結果
問題 | No.390 最長の数列 |
ユーザー | hatoo |
提出日時 | 2018-08-20 17:57:11 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 104 ms / 5,000 ms |
コード長 | 3,550 bytes |
コンパイル時間 | 13,281 ms |
コンパイル使用メモリ | 386,316 KB |
実行使用メモリ | 19,356 KB |
最終ジャッジ日時 | 2024-05-04 17:55:41 |
合計ジャッジ時間 | 13,742 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 9 ms
5,248 KB |
testcase_01 | AC | 4 ms
5,376 KB |
testcase_02 | AC | 8 ms
5,376 KB |
testcase_03 | AC | 6 ms
5,376 KB |
testcase_04 | AC | 8 ms
5,376 KB |
testcase_05 | AC | 8 ms
5,376 KB |
testcase_06 | AC | 104 ms
19,356 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 5 ms
5,376 KB |
testcase_10 | AC | 36 ms
19,356 KB |
testcase_11 | AC | 35 ms
19,228 KB |
testcase_12 | AC | 36 ms
19,356 KB |
testcase_13 | AC | 29 ms
19,188 KB |
testcase_14 | AC | 54 ms
5,376 KB |
testcase_15 | AC | 1 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 12 ms
13,824 KB |
testcase_18 | AC | 15 ms
16,256 KB |
コンパイルメッセージ
warning: unused variable: `n` --> src/main.rs:84:9 | 84 | let n = get!(usize); | ^ help: if this is intentional, prefix it with an underscore: `_n` | = note: `#[warn(unused_variables)]` on by default
ソースコード
#[doc = " https://github.com/hatoo/competitive-rust-snippets"] #[allow(unused_imports)] use std::cmp::{max, min, Ordering}; #[allow(unused_imports)] use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque}; #[allow(unused_imports)] use std::io::{stdin, stdout, BufWriter, Write}; #[allow(unused_imports)] use std::iter::FromIterator; mod util { use std::fmt::Debug; use std::io::{stdin, stdout, BufWriter, StdoutLock}; use std::str::FromStr; #[allow(dead_code)] pub fn line() -> String { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().to_string() } #[allow(dead_code)] pub fn chars() -> Vec<char> { line().chars().collect() } #[allow(dead_code)] pub fn gets<T: FromStr>() -> Vec<T> where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.split_whitespace() .map(|t| t.parse().unwrap()) .collect() } #[allow(dead_code)] pub fn with_bufwriter<F: FnOnce(BufWriter<StdoutLock>) -> ()>(f: F) { let out = stdout(); let writer = BufWriter::new(out.lock()); f(writer) } } #[allow(unused_macros)] macro_rules ! get { ( $ t : ty ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; line . trim ( ) . parse ::<$ t > ( ) . unwrap ( ) } } ; ( $ ( $ t : ty ) ,* ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; let mut iter = line . split_whitespace ( ) ; ( $ ( iter . next ( ) . unwrap ( ) . parse ::<$ t > ( ) . unwrap ( ) , ) * ) } } ; ( $ t : ty ; $ n : expr ) => { ( 0 ..$ n ) . map ( | _ | get ! ( $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ ( $ t : ty ) ,*; $ n : expr ) => { ( 0 ..$ n ) . map ( | _ | get ! ( $ ( $ t ) ,* ) ) . collect ::< Vec < _ >> ( ) } ; ( $ t : ty ;; ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; line . split_whitespace ( ) . map ( | t | t . parse ::<$ t > ( ) . unwrap ( ) ) . collect ::< Vec < _ >> ( ) } } ; ( $ t : ty ;; $ n : expr ) => { ( 0 ..$ n ) . map ( | _ | get ! ( $ t ;; ) ) . collect ::< Vec < _ >> ( ) } ; } #[allow(unused_macros)] macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } } const BIG_STACK_SIZE: bool = true; #[allow(dead_code)] fn main() { use std::thread; if BIG_STACK_SIZE { thread::Builder::new() .stack_size(32 * 1024 * 1024) .name("solve".into()) .spawn(solve) .unwrap() .join() .unwrap(); } else { solve(); } } fn rec(x: usize, ys: &[bool], memo: &mut [Option<usize>]) -> usize { if !ys[x] { return 0; } if let Some(res) = memo[x] { return res; } let res = (2..) .map(|m| x * m) .take_while(|&y| y <= 1000000) .map(|y| rec(y, ys, memo)) .max() .unwrap_or(0) + 1; memo[x] = Some(res); res } fn solve() { let n = get!(usize); let xs = get!(usize;;); let mut ys = vec![false; 1000001]; for &x in &xs { ys[x] = true; } let mut memo = vec![None; 1000001]; let ans = xs .into_iter() .map(|x| rec(x, &ys, &mut memo)) .max() .unwrap_or(1); println!("{}", ans); }