結果

問題 No.1817 Reversed Edges
ユーザー Moss_LocalMoss_Local
提出日時 2022-01-21 22:04:47
言語 Rust
(1.72.1)
結果
AC  
実行時間 218 ms / 2,000 ms
コード長 6,365 bytes
コンパイル時間 1,451 ms
コンパイル使用メモリ 154,236 KB
実行使用メモリ 25,292 KB
最終ジャッジ日時 2023-08-17 06:06:33
合計ジャッジ時間 6,456 ms
ジャッジサーバーID
(参考情報)
judge14 / judge11
このコードへのチャレンジ(β)

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
4,380 KB
testcase_01 AC 1 ms
4,380 KB
testcase_02 AC 1 ms
4,384 KB
testcase_03 AC 1 ms
4,376 KB
testcase_04 AC 1 ms
4,376 KB
testcase_05 AC 1 ms
4,380 KB
testcase_06 AC 1 ms
4,376 KB
testcase_07 AC 180 ms
14,628 KB
testcase_08 AC 83 ms
8,156 KB
testcase_09 AC 176 ms
14,020 KB
testcase_10 AC 94 ms
8,896 KB
testcase_11 AC 130 ms
10,928 KB
testcase_12 AC 211 ms
16,484 KB
testcase_13 AC 218 ms
16,412 KB
testcase_14 AC 216 ms
16,376 KB
testcase_15 AC 210 ms
16,456 KB
testcase_16 AC 211 ms
16,468 KB
testcase_17 AC 211 ms
16,468 KB
testcase_18 AC 206 ms
16,416 KB
testcase_19 AC 211 ms
16,456 KB
testcase_20 AC 214 ms
16,488 KB
testcase_21 AC 213 ms
16,460 KB
testcase_22 AC 158 ms
17,592 KB
testcase_23 AC 162 ms
17,596 KB
testcase_24 AC 176 ms
25,292 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
warning: unnecessary parentheses around type
  --> Main.rs:70:15
   |
70 | fn readi() -> (i64) {
   |               ^   ^
   |
   = note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
   |
70 - fn readi() -> (i64) {
70 + fn readi() -> i64 {
   |

warning: unused variable: `i`
   --> Main.rs:208:9
    |
208 |     for i in 0..n - 1 {
    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: 2 warnings emitted

ソースコード

diff #

// -*- coding:utf-8-unix -*-
// #![feature(map_first_last)]
#![allow(dead_code)]
#![allow(unused_imports)]
#![allow(unused_macros)]
use std::any::Any;
use std::cmp::Ordering::*;
use std::collections::*;
use std::convert::*;
use std::convert::{From, Into};
use std::error::Error;
use std::f64::consts::PI;
use std::fmt::Debug;
use std::fmt::Display;
use std::fs::File;
use std::hash::Hash;
use std::io::prelude::*;
use std::io::*;
use std::iter::Filter;
use std::marker::Copy;
use std::mem::*;
use std::ops::Bound::*;
use std::ops::RangeBounds;
use std::ops::{Add, Mul, Neg, Sub};
use std::slice::from_raw_parts;
use std::str;
use std::vec;

const INF: i64 = 1223372036854775807;
const UINF: usize = INF as usize;
// const FINF: f64 = 122337203685.0;
const LINF: i64 = 2147483647;
const FINF: f64 = LINF as f64;
const INF128: i128 = 1223372036854775807000000000000;
// const MOD: i64 = 1000000007;
const MOD: i64 = 998244353;

const MPI: f64 = 3.14159265358979323846264338327950288f64;
// const MOD: i64 = INF;

const UMOD: usize = MOD as usize;
use std::cmp::*;
use std::collections::*;
use std::io::stdin;
use std::io::stdout;
use std::io::Write;

macro_rules! p {
    ($x:expr) => {
        println!("{}", $x);
    };
}
macro_rules! d {
    ($x:expr) => {
        println!("{:?}", $x);
    };
}

// use str::Chars;

// use str::Chars;
#[allow(dead_code)]
fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

#[allow(dead_code)]
fn readi() -> (i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    iter.next().unwrap().parse::<i64>().unwrap()
}

#[allow(dead_code)]
fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}
#[allow(dead_code)]
fn read_mat<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
    (0..n).map(|_| read_vec()).collect()
}

#[allow(dead_code)]
fn readii() -> (i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}

fn readff() -> (f64, f64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<f64>().unwrap(),
        iter.next().unwrap().parse::<f64>().unwrap(),
    )
}

#[allow(dead_code)]
fn readiii() -> (i64, i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}
#[allow(dead_code)]
fn readuu() -> (usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}

fn readcc() -> (char, char) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<char>().unwrap(),
        iter.next().unwrap().parse::<char>().unwrap(),
    )
}

fn readuuu() -> (usize, usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}
#[allow(dead_code)]
fn readiiii() -> (i64, i64, i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}

#[allow(dead_code)]
fn readuuuu() -> (usize, usize, usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}

fn dfs(v: usize, graph: &Vec<Vec<(usize, usize)>>, used: &mut Vec<usize>, data: &mut Vec<i64>) {
    used[v] = 1;
    for i in graph[v].iter() {
        let nv = (*i).0;
        if used[nv] == 1 {
            continue;
        }
        data[nv] = data[v] + 1;
        dfs(nv, &graph, used, data);
    }
    return;
}

fn dfs2(v: usize, graph: &Vec<Vec<(usize, usize)>>, used: &mut Vec<usize>, data: &mut Vec<i64>) {
    used[v] = 1;
    for i in graph[v].iter() {
        let nv = (*i).0;
        if used[nv] == 1 {
            continue;
        }
        data[nv] += data[v];
        dfs2(nv, &graph, used, data);
    }
    return;
}

fn solve() {
    let n: usize = read();
    let mut graph = vec![vec![(0 as usize, 0 as usize); (0) as usize]; (n) as usize];
    let mut es = vec![];
    for i in 0..n - 1 {
        let (mut a, mut b) = readuu();
        a -= 1;
        b -= 1;
        graph[a].push((b, 1));
        graph[b].push((a, 1));
        es.push((a, b));
    }

    let mut used = vec![0; n];
    let mut data1 = vec![0; n];
    dfs(0, &graph, &mut used, &mut data1);
    let mut data2 = vec![0; n];
    for mut x in es {
        if x.0 > x.1 {
            //swap
            let tmp = x.0;
            x.0 = x.1;
            x.1 = tmp;
        }
        if (data1[x.0] < data1[x.1]) && (x.1 > x.0) {
            data2[x.1] += 1;
        } else {
            data2[0] += 1;
            data2[x.0] -= 1;
        }
    }
    let mut used = vec![0; n];
    // d!(data2);
    dfs2(0, &graph, &mut used, &mut data2);
    for i in 0..n {
        p!(data2[i]);
    }

    return;
}

fn main() {
    solve();
}
0