#892443 (Rust) No.5017 Tool-assisted Shooting

• 問題: No.5017 Tool-assisted Shooting
• ユーザー: 👑 tipstar0125
• 提出日時: 2023-07-16 18:57:21
• 言語: Rust (1.77.0)
• 結果: AC
• 実行時間: 77 ms / 2,000 ms
• コード長: 9,218 bytes
• コンパイル時間: 2,428 ms
• コンパイル使用メモリ: 162,760 KB
• 実行使用メモリ: 24,336 KB
• スコア: 2,859,502
• 平均クエリ数: 972.15
• 最終ジャッジ日時: 2023-07-16 18:59:07
• 合計ジャッジ時間: 13,912 ms
• ジャッジサーバーID （参考情報）: judge15 / judge9

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	73 ms; 23,604 KB
testcase_01	AC	71 ms; 23,652 KB
testcase_02	AC	67 ms; 23,328 KB
testcase_03	AC	69 ms; 23,604 KB
testcase_04	AC	69 ms; 23,508 KB
testcase_05	AC	69 ms; 24,024 KB
testcase_06	AC	66 ms; 24,024 KB
testcase_07	AC	71 ms; 23,364 KB
testcase_08	AC	68 ms; 23,352 KB
testcase_09	AC	68 ms; 23,820 KB
testcase_10	AC	70 ms; 23,364 KB
testcase_11	AC	67 ms; 23,808 KB
testcase_12	AC	74 ms; 23,400 KB
testcase_13	AC	68 ms; 23,916 KB
testcase_14	AC	69 ms; 23,604 KB
testcase_15	AC	71 ms; 23,364 KB
testcase_16	AC	69 ms; 23,592 KB
testcase_17	AC	72 ms; 23,508 KB
testcase_18	AC	71 ms; 24,252 KB
testcase_19	AC	71 ms; 23,784 KB
testcase_20	AC	68 ms; 23,580 KB
testcase_21	AC	71 ms; 24,036 KB
testcase_22	AC	69 ms; 23,400 KB
testcase_23	AC	69 ms; 23,328 KB
testcase_24	AC	69 ms; 23,640 KB
testcase_25	AC	72 ms; 23,352 KB
testcase_26	AC	71 ms; 23,328 KB
testcase_27	AC	71 ms; 23,364 KB
testcase_28	AC	69 ms; 23,568 KB
testcase_29	AC	68 ms; 23,820 KB
testcase_30	AC	69 ms; 23,808 KB
testcase_31	AC	67 ms; 23,976 KB
testcase_32	AC	71 ms; 23,640 KB
testcase_33	AC	74 ms; 24,036 KB
testcase_34	AC	69 ms; 23,796 KB
testcase_35	AC	40 ms; 23,976 KB
testcase_36	AC	67 ms; 23,580 KB
testcase_37	AC	31 ms; 23,328 KB
testcase_38	AC	42 ms; 23,508 KB
testcase_39	AC	66 ms; 23,592 KB
testcase_40	AC	67 ms; 23,616 KB
testcase_41	AC	68 ms; 23,496 KB
testcase_42	AC	68 ms; 23,604 KB
testcase_43	AC	68 ms; 23,328 KB
testcase_44	AC	67 ms; 23,580 KB
testcase_45	AC	70 ms; 23,364 KB
testcase_46	AC	67 ms; 23,616 KB
testcase_47	AC	68 ms; 24,240 KB
testcase_48	AC	71 ms; 23,604 KB
testcase_49	AC	66 ms; 23,820 KB
testcase_50	AC	69 ms; 23,364 KB
testcase_51	AC	69 ms; 24,312 KB
testcase_52	AC	73 ms; 23,472 KB
testcase_53	AC	37 ms; 23,508 KB
testcase_54	AC	67 ms; 23,808 KB
testcase_55	AC	35 ms; 24,228 KB
testcase_56	AC	70 ms; 24,276 KB
testcase_57	AC	68 ms; 23,964 KB
testcase_58	AC	67 ms; 23,616 KB
testcase_59	AC	68 ms; 23,376 KB
testcase_60	AC	70 ms; 23,820 KB
testcase_61	AC	66 ms; 23,364 KB
testcase_62	AC	67 ms; 23,328 KB
testcase_63	AC	66 ms; 24,012 KB
testcase_64	AC	72 ms; 24,264 KB
testcase_65	AC	41 ms; 23,496 KB
testcase_66	AC	66 ms; 23,796 KB
testcase_67	AC	68 ms; 24,012 KB
testcase_68	AC	67 ms; 23,640 KB
testcase_69	AC	70 ms; 23,820 KB
testcase_70	AC	72 ms; 24,312 KB
testcase_71	AC	68 ms; 23,412 KB
testcase_72	AC	67 ms; 23,976 KB
testcase_73	AC	67 ms; 23,376 KB
testcase_74	AC	67 ms; 24,216 KB
testcase_75	AC	70 ms; 23,580 KB
testcase_76	AC	70 ms; 23,352 KB
testcase_77	AC	70 ms; 23,592 KB
testcase_78	AC	65 ms; 23,364 KB
testcase_79	AC	69 ms; 23,400 KB
testcase_80	AC	69 ms; 23,964 KB
testcase_81	AC	70 ms; 23,592 KB
testcase_82	AC	68 ms; 23,484 KB
testcase_83	AC	68 ms; 23,592 KB
testcase_84	AC	40 ms; 24,024 KB
testcase_85	AC	68 ms; 23,616 KB
testcase_86	AC	69 ms; 24,216 KB
testcase_87	AC	68 ms; 23,484 KB
testcase_88	AC	77 ms; 23,364 KB
testcase_89	AC	68 ms; 23,352 KB
testcase_90	AC	71 ms; 24,276 KB
testcase_91	AC	67 ms; 23,364 KB
testcase_92	AC	69 ms; 23,700 KB
testcase_93	AC	67 ms; 23,592 KB
testcase_94	AC	67 ms; 24,324 KB
testcase_95	AC	68 ms; 23,412 KB
testcase_96	AC	68 ms; 24,336 KB
testcase_97	AC	70 ms; 23,424 KB
testcase_98	AC	69 ms; 24,216 KB
testcase_99	AC	72 ms; 23,604 KB

