#661488 (Rust) No.1521 Playing Musical Chairs Alone

提出ソース

結果

問題	No.1521 Playing Musical Chairs Alone
ユーザー	Moss_Local
提出日時	2021-05-28 22:16:53
言語	Rust (1.77.0 + proconio)
結果	AC
実行時間	337 ms / 2,000 ms
コード長	8,914 bytes
コンパイル時間	20,949 ms
コンパイル使用メモリ	387,976 KB
実行使用メモリ	6,820 KB
最終ジャッジ日時	2024-11-07 09:44:43
合計ジャッジ時間	18,611 ms
ジャッジサーバーID （参考情報）	judge2 / judge4

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 6,816 KB
testcase_01	AC	1 ms 6,820 KB
testcase_02	AC	2 ms 6,816 KB
testcase_03	AC	1 ms 6,820 KB
testcase_04	AC	1 ms 6,820 KB
testcase_05	AC	111 ms 6,816 KB
testcase_06	AC	79 ms 6,816 KB
testcase_07	AC	135 ms 6,816 KB
testcase_08	AC	11 ms 6,816 KB
testcase_09	AC	9 ms 6,816 KB
testcase_10	AC	1 ms 6,816 KB
testcase_11	AC	233 ms 6,820 KB
testcase_12	AC	1 ms 6,816 KB
testcase_13	AC	1 ms 6,820 KB
testcase_14	AC	3 ms 6,820 KB
testcase_15	AC	257 ms 6,816 KB
testcase_16	AC	302 ms 6,816 KB
testcase_17	AC	298 ms 6,816 KB
testcase_18	AC	273 ms 6,816 KB
testcase_19	AC	281 ms 6,820 KB
testcase_20	AC	301 ms 6,820 KB
testcase_21	AC	291 ms 6,816 KB
testcase_22	AC	298 ms 6,816 KB
testcase_23	AC	231 ms 6,816 KB
testcase_24	AC	298 ms 6,820 KB
testcase_25	AC	337 ms 6,820 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
  --> src/main.rs:66:15
   |
66 | fn readi() -> (i64) {
   |               ^   ^
   |
   = note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
   |
66 - fn readi() -> (i64) {
66 + fn readi() -> i64 {
   |

warning: variable `K` should have a snake case name
   --> src/main.rs:196:17
    |
196 |             let K = self.n();
    |                 ^ help: convert the identifier to snake case (notice the capitalization): `k`
    |
    = note: `#[warn(non_snake_case)]` on by default

warning: variable `M` should have a snake case name
   --> src/main.rs:197:17
    |
197 |             let M = self.m();
    |                 ^ help: convert the identifier to snake case: `m`

warning: variable `N` should have a snake case name
   --> src/main.rs:198:17
    |
198 |             let N = other.n();
    |                 ^ help: convert the identifier to snake case: `n`

warning: variable `K` should have a snake case name
   --> src/main.rs:260:17
    |
260 |             let K = self.n();
    |                 ^ help: convert the identifier to snake case (notice the capitalization): `k`

warning: variable `M` should have a snake case name
   --> src/main.rs:261:17
    |
261 |             let M = self.m();
    |                 ^ help: convert the identifier to snake case: `m`

warning: variable `N` should have a snake case name
   --> src/main.rs:262:17
    |
262 |             let N = other.n();
    |                 ^ help: convert the identifier to snake case: `n`

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::collections::*;
use std::convert::*;
use std::convert::{From, Into};
use std::fmt::Debug;
use std::fs::File;
use std::io::prelude::*;
use std::io::*;
use std::marker::Copy;
use std::mem::*;
use std::ops::Bound::*;
use std::ops::{Add, Mul, Neg, Sub};
use std::str;
use std::vec;
use std::{cmp, process::Output};
use std::{cmp::Ordering, env::consts::DLL_PREFIX};
use std::{cmp::Ordering::*, f32::consts::PI};

const INF: i64 = 1223372036854775807;
const UINF: usize = INF as usize;
const FINF: f64 = 122337203685.0;
const INF128: i128 = 1223372036854775807000000000000;
const LINF: i64 = 2147483647;
const MOD: i64 = 1000000007;
// const MOD: i64 = 998244353;
// 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);
    };
}
macro_rules! dd {
    (x:expr) => {
        dbg!(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_vec2<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(),
    )
}

