#906727 (Rust) No.2753 鳩の巣原理

提出ソース

結果

問題	No.2753 鳩の巣原理
ユーザー	Moss_Local
提出日時	2023-08-21 23:13:12
言語	Rust (1.77.0)
結果	AC
実行時間	42 ms / 2,000 ms
コード長	9,370 bytes
コンパイル時間	13,496 ms
コンパイル使用メモリ	377,764 KB
実行使用メモリ	25,476 KB
平均クエリ数	11.00
最終ジャッジ日時	2024-05-09 05:11:43
合計ジャッジ時間	14,718 ms
ジャッジサーバーID （参考情報）	judge1 / judge4

このコードへのチャレンジ
（要ログイン）

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	42 ms 24,848 KB
testcase_01	AC	23 ms 24,848 KB
testcase_02	AC	22 ms 24,848 KB
testcase_03	AC	23 ms 24,848 KB
testcase_04	AC	25 ms 24,976 KB
testcase_05	AC	22 ms 24,848 KB
testcase_06	AC	25 ms 24,848 KB
testcase_07	AC	24 ms 24,976 KB
testcase_08	AC	23 ms 25,232 KB
testcase_09	AC	24 ms 24,836 KB
testcase_10	AC	22 ms 25,476 KB
testcase_11	AC	22 ms 24,836 KB
testcase_12	AC	22 ms 24,836 KB
testcase_13	AC	23 ms 25,220 KB
testcase_14	AC	22 ms 24,964 KB
testcase_15	AC	23 ms 24,836 KB
testcase_16	AC	22 ms 24,836 KB
testcase_17	AC	23 ms 24,580 KB
testcase_18	AC	22 ms 24,836 KB
testcase_19	AC	27 ms 25,220 KB
testcase_20	AC	22 ms 25,220 KB
testcase_21	AC	22 ms 24,836 KB
testcase_22	AC	22 ms 25,220 KB
testcase_23	AC	23 ms 24,836 KB
testcase_24	AC	22 ms 24,836 KB
testcase_25	AC	22 ms 24,964 KB
testcase_26	AC	23 ms 24,836 KB
testcase_27	AC	23 ms 24,836 KB
testcase_28	AC	23 ms 25,220 KB
testcase_29	AC	21 ms 24,836 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: unused variable: `i`
   --> src/main.rs:342:9
    |
342 |     for i in 0..10 {
    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
    |
    = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `right_num`
   --> src/main.rs:347:13
    |
347 |         let right_num = right - mid;
    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_num`

warning: unused variable: `right_val_num`
   --> src/main.rs:349:13
    |
349 |         let right_val_num = right_value - x;
    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_val_num`

ソースコード

raw source code

// -*- coding:utf-8-unix -*-
// #![feature(map_first_last)]
#![allow(dead_code)]
#![allow(unused_imports)]
#![allow(unused_macros)]
use std::arch::x86_64::_MM_FROUND_NEARBYINT;
// use core::num;
use std::cmp::*;
use std::fmt::*;
use std::hash::*;
use std::iter::FromIterator;
use std::*;
use std::{cmp, collections, fmt, io, iter, ops, str};
const INF: i64 = 1223372036854775807;
const UINF: usize = INF as usize;
const LINF: i64 = 2147483647;
const INF128: i128 = 1223372036854775807000000000000;
const MOD1: i64 = 1000000007;
const MOD9: i64 = 998244353;
const MOD: i64 = MOD9;
// const MOD: i64 = MOD2;
const UMOD: usize = MOD as usize;
const M_PI: f64 = 3.14159265358979323846;

// use proconio::input;
// const MOD: i64 = INF;

use cmp::Ordering::*;
use std::collections::*;

use std::io::stdin;
use std::io::stdout;
use std::io::Write;

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

macro_rules! vp {
    // vector print separate with space
    ($x:expr) => {
        println!(
            "{}",
            $x.iter()
                .map(|x| x.to_string())
                .collect::<Vec<_>>()
                .join(" ")
        );
    };
}

macro_rules! d {
    ($x:expr) => {
        println!("{:?}", $x);
    };
}
macro_rules! yn {
    ($val:expr) => {
        if $val {
            println!("Yes");
        } else {
            println!("No");
        }
    };
}

fn main() {
    solve();
}

// 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(),
    )
}

#[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(),
    )
}

#[allow(dead_code)]
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(),
    )
}

