結果
| 問題 | No.753 最強王者決定戦 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-12-19 21:53:08 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 351 ms / 1,000 ms |
| コード長 | 3,831 bytes |
| コンパイル時間 | 15,562 ms |
| コンパイル使用メモリ | 389,088 KB |
| 実行使用メモリ | 9,984 KB |
| 最終ジャッジ日時 | 2024-09-25 08:09:33 |
| 合計ジャッジ時間 | 15,406 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 4 |
ソースコード
#[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 {
(source = $s:expr, $($r:tt)*) => {
let mut iter = $s.split_whitespace();
let mut next = || { iter.next().unwrap() };
input_inner!{next, $($r)*}
};
($($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),* )) => {
( $(read_value!($next, $t)),* )
};
($next:expr, [ $t:tt ; $len:expr ]) => {
(0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
};
($next:expr, chars) => {
read_value!($next, String).chars().collect::<Vec<char>>()
};
($next:expr, usize1) => {
read_value!($next, usize) - 1
};
($next:expr, $t:ty) => {
$next().parse::<$t>().expect("Parse error")
};
}
/// Generates an Iterator over subsets of univ, in the descending order.
/// Verified by: http://judge.u-aizu.ac.jp/onlinejudge/review.jsp?rid=3050308
struct SubsetIter { bits: Option<usize>, univ: usize }
impl Iterator for SubsetIter {
type Item = usize;
fn next(&mut self) -> Option<usize> {
match self.bits {
None => None,
Some(bits) => {
let ans = bits;
self.bits =
if bits == 0 { None }
else { Some((bits - 1) & self.univ) };
Some(ans)
}
}
}
}
fn subsets(univ: usize) -> SubsetIter {
SubsetIter { bits: Some(univ), univ }
}
fn solve() {
let out = std::io::stdout();
let mut out = BufWriter::new(out.lock());
macro_rules! puts {
($format:expr) => (write!(out,$format).unwrap());
($format:expr, $($args:expr),+) => (write!(out,$format,$($args),*).unwrap())
}
let n = 16;
input! {
a: [[i32; n]; n]
}
let mut a = a;
for i in 0 .. n {
for j in i + 1 .. n {
a[j][i] = -a[i][j];
}
}
let mut dp = vec![vec![0i64; 1 << n]; n];
for i in 0 .. n {
dp[i][1usize.wrapping_shl(i as u32)] = 1;
}
let mut s = 1;
while s < n as u32 {
s *= 2;
for bits in 0 .. 1usize << n {
if bits.count_ones() != s { continue; }
for sub in subsets(bits) {
if sub.count_ones() != s / 2 { continue; }
let sub2 = bits - sub;
for i in 0 .. n {
if (sub & 1 << i) == 0 { continue; }
for j in 0 .. n {
if (sub2 & 1 << j) == 0 { continue; }
if a[i][j] == 1 {
dp[i][bits] += dp[i][sub] * dp[j][sub2];
}
}
}
}
}
}
for i in 0 .. n {
puts!("{}\n", dp[i][(1 << n) - 1] << (n - 1));
}
}
fn main() {
// In order to avoid potential stack overflow, spawn a new thread.
let stack_size = 104_857_600; // 100 MB
let thd = std::thread::Builder::new().stack_size(stack_size);
thd.spawn(|| solve()).unwrap().join().unwrap();
}