結果

問題 No.2427 Tree Distance Two
ユーザー tipstar0125tipstar0125
提出日時 2023-08-18 22:27:16
言語 Rust
(1.77.0 + proconio)
結果
AC  
実行時間 183 ms / 2,000 ms
コード長 5,591 bytes
コンパイル時間 12,855 ms
コンパイル使用メモリ 377,308 KB
実行使用メモリ 34,432 KB
最終ジャッジ日時 2024-05-06 04:44:51
合計ジャッジ時間 17,884 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
このコードへのチャレンジ
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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
5,248 KB
testcase_03 AC 172 ms
30,720 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 177 ms
30,720 KB
testcase_06 AC 1 ms
5,376 KB
testcase_07 AC 143 ms
32,384 KB
testcase_08 AC 177 ms
34,432 KB
testcase_09 AC 148 ms
32,384 KB
testcase_10 AC 183 ms
33,024 KB
testcase_11 AC 161 ms
32,128 KB
testcase_12 AC 172 ms
31,616 KB
testcase_13 AC 181 ms
31,488 KB
testcase_14 AC 87 ms
29,952 KB
testcase_15 AC 1 ms
5,376 KB
testcase_16 AC 1 ms
5,376 KB
testcase_17 AC 1 ms
5,376 KB
testcase_18 AC 1 ms
5,376 KB
testcase_19 AC 1 ms
5,376 KB
testcase_20 AC 3 ms
5,376 KB
testcase_21 AC 4 ms
5,376 KB
testcase_22 AC 1 ms
5,376 KB
testcase_23 AC 1 ms
5,376 KB
testcase_24 AC 3 ms
5,376 KB
testcase_25 AC 29 ms
9,600 KB
testcase_26 AC 89 ms
19,712 KB
testcase_27 AC 53 ms
14,848 KB
testcase_28 AC 162 ms
28,544 KB
testcase_29 AC 136 ms
25,344 KB
testcase_30 AC 82 ms
19,200 KB
testcase_31 AC 42 ms
13,312 KB
testcase_32 AC 81 ms
19,072 KB
testcase_33 AC 71 ms
17,024 KB
testcase_34 AC 19 ms
6,656 KB
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ソースコード

diff # 

#![allow(non_snake_case)]
#![allow(unused_imports)]
#![allow(unused_macros)]
#![allow(clippy::needless_range_loop)]
#![allow(clippy::comparison_chain)]
#![allow(clippy::nonminimal_bool)]
#![allow(clippy::neg_multiply)]
#![allow(dead_code)]
use std::cmp::Reverse;
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, VecDeque};

#[derive(Default)]
struct Solver {}
impl Solver {
    fn solve(&mut self) {
        input! {
            N: usize,
            UV: [(usize, usize); N-1]
        }

        let mut G = vec![vec![]; N];
        for &(u, v) in &UV {
            G[u - 1].push(v - 1);
            G[v - 1].push(u - 1);
        }

        let mut cnt = vec![0; N];
        for i in 0..N {
            for &next in &G[i] {
                cnt[next] += 1;
            }
        }
        let mut ans = vec![0; N];
        for i in 0..N {
            for &next in &G[i] {
                ans[next] += cnt[i];
            }
        }
        for i in 0..N {
            println!("{}", ans[i] - cnt[i]);
        }
    }
}

fn join_to_string<T: std::string::ToString>(v: &[T], sep: &str) -> String {
    v.iter()
        .fold("".to_string(), |s, x| s + x.to_string().as_str() + sep)
}

trait Bound<T> {
    fn lower_bound(&self, x: &T) -> usize;
    fn upper_bound(&self, x: &T) -> usize;
}

impl<T: PartialOrd> Bound<T> for [T] {
    fn lower_bound(&self, x: &T) -> usize {
        let (mut low, mut high) = (0, self.len());
        while low + 1 < high {
            let mid = (low + high) / 2;
            if self[mid] < *x {
                low = mid;
            } else {
                high = mid;
            }
        }
        if self[low] < *x {
            low + 1
        } else {
            low
        }
    }

    fn upper_bound(&self, x: &T) -> usize {
        let (mut low, mut high) = (0, self.len());
        while low + 1 < high {
            let mid = (low + high) / 2;
            if self[mid] <= *x {
                low = mid;
            } else {
                high = mid;
            }
        }
        if self[low] <= *x {
            low + 1
        } else {
            low
        }
    }
}