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(),
    )
}

#[derive(Clone, Debug)]
struct MultiSet {
    set: BTreeSet<i64>,
    map: HashMap<i64, i64>,
}

impl MultiSet {
    fn new() -> MultiSet {
        MultiSet {
            set: BTreeSet::new(),
            map: HashMap::new(),
        }
    }

    ///multiset的に書き出し
    fn print(&self) {
        print!("{{ ");
        for x in &self.set {
            if let Some(&num) = self.map.get(x) {
                for _i in 0..num {
                    print!("{} ", x);
                }
            }
        }
        println!("}}");
    }

    ///重複許可挿入
    fn insert(&mut self, i: i64) -> Option<i64> {
        if let Some(_i) = self.set.get(&i) {
            //setにある
            *self.map.entry(i).or_insert(0) += 1;
        } else {
            //setにない
            self.set.insert(i);
            *self.map.entry(i).or_insert(0) += 1;
        }
        return Some(i);
    }

    ///1つ削除
    fn erase(&mut self, e: i64) -> Option<i64> {
        if let Some(_e) = self.set.get(&e) {
            //setにある
            *self.map.entry(e).or_insert(0) -= 1;
            if self.map[&e] == 0 {
                //なくなった
                self.set.take(&e);
            }
            return Some(e);
        } else {
            //setにない
            return None;
        }
    }

    ///最小値の取得
    fn get_min(&self) -> Option<i64> {
        if let Some(&m) = self.set.iter().nth(0) {
            return Some(m);
        } else {
            return None;
        }
    }

    ///最大値の取得
    fn get_max(&self) -> Option<i64> {
        if let Some(&m) = self.set.iter().last() {
            return Some(m);
        } else {
            return None;
        }
    }
}

pub struct Dsu {
    n: usize,
    // root node: -1 * component size
    // otherwise: parent
    parent_or_size: Vec<i32>,
}

impl Dsu {
    // 0 <= size <= 10^8 is constrained.
    pub fn new(size: usize) -> Self {
        Self {
            n: size,
            parent_or_size: vec![-1; size],
        }
    }
    pub fn merge(&mut self, a: usize, b: usize) -> usize {
        assert!(a < self.n);
        assert!(b < self.n);
        let (mut x, mut y) = (self.leader(a), self.leader(b));
        if x == y {
            return x;
        }
        if -self.parent_or_size[x] < -self.parent_or_size[y] {
            std::mem::swap(&mut x, &mut y);
        }
        self.parent_or_size[x] += self.parent_or_size[y];
        self.parent_or_size[y] = x as i32;
        x
    }

    pub fn same(&mut self, a: usize, b: usize) -> bool {
        assert!(a < self.n);
        assert!(b < self.n);
        self.leader(a) == self.leader(b)
    }
    pub fn leader(&mut self, a: usize) -> usize {
        assert!(a < self.n);
        if self.parent_or_size[a] < 0 {
            return a;
        }
        self.parent_or_size[a] = self.leader(self.parent_or_size[a] as usize) as i32;
        self.parent_or_size[a] as usize
    }
    pub fn size(&mut self, a: usize) -> usize {
        assert!(a < self.n);
        let x = self.leader(a);
        -self.parent_or_size[x] as usize
    }
    pub fn groups(&mut self) -> Vec<Vec<usize>> {
        let mut leader_buf = vec![0; self.n];
        let mut group_size = vec![0; self.n];
        for i in 0..self.n {
            leader_buf[i] = self.leader(i);
            group_size[leader_buf[i]] += 1;
        }
        let mut result = vec![Vec::new(); self.n];
        for i in 0..self.n {
            result[i].reserve(group_size[i]);
        }
        for i in 0..self.n {
            result[leader_buf[i]].push(i);
        }
        result
            .into_iter()
            .filter(|x| !x.is_empty())
            .collect::<Vec<Vec<usize>>>()
    }
}

fn solve() {
    let n: usize = read();
    let mut left = 0 as usize;
    let mut right = n;
    let mut left_value = 0;
    let mut right_value = n - 1;
    for i in 0..10 {
        let mid = (left + right) / 2;
        println!("? {}", mid);
        let x: usize = read();
        let left_num = mid + 1 - left;
        let right_num = right - mid;
        let left_val_num = x + 1 - left_value;
        let right_val_num = right_value - x;
        if left_val_num < left_num {
            right = mid + 1;
            right_value = x;
        } else {
            left = mid;
            left_value = x;
        }
        dbg!(left, right, left_value, right_value);
    }

    println!("Yes {} {}", left, left + 1);

    return;
}

yukicoder

結果

テストケース

コンパイルメッセージ

ソースコード