結果
問題 | No.2563 色ごとのグループ |
ユーザー | ikd |
提出日時 | 2023-12-02 15:26:27 |
言語 | Rust (1.77.0 + proconio) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,627 bytes |
コンパイル時間 | 15,486 ms |
コンパイル使用メモリ | 378,280 KB |
実行使用メモリ | 25,344 KB |
最終ジャッジ日時 | 2024-09-26 18:41:25 |
合計ジャッジ時間 | 16,561 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 0 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 1 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 1 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 6 ms
5,376 KB |
testcase_21 | AC | 3 ms
5,376 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 41 ms
12,032 KB |
testcase_25 | AC | 39 ms
12,544 KB |
testcase_26 | AC | 58 ms
17,536 KB |
testcase_27 | AC | 66 ms
22,016 KB |
testcase_28 | AC | 68 ms
19,328 KB |
testcase_29 | AC | 99 ms
25,344 KB |
testcase_30 | AC | 96 ms
25,216 KB |
testcase_31 | AC | 101 ms
25,344 KB |
testcase_32 | AC | 104 ms
25,216 KB |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
ソースコード
use std::{io, collections::HashSet}; use scanner::Scanner; fn main() { let mut scanner = Scanner::from(io::stdin().lock()); let (n, m) = scan!((usize, usize), <~ scanner); let c = scan!([usize; n], <~ scanner); let edges = scan!([(usize, usize); m], <~ scanner); let c = c.into_iter().map(|c| c - 1).collect::<Vec<_>>(); let edges = edges.into_iter().map(|(u, v)| (u - 1, v - 1)).collect::<Vec<_>>(); let mut sets = vec![HashSet::new(); n]; for i in 0..n { sets[c[i]].insert(i); } let mut ans = 0; for s in &sets { if s.len() >= 1 { ans += s.len() - 1; } } for (u, v) in edges { if sets[c[u]].contains(&v) { assert!(ans >= 1); ans -= 1; } } println!("{}", ans); } // ✂ --- scanner --- ✂ #[allow(unused)] mod scanner { use std::fmt; use std::io; use std::str; pub struct Scanner<R> { r: R, l: String, i: usize, } impl<R> Scanner<R> where R: io::BufRead, { pub fn new(reader: R) -> Self { Self { r: reader, l: String::new(), i: 0, } } pub fn scan<T>(&mut self) -> T where T: str::FromStr, T::Err: fmt::Debug, { self.skip_blanks(); assert!(self.i < self.l.len()); // remain some character assert_ne!(&self.l[self.i..=self.i], " "); let rest = &self.l[self.i..]; let len = rest .find(|ch| char::is_ascii_whitespace(&ch)) .unwrap_or_else(|| rest.len()); // parse self.l[self.i..(self.i + len)] let val = rest[..len] .parse() .unwrap_or_else(|e| panic!("{:?}, attempt to read `{}`", e, rest)); self.i += len; val } pub fn scan_vec<T>(&mut self, n: usize) -> Vec<T> where T: str::FromStr, T::Err: fmt::Debug, { (0..n).map(|_| self.scan()).collect::<Vec<_>>() } fn skip_blanks(&mut self) { loop { match self.l[self.i..].find(|ch| !char::is_ascii_whitespace(&ch)) { Some(j) => { self.i += j; break; } None => { self.l.clear(); // clear buffer let num_bytes = self .r .read_line(&mut self.l) .unwrap_or_else(|_| panic!("invalid UTF-8")); assert!(num_bytes > 0, "reached EOF :("); self.i = 0; } } } } } impl<'a> From<&'a str> for Scanner<&'a [u8]> { fn from(s: &'a str) -> Self { Self::new(s.as_bytes()) } } impl<'a> From<io::StdinLock<'a>> for Scanner<io::BufReader<io::StdinLock<'a>>> { fn from(stdin: io::StdinLock<'a>) -> Self { Self::new(io::BufReader::new(stdin)) } } #[macro_export] macro_rules! scan { (( $($t: ty),+ ), <~ $scanner: expr) => { ( $(scan!($t, <~ $scanner)),+ ) }; ([ $t: tt; $n: expr ], <~ $scanner: expr) => { (0..$n).map(|_| scan!($t, <~ $scanner)).collect::<Vec<_>>() }; ($t: ty, <~ $scanner: expr) => { $scanner.scan::<$t>() }; } } // ✂ --- scanner --- ✂