res = 0; for i in 0..32 { if (a & 1 << i) != 0 { res ^= (b as u64) << i; } } res } // https://yukicoder.me/problems/no/1901 (4) // アダマール変換 -> 点ごとの積 -> アダマール変換 -> 2^n で割る をすればよく、 // そのために各点で n+1 整数係数の 32 次未満・64 次未満の多項式を持ちたい。 // これは 32bit 整数・64bit 整数を n+1 個持つ方針でできる。 // 計算量は O(2^n n^2)、ただし _mm_clmulepi64_si128 を 2^n (n^2/2 + O(n)) 回呼ぶ。 fn main() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););} #[allow(unused)] macro_rules! putvec { ($v:expr) => { for i in 0..$v.len() { puts!("{}{}", $v[i], if i + 1 == $v.len() {"\n"} else {" "}); } } } input! { n: usize, a: [[i32; 32]; 1 << n], b: [[i32; 32]; 1 << n], } let mut x = vec![[0u32; 32]; 1 << n]; let mut y = vec![[0u32; 32]; 1 << n]; for i in 0..1 << n { for j in 0..32 { if a[i][j] == 1 { x[i][j] = 1; } } for j in 0..32 { if b[i][j] == 1 { y[i][j] = 1; } } } for i in 0..n { for bits in 0..1 << n { if (bits & 1 << i) != 0 { continue; } for u in 0..32 { let p = x[bits][u]; let q = x[bits | 1 << i][u]; x[bits][u] = p.wrapping_add(q); x[bits | 1 << i][u] = p.wrapping_sub(q); let p = y[bits][u]; let q = y[bits | 1 << i][u]; y[bits][u] = p.wrapping_add(q); y[bits | 1 << i][u] = p.wrapping_sub(q); } } } let mut prod = vec![[0u32; 63]; 1 << n]; for bits in 0..1 << n { for i in 0..32 { for j in 0..32 { prod[bits][i + j] = prod[bits][i + j].wrapping_add(x[bits][i].wrapping_mul(y[bits][j])); } } } for i in 0..n { for bits in 0..1 << n { if (bits & 1 << i) != 0 { continue; } for u in 0..63 { let p = prod[bits][u]; let q = prod[bits | 1 << i][u]; prod[bits][u] = p.wrapping_add(q); prod[bits | 1 << i][u] = p.wrapping_sub(q); } } } for v in &mut prod { for j in 0..63 { v[j] = (v[j] >> n) & 1; } putvec!(v); } }