ソースコード

#![allow(non_snake_case)]
#![allow(unused_imports)]
#![allow(unused_macros)]
#![allow(clippy::comparison_chain)]
#![allow(clippy::nonminimal_bool)]
#![allow(clippy::neg_multiply)]
#![allow(clippy::type_complexity)]
#![allow(clippy::needless_range_loop)]
#![allow(dead_code)]

use std::{
    cmp::Reverse,
    collections::{BTreeMap, BTreeSet, BinaryHeap, VecDeque},
};

mod rnd {
    static mut S: usize = 0;
    static MAX: usize = 1e9 as usize;

    #[inline]
    pub fn init(seed: usize) {
        unsafe {
            if seed == 0 {
                let t = std::time::SystemTime::now()
                    .duration_since(std::time::UNIX_EPOCH)
                    .unwrap()
                    .as_secs() as usize;
                S = t
            } else {
                S = seed;
            }
        }
    }
    #[inline]
    pub fn gen() -> usize {
        unsafe {
            if S == 0 {
                init(0);
            }
            S ^= S << 7;
            S ^= S >> 9;
            S
        }
    }
    #[inline]
    pub fn gen_range(a: usize, b: usize) -> usize {
        gen() % (b - a) + a
    }
    #[inline]
    pub fn gen_bool() -> bool {
        gen() & 1 == 1
    }
    #[inline]
    pub fn gen_range_isize(a: usize) -> isize {
        let mut x = (gen() % a) as isize;
        if gen_bool() {
            x *= -1;
        }
        x
    }
    #[inline]
    pub fn gen_range_neg_wrapping(a: usize) -> usize {
        let mut x = gen() % a;
        if gen_bool() {
            x = x.wrapping_neg();
        }
        x
    }
    #[inline]
    pub fn gen_float() -> f64 {
        ((gen() % MAX) as f64) / MAX as f64
    }
}

#[derive(Debug, Clone)]
struct TimeKeeper {
    start_time: std::time::Instant,
    time_threshold: f64,
}

impl TimeKeeper {
    fn new(time_threshold: f64) -> Self {
        TimeKeeper {
            start_time: std::time::Instant::now(),
            time_threshold,
        }
    }
    #[inline]
    fn isTimeOver(&self) -> bool {
        let elapsed_time = self.start_time.elapsed().as_nanos() as f64 * 1e-9;
        #[cfg(feature = "local")]
        {
            elapsed_time * 1.5 >= self.time_threshold
        }
        #[cfg(not(feature = "local"))]
        {
            elapsed_time >= self.time_threshold
        }
    }
    #[inline]
    fn get_time(&self) -> f64 {
        let elapsed_time = self.start_time.elapsed().as_nanos() as f64 * 1e-9;
        #[cfg(feature = "local")]
        {
            elapsed_time * 1.5
        }
        #[cfg(not(feature = "local"))]
        {
            elapsed_time
        }
    }
}

const H: usize = 60;
const W: usize = 25;
const TURN: usize = 1000;

