結果

問題 No.2918 Divide Applicants Fairly
ユーザー akakimidoriakakimidori
提出日時 2024-10-07 22:46:29
言語 Rust
(1.77.0 + proconio)
結果
AC  
実行時間 8 ms / 2,000 ms
コード長 5,663 bytes
コンパイル時間 13,474 ms
コンパイル使用メモリ 394,060 KB
実行使用メモリ 6,824 KB
最終ジャッジ日時 2024-11-22 20:40:17
合計ジャッジ時間 15,565 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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 1 ms
6,820 KB
testcase_01 AC 1 ms
6,820 KB
testcase_02 AC 1 ms
6,820 KB
testcase_03 AC 1 ms
6,816 KB
testcase_04 AC 1 ms
6,820 KB
testcase_05 AC 1 ms
6,816 KB
testcase_06 AC 1 ms
6,816 KB
testcase_07 AC 1 ms
6,816 KB
testcase_08 AC 1 ms
6,816 KB
testcase_09 AC 1 ms
6,820 KB
testcase_10 AC 1 ms
6,824 KB
testcase_11 AC 1 ms
6,820 KB
testcase_12 AC 2 ms
6,824 KB
testcase_13 AC 1 ms
6,816 KB
testcase_14 AC 2 ms
6,816 KB
testcase_15 AC 1 ms
6,816 KB
testcase_16 AC 1 ms
6,816 KB
testcase_17 AC 1 ms
6,816 KB
testcase_18 AC 2 ms
6,820 KB
testcase_19 AC 1 ms
6,820 KB
testcase_20 AC 1 ms
6,820 KB
testcase_21 AC 1 ms
6,820 KB
testcase_22 AC 1 ms
6,816 KB
testcase_23 AC 1 ms
6,816 KB
testcase_24 AC 1 ms
6,816 KB
testcase_25 AC 1 ms
6,820 KB
testcase_26 AC 2 ms
6,816 KB
testcase_27 AC 1 ms
6,816 KB
testcase_28 AC 1 ms
6,816 KB
testcase_29 AC 1 ms
6,820 KB
testcase_30 AC 1 ms
6,820 KB
testcase_31 AC 1 ms
6,820 KB
testcase_32 AC 1 ms
6,816 KB
testcase_33 AC 1 ms
6,816 KB
testcase_34 AC 1 ms
6,820 KB
testcase_35 AC 1 ms
6,816 KB
testcase_36 AC 8 ms
6,816 KB
testcase_37 AC 5 ms
6,816 KB
testcase_38 AC 4 ms
6,820 KB
testcase_39 AC 1 ms
6,816 KB
testcase_40 AC 1 ms
6,816 KB
testcase_41 AC 1 ms
6,816 KB
testcase_42 AC 1 ms
6,816 KB
testcase_43 AC 1 ms
6,816 KB
testcase_44 AC 1 ms
6,820 KB
testcase_45 AC 1 ms
6,820 KB
testcase_46 AC 1 ms
6,816 KB
testcase_47 AC 1 ms
6,820 KB
testcase_48 AC 1 ms
6,820 KB
testcase_49 AC 4 ms
6,816 KB
testcase_50 AC 1 ms
6,816 KB
testcase_51 AC 1 ms
6,816 KB
testcase_52 AC 1 ms
6,820 KB
testcase_53 AC 1 ms
6,816 KB
testcase_54 AC 1 ms
6,816 KB
testcase_55 AC 2 ms
6,820 KB
testcase_56 AC 2 ms
6,816 KB
testcase_57 AC 1 ms
6,820 KB
testcase_58 AC 2 ms
6,816 KB
testcase_59 AC 2 ms
6,816 KB
testcase_60 AC 1 ms
6,820 KB
testcase_61 AC 1 ms
6,820 KB
testcase_62 AC 1 ms
6,816 KB
testcase_63 AC 1 ms
6,824 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 #