#[macro_export]
macro_rules! max {
    ($x: expr) => ($x);
    ($x: expr, $( $y: expr ),+) => {
        std::cmp::max($x, max!($( $y ),+))
    }
}
#[macro_export]
macro_rules! min {
    ($x: expr) => ($x);
    ($x: expr, $( $y: expr ),+) => {
        std::cmp::min($x, min!($( $y ),+))
    }
}

fn main() {
    std::thread::Builder::new()
        .stack_size(128 * 1024 * 1024)
        .spawn(|| Solver::default().solve())
        .unwrap()
        .join()
        .unwrap();
}

#[macro_export]
macro_rules! input {
    () => {};
    (mut $var:ident: $t:tt, $($rest:tt)*) => {
        let mut $var = __input_inner!($t);
        input!($($rest)*)
    };
    ($var:ident: $t:tt, $($rest:tt)*) => {
        let $var = __input_inner!($t);
        input!($($rest)*)
    };
    (mut $var:ident: $t:tt) => {
        let mut $var = __input_inner!($t);
    };
    ($var:ident: $t:tt) => {
        let $var = __input_inner!($t);
    };
}

#[macro_export]
macro_rules! __input_inner {
    (($($t:tt),*)) => {
        ($(__input_inner!($t)),*)
    };
    ([$t:tt; $n:expr]) => {
        (0..$n).map(|_| __input_inner!($t)).collect::<Vec<_>>()
    };
    ([$t:tt]) => {{
        let n = __input_inner!(usize);
        (0..n).map(|_| __input_inner!($t)).collect::<Vec<_>>()
    }};
    (chars) => {
        __input_inner!(String).chars().collect::<Vec<_>>()
    };
    (bytes) => {
        __input_inner!(String).into_bytes()
    };
    (usize1) => {
        __input_inner!(usize) - 1
    };
    ($t:ty) => {
        $crate::read::<$t>()
    };
}

#[macro_export]
macro_rules! println {
    () => {
        $crate::write(|w| {
            use std::io::Write;
            std::writeln!(w).unwrap()
        })
    };
    ($($arg:tt)*) => {
        $crate::write(|w| {
            use std::io::Write;
            std::writeln!(w, $($arg)*).unwrap()
        })
    };
}

#[macro_export]
macro_rules! print {
    ($($arg:tt)*) => {
        $crate::write(|w| {
            use std::io::Write;
            std::write!(w, $($arg)*).unwrap()
        })
    };
}

#[macro_export]
macro_rules! flush {
    () => {
        $crate::write(|w| {
            use std::io::Write;
            w.flush().unwrap()
        })
    };
}

pub fn read<T>() -> T
where
    T: std::str::FromStr,
    T::Err: std::fmt::Debug,
{
    use std::cell::RefCell;
    use std::io::*;

    thread_local! {
        pub static STDIN: RefCell<StdinLock<'static>> = RefCell::new(stdin().lock());
    }

    STDIN.with(|r| {
        let mut r = r.borrow_mut();
        let mut s = vec![];
        loop {
            let buf = r.fill_buf().unwrap();
            if buf.is_empty() {
                break;
            }
            if let Some(i) = buf.iter().position(u8::is_ascii_whitespace) {
                s.extend_from_slice(&buf[..i]);
                r.consume(i + 1);
                if !s.is_empty() {
                    break;
                }
            } else {
                s.extend_from_slice(buf);
                let n = buf.len();
                r.consume(n);
            }
        }
        std::str::from_utf8(&s).unwrap().parse().unwrap()
    })
}

pub fn write<F>(f: F)
where
    F: FnOnce(&mut std::io::BufWriter<std::io::StdoutLock>),
{
    use std::cell::RefCell;
    use std::io::*;

    thread_local! {
        pub static STDOUT: RefCell<BufWriter<StdoutLock<'static>>> =
            RefCell::new(BufWriter::new(stdout().lock()));
    }

    STDOUT.with(|w| f(&mut w.borrow_mut()))
}
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