#[derive(Debug, Clone)]
struct State {
    pos: usize,
    S: usize,
    enemy: [[(isize, usize); W]; H],
    turn: usize,
    freeze: bool,
}

impl State {
    fn new() -> Self {
        State {
            pos: 12,
            S: 0,
            enemy: [[(0, 0); W]; H],
            turn: 0,
            freeze: false,
        }
    }
    fn update_enemy(&mut self, HPX: Vec<(usize, usize, usize)>) {
        for i in 1..H {
            self.enemy[i - 1] = self.enemy[i];
        }
        let mut new_enemy = [(0, 0); W];
        for (h, p, x) in HPX {
            new_enemy[x] = (h as isize, p);
        }
        self.enemy[H - 1] = new_enemy;
    }
    fn decide_target(&self) -> Vec<(isize, Reverse<usize>, usize, usize)> {
        let mut targets = vec![];
        for i in 1..H {
            for j in 0..W {
                if self.enemy[i][j] == (0, 0) {
                    continue;
                }
                let (h, p) = self.enemy[i][j];
                if self.pos < j {
                    let right = j - self.pos;
                    let left = self.pos + W - j;
                    if left <= right {
                        let dx = left;
                        let dy = i + 1;
                        if dy as isize - dx as isize - h <= 0 {
                            continue;
                        }
                        targets.push((h, Reverse(p), left, 1));
                    } else {
                        let dx = right;
                        let dy = i + 1;
                        if dy as isize - dx as isize - h <= 0 {
                            continue;
                        }
                        targets.push((h, Reverse(p), right, 2));
                    }
                } else if self.pos > j {
                    let left = self.pos - j;
                    let right = j + W - self.pos;
                    if left <= right {
                        let dx = left;
                        let dy = i + 1;
                        if dy as isize - dx as isize - h <= 0 {
                            continue;
                        }
                        targets.push((h, Reverse(p), left, 1));
                    } else {
                        let dx = right;
                        let dy = i + 1;
                        if dy as isize - dx as isize - h <= 0 {
                            continue;
                        }
                        targets.push((h, Reverse(p), right, 2));
                    }
                } else {
                    let dy = i + 1;
                    if dy as isize - h <= 0 {
                        continue;
                    }
                    targets.push((h, Reverse(p), 0, 0));
                }
            }
        }
        targets.sort();
        targets
    }
    fn update_field(&mut self, dir: usize) {
        if dir == 1 {
            self.pos = (W + self.pos - 1) % W;
        } else if dir == 2 {
            self.pos = (self.pos + 1) % W;
        }
        for i in 1..H {
            if self.enemy[i][self.pos] != (0, 0) {
                let level = (1 + self.S / 100) as isize;
                let (h, p) = self.enemy[i][self.pos];
                if h - level <= 0 {
                    self.S += p;
                    self.enemy[i][self.pos] = (0, 0);
                } else {
                    self.enemy[i][self.pos] = (h - level, p);
                }
                break;
            }
        }
    }
    fn calc_score(&self, dir: usize) -> isize {
        let mut next = self.pos;
        if dir == 1 {
            next = (W + next - 1) % W;
        } else if dir == 2 {
            next = (next + 1) % W;
        }
        if self.enemy[0][next] != (0, 0) {
            return std::isize::MIN;
        } else {
            for i in 1..H {
                if self.enemy[i][next] != (0, 0) {
                    let level = (1 + self.S / 100) as isize;
                    let (h, p) = self.enemy[i][next];
                    if h - level <= 0 {
                        let a = (h - level) / level + 1;
                        return level / a + p as isize * 1000;
                    } else if i == 1 {
                        return std::isize::MIN;
                    } else {
                        let a = (h - level) / level + 1;
                        return level / a;
                    }
                }
            }
        }
        -1
    }
    fn is_done(&self) -> bool {
        self.turn == TURN
    }
    fn output(&self, dir: usize) {
        if dir == 0 {
            println!("S");
        } else if dir == 1 {
            println!("L");
        } else {
            println!("R");
        }
    }
}

#[derive(Default)]
struct Solver {}
impl Solver {
    fn solve(&mut self) {
        let mut state = State::new();

        while !state.is_done() {
            let N: isize = read();
            if N == -1 {
                return;
            }

            let mut HPX = vec![];
            for _ in 0..N {
                let v: Vec<usize> = read_vec();
                let h = v[0];
                let p = v[1];
                let x = v[2];
                HPX.push((h, p, x));
            }
            state.update_enemy(HPX);
            let mut scores = vec![];
            for dir in 0..3 {
                scores.push((state.calc_score(dir), Reverse(dir)));
            }
            scores.sort();
            scores.reverse();
            let Reverse(mut dir) = scores[0].1;
            let no_enemy_cnt = scores.iter().filter(|&&x| x.0 == -1).count();
            if no_enemy_cnt == 3 {
                dir = rnd::gen_range(1, 3);
            }
            state.update_field(dir);
            state.turn += 1;
            state.output(dir);
        }
    }
}

#[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();
}

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()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}