結果
| 問題 |
No.3316 Make 81181819 with only 0,1,or 8
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-10-31 21:42:08 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 3,804 bytes |
| コンパイル時間 | 12,871 ms |
| コンパイル使用メモリ | 400,416 KB |
| 実行使用メモリ | 797,952 KB |
| 最終ジャッジ日時 | 2025-10-31 21:42:24 |
| 合計ジャッジ時間 | 15,597 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | MLE * 1 -- * 21 |
ソースコード
#![allow(dead_code, unused_imports, unused_macros, non_snake_case)]
fn main() {
let max = 81181819;
let mut yiwiy9_numbers = vec![];
for i in 1 .. {
let mut x = i;
let mut digits = vec![];
while x > 0 {
digits.push([0, 1, 8][x % 3]);
x /= 3;
}
let mut y = 0;
for &d in digits.iter().rev() {
y = y * 10 + d;
}
if y > max {
break;
}
yiwiy9_numbers.push(y);
}
input! {
T: usize,
}
for _ in 0 .. T {
input! {
N: usize,
}
// let mut p = vec![];
// {
// let mut n = max - N;
// if n == 0 {
// p.push(0);
// }
// // greedy
// while n > 0 {
// let y = yiwiy9_numbers[yiwiy9_numbers.partition_point(|&y| y <= n ) - 1];
// p.push(y);
// n -= y;
// }
// }
// dp
let mut dp = HashMap::new();
dp.insert(0, (0, 0));
for &y in &yiwiy9_numbers {
dp.insert(y, (1, y));
}
fn rec(yiwiy9_numbers: &[usize], dp: &mut HashMap<usize, (usize, usize)>, n: usize) -> usize {
if let Some(&ans) = dp.get(&n) {
return ans.0;
}
let mut ans = (INF as usize, 0);
for &y in yiwiy9_numbers {
if y > n {
break;
}
ans.chmin((rec(yiwiy9_numbers, dp, n - y) + 1, y));
if ans.0 <= 2 {
break;
}
}
dp.insert(n, ans);
ans.0
}
rec(&yiwiy9_numbers, &mut dp, max - N);
let mut p = vec![];
let mut n = max - N;
if n == 0 {
p.push(0);
}
while n > 0 {
let (_, y) = dp[&n];
p.push(y);
n -= y;
}
say(p.len());
say(p.iter().implode("\n"));
}
}
type Int = i64;
const MOD: Int = 998244353;
// const MOD: Int = 1_000_000_007;
const INF: Int = 1_000_000_000_000_000_000;
const YESNO: [&'static str; 2] = ["Yes", "No"];
use proconio::{input, input_interactive, marker::{Chars, Bytes, Usize1}};
use std::*;
use std::ops::*;
use collections::*; // (BTree|Hash)(Set|Map), BinaryHeap, VecDeque, LinkedList
use cmp::{self, Reverse}; // cmp::{min, max}
fn yes() { println!("{}", YESNO[0]); }
fn no() { println!("{}", YESNO[1]); }
fn yesno(c: bool) { println!("{}", if c { YESNO[0] } else { YESNO[1] }); }
fn say<T: std::fmt::Display>(x: T) -> T { println!("{}", x); x }
fn neighbor4<F: FnMut(usize, usize)>(i: usize, j: usize, h: usize, w: usize, mut f: F) { if i > 0 { (f)(i - 1, j); } if i < h - 1 { (f)(i + 1, j); } if j > 0 { (f)(i, j - 1); } if j < w - 1 { (f)(i, j + 1); } }
trait MyItertools : Iterator + Sized {
fn to_vec(self) -> Vec<Self::Item> { self.collect::<Vec<_>>() }
fn to_vec_rev(self) -> Vec<Self::Item> { let mut v = self.collect::<Vec<_>>(); v.reverse(); v }
fn tally(self) -> HashMap<Self::Item, usize> where Self::Item: Copy + Eq + hash::Hash { let mut counts = HashMap::new(); self.for_each(|item| *counts.entry(item).or_default() += 1 ); counts }
fn count_if<P: Fn(Self::Item) -> bool>(self, predicate: P) -> usize { self.map(predicate).filter(|&x| x ).count() }
fn implode(self, sep: &str) -> String where Self::Item: std::string::ToString { self.map(|x| x.to_string()).to_vec().join(sep) }
fn mex(self, gen: impl IntoIterator<Item = Self::Item>) -> Self::Item where Self::Item: Ord { let mut v = self.collect::<Vec<_>>(); v.sort(); v.dedup(); let mut it = v.into_iter(); gen.into_iter().find(|a| if let Some(x) = it.next() { a != &x } else { true }).unwrap() }
}
impl<T: ?Sized> MyItertools for T where T: Iterator + Sized {}
trait MyOrd : PartialOrd + Sized {
fn chmax(&mut self, mut rhs: Self) -> bool { if self < &mut rhs { *self = rhs; true } else { false } }
fn chmin(&mut self, mut rhs: Self) -> bool { if self > &mut rhs { *self = rhs; true } else { false } }
}
impl<T: Sized + PartialOrd> MyOrd for T {}