結果
| 問題 |
No.1045 直方体大学
|
| コンテスト | |
| ユーザー |
ziita
|
| 提出日時 | 2020-05-02 14:21:18 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 390 ms / 2,000 ms |
| コード長 | 4,133 bytes |
| コンパイル時間 | 16,673 ms |
| コンパイル使用メモリ | 378,100 KB |
| 実行使用メモリ | 26,496 KB |
| 最終ジャッジ日時 | 2024-12-29 23:20:01 |
| 合計ジャッジ時間 | 21,152 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 17 |
ソースコード
#![allow(unused_imports)]
#![allow(non_snake_case, unused)]
use std::cmp::*;
use std::collections::*;
use std::ops::*;
// https://atcoder.jp/contests/hokudai-hitachi2019-1/submissions/10518254
macro_rules! eprint {
($($t:tt)*) => {{
use ::std::io::Write;
let _ = write!(::std::io::stderr(), $($t)*);
}};
}
macro_rules! eprintln {
() => { eprintln!(""); };
($($t:tt)*) => {{
use ::std::io::Write;
let _ = writeln!(::std::io::stderr(), $($t)*);
}};
}
macro_rules! dbg {
($v:expr) => {{
let val = $v;
eprintln!("[{}:{}] {} = {:?}", file!(), line!(), stringify!($v), val);
val
}}
}
macro_rules! mat {
($($e:expr),*) => { Vec::from(vec![$($e),*]) };
($($e:expr,)*) => { Vec::from(vec![$($e),*]) };
($e:expr; $d:expr) => { Vec::from(vec![$e; $d]) };
($e:expr; $d:expr $(; $ds:expr)+) => { Vec::from(vec![mat![$e $(; $ds)*]; $d]) };
}
macro_rules! ok {
($a:ident$([$i:expr])*.$f:ident()$(@$t:ident)*) => {
$a$([$i])*.$f($($t),*)
};
($a:ident$([$i:expr])*.$f:ident($e:expr$(,$es:expr)*)$(@$t:ident)*) => { {
let t = $e;
ok!($a$([$i])*.$f($($es),*)$(@$t)*@t)
} };
}
pub fn readln() -> String {
let mut line = String::new();
::std::io::stdin().read_line(&mut line).unwrap_or_else(|e| panic!("{}", e));
line
}
macro_rules! read {
($($t:tt),*; $n:expr) => {{
let stdin = ::std::io::stdin();
let ret = ::std::io::BufRead::lines(stdin.lock()).take($n).map(|line| {
let line = line.unwrap();
let mut it = line.split_whitespace();
_read!(it; $($t),*)
}).collect::<Vec<_>>();
ret
}};
($($t:tt),*) => {{
let line = readln();
let mut it = line.split_whitespace();
_read!(it; $($t),*)
}};
}
macro_rules! _read {
($it:ident; [char]) => {
_read!($it; String).chars().collect::<Vec<_>>()
};
($it:ident; [u8]) => {
Vec::from(_read!($it; String).into_bytes())
};
($it:ident; usize1) => {
$it.next().unwrap_or_else(|| panic!("input mismatch")).parse::<usize>().unwrap_or_else(|e| panic!("{}", e)) - 1
};
($it:ident; [usize1]) => {
$it.map(|s| s.parse::<usize>().unwrap_or_else(|e| panic!("{}", e)) - 1).collect::<Vec<_>>()
};
($it:ident; [$t:ty]) => {
$it.map(|s| s.parse::<$t>().unwrap_or_else(|e| panic!("{}", e))).collect::<Vec<_>>()
};
($it:ident; $t:ty) => {
$it.next().unwrap_or_else(|| panic!("input mismatch")).parse::<$t>().unwrap_or_else(|e| panic!("{}", e))
};
($it:ident; $($t:tt),+) => {
($(_read!($it; $t)),*)
};
}
pub fn main() {
let _ = ::std::thread::Builder::new().name("run".to_string()).stack_size(32 * 1024 * 1024).spawn(run).unwrap().join();
}
const MOD: usize = 1_000_000_007;
const INF: f64 = std::f64::MAX/2.0;
fn solve() {
let n = read!(usize);
let abc = read!([i64];n);
let total = 1<<n;
let mut dp = vec![vec![vec![0;total];3];n];
for i in 0..n {
for j in 0..3 {
let idx = 1<<i;
dp[i][j][idx] = abc[i][j];
}
}
for i in 0..total {
for x in 0..n {
if ((i>>x)%2)==0 {
continue;
}
for y in 0..3 {
let height = abc[x][y];
let vmin = min(abc[x][(y+1)%3], abc[x][(y+2)%3]);
let vmax = max(abc[x][(y+1)%3], abc[x][(y+2)%3]);
for a in 0..n {
if a==x {
continue;
}
if ((i>>a)%2)==0 {
continue;
}
for b in 0..3 {
let prev_height = abc[a][b];
let prev_vmin = min(abc[a][(b+1)%3], abc[a][(b+2)%3]);
let prev_vmax = max(abc[a][(b+1)%3], abc[a][(b+2)%3]);
if vmin<=prev_vmin && vmax<=prev_vmax {
dp[x][y][i] = max(dp[x][y][i], dp[a][b][i^(1<<x)]+height);
}
}
}
}
}
}
let mut ans = 0;
for i in 0..n {
for j in 0..3 {
for k in 0..total {
ans = max(ans, dp[i][j][k]);
}
}
}
println!("{}", ans);
}
fn run() {
solve();
}
ziita