結果
問題 | No.479 頂点は要らない |
ユーザー | hatoo |
提出日時 | 2017-10-18 16:47:25 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 36 ms / 1,500 ms |
コード長 | 3,056 bytes |
コンパイル時間 | 13,435 ms |
コンパイル使用メモリ | 403,620 KB |
実行使用メモリ | 11,392 KB |
最終ジャッジ日時 | 2024-12-16 12:36:16 |
合計ジャッジ時間 | 16,414 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 38 |
ソースコード
#[allow(unused_imports)] use std::cmp::{max, min, Ordering}; #[allow(unused_imports)] use std::collections::{HashMap, HashSet}; mod util { use std::io::stdin; use std::str::FromStr; use std::fmt::Debug; #[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 get<T: FromStr>() -> T where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().parse().unwrap() } #[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 get2<T: FromStr, U: FromStr>() -> (T, U) where <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } #[allow(dead_code)] pub fn get3<S: FromStr, T: FromStr, U: FromStr>() -> (S, T, U) where <S as FromStr>::Err: Debug, <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } } // std::cmp::Reverse doesn't have Clone. #[derive(Eq, PartialEq, Clone)] struct Rev<T>(pub T); impl<T: PartialOrd> PartialOrd for Rev<T> { fn partial_cmp(&self, other: &Rev<T>) -> Option<Ordering> { other.0.partial_cmp(&self.0) } } impl<T: Ord> Ord for Rev<T> { fn cmp(&self, other: &Rev<T>) -> Ordering { other.0.cmp(&self.0) } } #[allow(unused_macros)] macro_rules! debug { ($x: expr) => { println!("{}: {:?}", stringify!($x), $x) } } fn main() { let (n, m): (usize, usize) = util::get2(); let ab: Vec<(usize, usize)> = (0..m).map(|_| util::get2()).collect(); let mut edges = vec![Vec::new(); n]; for &(a, b) in &ab { edges[a].push(b); edges[b].push(a); } let mut ans = vec![false; n]; for i in (0..n).rev() { if !ans[i] { for &to in &edges[i] { ans[to] = true; } } } println!( "{}", ans.iter() .rev() .skip_while(|&&b| !b) .map(|&b| if b { '1' } else { '0' }) .collect::<String>() ); }