結果
| 問題 | No.94 圏外です。(EASY) |
| ユーザー |
 nebocco
|
| 提出日時 | 2021-02-25 18:55:28 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 6 ms / 5,000 ms |
| コード長 | 6,338 bytes |
| コンパイル時間 | 13,362 ms |
| コンパイル使用メモリ | 409,168 KB |
| 実行使用メモリ | 6,824 KB |
| 最終ジャッジ日時 | 2024-10-01 09:04:32 |
| 合計ジャッジ時間 | 13,957 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| other | AC * 22 |
ソースコード
fn main() {let mut io = IO::new();input!{ from io,n: usize,g: [(i32, i32); n]}let mut ans = 1.0;let mut uf = UnionFind::new(n);for i in 0..n {for j in i+1..n {if (g[i].0 - g[j].0).pow(2) + (g[i].1 - g[j].1).pow(2) <= 100 {uf.unite(i, j).ok();}}}for i in 0..n {for j in i..n {if uf.is_same(i, j) {let cos = (((g[i].0 - g[j].0).pow(2) + (g[i].1 - g[j].1).pow(2)) as f64).sqrt() + 2.;if ans < cos {ans = cos;}}}}io.println(ans);}// ------------ UnionFind start ------------#[derive(Clone, Debug)]pub struct UnionFind(Vec<isize>);impl UnionFind {pub fn new(len: usize) -> Self {Self(vec![-1; len])}pub fn find(&mut self, i: usize) -> usize {self._climb(i).0}pub fn size(&mut self, i: usize) -> usize {self._climb(i).1}pub fn unite(&mut self, u: usize, v: usize) -> Result<(), ()> {let (mut u, su) = self._climb(u);let (mut v, sv) = self._climb(v);if u == v { return Err(()); }if su < sv {std::mem::swap(&mut u, &mut v);}self.0[u] += self.0[v];self.0[v] = u as isize;Ok(())}pub fn is_same(&mut self, u: usize, v:usize) -> bool {self.find(u) == self.find(v)}fn _climb(&mut self, i: usize) -> (usize, usize) {assert!(i < self.0.len());let mut v = i;while self.0[v] >= 0 {let p = self.0[v] as usize;if self.0[p] >= 0 {self.0[v] = self.0[p];v = self.0[p] as usize;} else {v = p;}}(v, -self.0[v] as usize)}}// ------------ UnionFind end ------------// ------------ io module start ------------use std::io::{stdout, BufWriter, Read, StdoutLock, Write};pub struct IO {iter: std::str::SplitAsciiWhitespace<'static>,buf: BufWriter<StdoutLock<'static>>,}impl IO {pub fn new() -> Self {let mut input = String::new();std::io::stdin().read_to_string(&mut input).unwrap();let input = Box::leak(input.into_boxed_str());let out = Box::new(stdout());IO {iter: input.split_ascii_whitespace(),buf: BufWriter::new(Box::leak(out).lock()),}}fn scan_str(&mut self) -> &'static str {self.iter.next().unwrap()}pub fn scan<T: Scan>(&mut self) -> <T as Scan>::Output {<T as Scan>::scan(self)}pub fn scan_vec<T: Scan>(&mut self, n: usize) -> Vec<<T as Scan>::Output> {(0..n).map(|_| self.scan::<T>()).collect()}pub fn print<T: Print>(&mut self, x: T) {<T as Print>::print(self, x);}pub fn println<T: Print>(&mut self, x: T) {self.print(x);self.print("\n");}pub fn iterln<T: Print, I: Iterator<Item = T>>(&mut self, mut iter: I, delim: &str) {if let Some(v) = iter.next() {self.print(v);for v in iter {self.print(delim);self.print(v);}}self.print("\n");}pub fn flush(&mut self) {self.buf.flush().unwrap();}}impl Default for IO {fn default() -> Self {Self::new()}}pub trait Scan {type Output;fn scan(io: &mut IO) -> Self::Output;}macro_rules! impl_scan {($($t:tt),*) => {$(impl Scan for $t {type Output = Self;fn scan(s: &mut IO) -> Self::Output {s.scan_str().parse().unwrap()}})*};}impl_scan!(i16, i32, i64, isize, u16, u32, u64, usize, String);pub enum Bytes {}impl Scan for Bytes {type Output = &'static [u8];fn scan(s: &mut IO) -> Self::Output {s.scan_str().as_bytes()}}pub enum Chars {}impl Scan for Chars {type Output = Vec<char>;fn scan(s: &mut IO) -> Self::Output {s.scan_str().chars().collect()}}pub enum Usize1 {}impl Scan for Usize1 {type Output = usize;fn scan(s: &mut IO) -> Self::Output {s.scan::<usize>().wrapping_sub(1)}}impl<T: Scan, U: Scan> Scan for (T, U) {type Output = (T::Output, U::Output);fn scan(s: &mut IO) -> Self::Output {(T::scan(s), U::scan(s))}}impl<T: Scan, U: Scan, V: Scan> Scan for (T, U, V) {type Output = (T::Output, U::Output, V::Output);fn scan(s: &mut IO) -> Self::Output {(T::scan(s), U::scan(s), V::scan(s))}}impl<T: Scan, U: Scan, V: Scan, W: Scan> Scan for (T, U, V, W) {type Output = (T::Output, U::Output, V::Output, W::Output);fn scan(s: &mut IO) -> Self::Output {(T::scan(s), U::scan(s), V::scan(s), W::scan(s))}}pub trait Print {fn print(w: &mut IO, x: Self);}macro_rules! impl_print_int {($($t:ty),*) => {$(impl Print for $t {fn print(w: &mut IO, x: Self) {w.buf.write_all(x.to_string().as_bytes()).unwrap();}})*};}impl_print_int!(i16, i32, i64, isize, u16, u32, u64, usize, f32, f64);impl Print for u8 {fn print(w: &mut IO, x: Self) {w.buf.write_all(&[x]).unwrap();}}impl Print for &[u8] {fn print(w: &mut IO, x: Self) {w.buf.write_all(x).unwrap();}}impl Print for &str {fn print(w: &mut IO, x: Self) {w.print(x.as_bytes());}}impl Print for String {fn print(w: &mut IO, x: Self) {w.print(x.as_bytes());}}impl<T: Print, U: Print> Print for (T, U) {fn print(w: &mut IO, (x, y): Self) {w.print(x);w.print(" ");w.print(y);}}impl<T: Print, U: Print, V: Print> Print for (T, U, V) {fn print(w: &mut IO, (x, y, z): Self) {w.print(x);w.print(" ");w.print(y);w.print(" ");w.print(z);}}mod neboccoio_macro {#[macro_export]macro_rules! input {(@start $io:tt @read @rest) => {};(@start $io:tt @read @rest, $($rest: tt)*) => {input!(@start $io @read @rest $($rest)*)};(@start $io:tt @read @rest mut $($rest:tt)*) => {input!(@start $io @read @mut [mut] @rest $($rest)*)};(@start $io:tt @read @rest $($rest:tt)*) => {input!(@start $io @read @mut [] @rest $($rest)*)};(@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: [$kind:tt; $len:expr] $($rest:tt)*) => {let $($mut)* $var = $io.scan_vec::<$kind>($len);input!(@start $io @read @rest $($rest)*)};(@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: $kind:tt $($rest:tt)*) => {let $($mut)* $var = $io.scan::<$kind>();input!(@start $io @read @rest $($rest)*)};(from $io:tt $($rest:tt)*) => {input!(@start $io @read @rest $($rest)*)};}}// ------------ io module end ------------