結果
問題 | No.1246 ANDORゲーム(max) |
ユーザー |
|
提出日時 | 2020-10-15 00:19:32 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 313 ms / 2,000 ms |
コード長 | 3,177 bytes |
コンパイル時間 | 13,129 ms |
コンパイル使用メモリ | 379,272 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-20 19:34:08 |
合計ジャッジ時間 | 18,876 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 31 |
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/0ba42c7ca36cd29d0ac8macro_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, [graph1; $len:expr]) => {{let mut g = vec![vec![]; $len];let ab = read_value!($next, [(usize1, usize1)]);for (a, b) in ab {g[a].push(b);g[b].push(a);}g}};($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, [ $t:tt ]) => {{let len = read_value!($next, usize);read_value!($next, [$t; len])}};($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));}#[allow(unused)]macro_rules! debug {($($format:tt)*) => (write!(std::io::stderr(), $($format)*).unwrap());}#[allow(unused)]macro_rules! debugln {($($format:tt)*) => (writeln!(std::io::stderr(), $($format)*).unwrap());}// The author read the editorial.// Tags: dp, naive-dp, naive-turns-out-to-be-fastfn solve() {let out = std::io::stdout();let mut out = BufWriter::new(out.lock());macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}input! {n: usize, t: i64,a: [i64; n],}const INF: i64 = 1 << 50;let mut hm = HashMap::new();hm.insert(t, 0);for &a in &a {let mut nxt: HashMap<i64, i64> = HashMap::new();for (k, v) in hm {// orlet nv = v + (k | a) - k;let r = nxt.entry(k | a).or_insert(-INF);if *r < nv {*r = nv;}// andlet nv = v + k - (k & a);let r = nxt.entry(k & a).or_insert(-INF);if *r < nv {*r = nv;}}hm = nxt;}let ma = hm.values().max().unwrap();puts!("{}\n", ma);}fn main() {// In order to avoid potential stack overflow, spawn a new thread.let stack_size = 104_857_600; // 100 MBlet thd = std::thread::Builder::new().stack_size(stack_size);thd.spawn(|| solve()).unwrap().join().unwrap();}