fn main() {
    input! {
        n: usize,
        r: [usize; n],
    }
    let mut r = r;
    let m = n / 2;
    r.sort();
    r.push(0);
    let mut sum = r.clone();
    for i in (0..n).rev() {
        sum[i] += sum[i + 1];
    }
    let size = sum[n - m];
    let w = 8 * std::mem::size_of::<usize>();
    let mut dp = vec![0usize; size / w + 1];
    let mut bit = (1usize << m) - 1;
    let mut s = sum[0] - sum[m];
    while bit < (1 << n) {
        if dp[s / w] >> (s % w) & 1 == 1 {
            println!("0");
            return;
        }
        dp[s / w] |= 1 << (s % w);
        let z = bit.trailing_zeros() as usize;
        let o = (bit >> z).trailing_ones() as usize;
        s += r[z + o];
        s -= sum[z] - sum[z + o];
        s += sum[0] - sum[o - 1];
        bit = (bit + (1 << z)) | ((1 << (o - 1)) - 1);
    } {}
    let mut ans = std::usize::MAX;
    let mut up = std::usize::MAX;
    for (i, &dp) in dp.iter().enumerate().rev() {
        let mut v = dp;
        while v > 0 {
            let k = v.leading_zeros() as usize;
            v ^= 1 << (w - 1 - k);
            let u = i * w + w - 1 - k;
            ans = ans.min(up - u);
            up = u;
        }
    }
    println!("{}", ans);
}

// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------
// ---------- begin super slice ----------
pub trait SuperSlice {
    type Item;
    fn lower_bound(&self, key: &Self::Item) -> usize
    where
        Self::Item: Ord;
    fn lower_bound_by<F>(&self, f: F) -> usize
    where
        F: FnMut(&Self::Item) -> std::cmp::Ordering;
    fn lower_bound_by_key<K, F>(&self, key: &K, f: F) -> usize
    where
        K: Ord,
        F: FnMut(&Self::Item) -> K;
    fn upper_bound(&self, key: &Self::Item) -> usize
    where
        Self::Item: Ord;
    fn upper_bound_by<F>(&self, f: F) -> usize
    where
        F: FnMut(&Self::Item) -> std::cmp::Ordering;
    fn upper_bound_by_key<K, F>(&self, key: &K, f: F) -> usize
    where
        K: Ord,
        F: FnMut(&Self::Item) -> K;
    fn next_permutation(&mut self) -> bool
    where
        Self::Item: Ord;
    fn next_permutation_by<F>(&mut self, f: F) -> bool
    where
        F: FnMut(&Self::Item, &Self::Item) -> std::cmp::Ordering;
    fn prev_permutation(&mut self) -> bool
    where
        Self::Item: Ord;
}

impl<T> SuperSlice for [T] {
    type Item = T;
    fn lower_bound(&self, key: &Self::Item) -> usize
    where
        T: Ord,
    {
        self.lower_bound_by(|p| p.cmp(key))
    }
    fn lower_bound_by<F>(&self, mut f: F) -> usize
    where
        F: FnMut(&Self::Item) -> std::cmp::Ordering,
    {
        self.binary_search_by(|p| f(p).then(std::cmp::Ordering::Greater))
            .unwrap_err()
    }
    fn lower_bound_by_key<K, F>(&self, key: &K, mut f: F) -> usize
    where
        K: Ord,
        F: FnMut(&Self::Item) -> K,
    {
        self.lower_bound_by(|p| f(p).cmp(key))
    }
    fn upper_bound(&self, key: &Self::Item) -> usize
    where
        T: Ord,
    {
        self.upper_bound_by(|p| p.cmp(key))
    }
    fn upper_bound_by<F>(&self, mut f: F) -> usize
    where
        F: FnMut(&Self::Item) -> std::cmp::Ordering,
    {
        self.binary_search_by(|p| f(p).then(std::cmp::Ordering::Less))
            .unwrap_err()
    }
    fn upper_bound_by_key<K, F>(&self, key: &K, mut f: F) -> usize
    where
        K: Ord,
        F: FnMut(&Self::Item) -> K,
    {
        self.upper_bound_by(|p| f(p).cmp(key))
    }
    fn next_permutation(&mut self) -> bool
    where
        T: Ord,
    {
        self.next_permutation_by(|a, b| a.cmp(b))
    }
    fn next_permutation_by<F>(&mut self, mut f: F) -> bool
    where
        F: FnMut(&Self::Item, &Self::Item) -> std::cmp::Ordering,
    {
        use std::cmp::Ordering::*;
        if let Some(x) = self.windows(2).rposition(|a| f(&a[0], &a[1]) == Less) {
            let y = self.iter().rposition(|b| f(&self[x], b) == Less).unwrap();
            self.swap(x, y);
            self[(x + 1)..].reverse();
            true
        } else {
            self.reverse();
            false
        }
    }
    fn prev_permutation(&mut self) -> bool
    where
        T: Ord,
    {
        self.next_permutation_by(|a, b| a.cmp(b).reverse())
    }
}
// ---------- end super slice ----------
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