結果

問題 No.1251 絶対に間違ってはいけない最小化問題
ユーザー koba-e964koba-e964
提出日時 2020-10-09 23:51:22
言語 Rust
(1.77.0)
結果
AC  
実行時間 99 ms / 2,000 ms
コード長 3,881 bytes
コンパイル時間 3,300 ms
コンパイル使用メモリ 162,268 KB
実行使用メモリ 8,800 KB
最終ジャッジ日時 2023-09-27 20:11:55
合計ジャッジ時間 15,607 ms
ジャッジサーバーID
(参考情報)
judge13 / judge15
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
4,376 KB
testcase_01 AC 1 ms
4,380 KB
testcase_02 AC 1 ms
4,380 KB
testcase_03 AC 1 ms
4,376 KB
testcase_04 AC 1 ms
4,376 KB
testcase_05 AC 1 ms
4,376 KB
testcase_06 AC 1 ms
4,380 KB
testcase_07 AC 1 ms
4,376 KB
testcase_08 AC 1 ms
4,376 KB
testcase_09 AC 1 ms
4,376 KB
testcase_10 AC 1 ms
4,376 KB
testcase_11 AC 1 ms
4,376 KB
testcase_12 AC 1 ms
4,376 KB
testcase_13 AC 1 ms
4,376 KB
testcase_14 AC 1 ms
4,380 KB
testcase_15 AC 1 ms
4,376 KB
testcase_16 AC 1 ms
4,376 KB
testcase_17 AC 1 ms
4,380 KB
testcase_18 AC 92 ms
8,432 KB
testcase_19 AC 87 ms
8,228 KB
testcase_20 AC 49 ms
4,952 KB
testcase_21 AC 7 ms
4,380 KB
testcase_22 AC 55 ms
5,536 KB
testcase_23 AC 6 ms
4,376 KB
testcase_24 AC 71 ms
6,988 KB
testcase_25 AC 53 ms
5,380 KB
testcase_26 AC 19 ms
4,380 KB
testcase_27 AC 6 ms
4,380 KB
testcase_28 AC 98 ms
8,672 KB
testcase_29 AC 97 ms
8,712 KB
testcase_30 AC 95 ms
8,724 KB
testcase_31 AC 99 ms
8,724 KB
testcase_32 AC 99 ms
8,792 KB
testcase_33 AC 97 ms
8,800 KB
testcase_34 AC 95 ms
8,732 KB
testcase_35 AC 97 ms
8,712 KB
testcase_36 AC 96 ms
8,720 KB
testcase_37 AC 97 ms
8,708 KB
testcase_38 AC 99 ms
8,704 KB
testcase_39 AC 97 ms
8,784 KB
testcase_40 AC 99 ms
8,712 KB
testcase_41 AC 98 ms
8,704 KB
testcase_42 AC 98 ms
8,720 KB
testcase_43 AC 1 ms
4,380 KB
testcase_44 AC 1 ms
4,376 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;
use std::io::{Write, BufWriter};
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes.by_ref().map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};
    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

macro_rules! read_value {
    ($next:expr, [graph1; $len:expr]) => {{
        let mut g = vec![vec![]; $len];
        let ab = read_value!($next, [(usize1, usize1)]);
        for (a, b) in ab {
            g[a].push(b);
            g[b].push(a);
        }
        g
    }};
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };
    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };
    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };
    ($next:expr, usize1) => (read_value!($next, usize) - 1);
    ($next:expr, [ $t:tt ]) => {{
        let len = read_value!($next, usize);
        read_value!($next, [$t; len])
    }};
    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}

#[allow(unused)]
macro_rules! debug {
    ($($format:tt)*) => (write!(std::io::stderr(), $($format)*).unwrap());
}
#[allow(unused)]
macro_rules! debugln {
    ($($format:tt)*) => (writeln!(std::io::stderr(), $($format)*).unwrap());
}

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

impl<T: Ord> Bisect<T> for [T] {
    fn lower_bound(&self, val: &T) -> usize {
        let mut pass = self.len() + 1;
        let mut fail = 0;
        while pass - fail > 1 {
            let mid = (pass + fail) / 2;
            if &self[mid - 1] >= val {
                pass = mid;
            } else {
                fail = mid;
            }
        }
        pass - 1
    }
    fn upper_bound(&self, val: &T) -> usize {
        let mut pass = self.len() + 1;
        let mut fail = 0;
        while pass - fail > 1 {
            let mid = (pass + fail) / 2;
            if &self[mid - 1] > val {
                pass = mid;
            } else {
                fail = mid;
            }
        }
        pass - 1
    }
}

fn solve() {
    let out = std::io::stdout();
    let mut out = BufWriter::new(out.lock());
    macro_rules! puts {
        ($($format:tt)*) => (let _ = write!(out,$($format)*););
    }
    #[allow(unused)]
    macro_rules! putvec {
        ($v:expr) => {
            for i in 0..$v.len() {
                puts!("{}{}", $v[i], if i + 1 == $v.len() {"\n"} else {" "});
            }
        }
    }
    input! {
        n: usize,
        a: [i64; n],
        b: [i64; n],
    }
    let mut ab = vec![];
    for i in 0..n {
        ab.push((a[i], b[i]));
    }
    ab.sort();
    let mut bacc = vec![0; n + 1];
    for i in 0..n {
        bacc[i + 1] = bacc[i] + ab[i].1;
    }
    let idx = bacc.lower_bound(&((bacc[n] + 1) / 2));
    let x = ab[idx - 1].0;
    let mut s = 0;
    for &(a, b) in &ab {
        s += (a - x).abs() * b;
    }
    puts!("{} {}\n", x, s);
}

fn main() {
    // In order to avoid potential stack overflow, spawn a new thread.
    let stack_size = 104_857_600; // 100 MB
    let thd = std::thread::Builder::new().stack_size(stack_size);
    thd.spawn(|| solve()).unwrap().join().unwrap();
}
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