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

pub mod matrix {
    #[derive(Clone)]
    pub struct Matrix {
        pub v: Vec<Vec<i64>>,
    }
    impl Matrix {
        pub fn identity(n: usize) -> Self {
            let mut v = vec![vec![0; n]; n];
            for i in 0..n {
                v[i][i] = 1;
            }
            Matrix { v: v }
        }
        pub fn m(&self) -> usize {
            self.v.len()
        }
        pub fn n(&self) -> usize {
            self.v[0].len()
        }
        pub fn mul_rem(&self, other: &Self, mo: i64) -> Self {
            assert!(self.n() == other.m());
            let K = self.n();
            let M = self.m();
            let N = other.n();
            let mut r = vec![vec![0; N]; M];
            for i in 0..M {
                for j in 0..N {
                    let mut v = 0;
                    for k in 0..K {
                        v += self.v[i][k] * other.v[k][j] % mo;
                        v %= mo;
                    }
                    r[i][j] = v;
                }
            }
            Matrix { v: r }
        }
        pub fn pow(&self, k: u64, mo: i64) -> Self {
            assert!(self.m() == self.n());
            let mut k = k;
            let mut x = Self::identity(self.m());
            let mut y = self.clone();
            while k > 0 {
                if k & 1 > 0 {
                    x = y.clone() * x;
                    x %= mo;
                }
                y = y.mul_rem(&y, mo);
                y %= mo;
                k >>= 1;
            }
            x
        }
    }

    use std::ops::*;

    impl Add for Matrix {
        type Output = Self;
        fn add(self, other: Self) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] += other.v[i][j];
                }
            }
            Matrix { v: r }
        }
    }
    impl Sub for Matrix {
        type Output = Self;
        fn sub(self, other: Self) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] -= other.v[i][j];
                }
            }
            Matrix { v: r }
        }
    }
    impl Mul for Matrix {
        type Output = Self;
        fn mul(self, other: Self) -> Self {
            assert!(self.n() == other.m());
            let K = self.n();
            let M = self.m();
            let N = other.n();
            let mut r = vec![vec![0; N]; M];
            for i in 0..M {
                for j in 0..N {
                    let mut v = 0;
                    for k in 0..K {
                        v += self.v[i][k] * other.v[k][j];
                        v %= 1000000007;
                    }
                    r[i][j] = v;
                }
            }
            Matrix { v: r }
        }
    }
    impl Rem<i64> for Matrix {
        type Output = Self;
        fn rem(self, mo: i64) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] %= mo;
                }
            }
            Matrix { v: r }
        }
    }
    impl RemAssign<i64> for Matrix {
        fn rem_assign(&mut self, mo: i64) {
            for i in 0..self.m() {
                for j in 0..self.n() {
                    self.v[i][j] %= mo;
                }
            }
        }
    }
}
// #[snippet("Matrix")]

// #[test]
// fn test_matrix_pow() {
//     let x = Matrix {
//         v: vec![
//             vec![1,2],
//             vec![3,4]
//         ]
//     };
//     let x3 = x.clone() * x.clone() * x.clone();
//     assert_eq!(x.pow(3, std::i64::MAX).v, x3.v);
// }
pub type Matrix = matrix::Matrix;

fn solve() {
    let (n, k, l) = readuuu();
    let mut mat = vec![vec![0; (n) as usize]; (n) as usize];
    for i in 0..n {
        for j in 1..=l {
            let ni = (i + j) % n;
            mat[ni][i] += 1;
        }
    }
    let mut v = vec![vec![0; (1) as usize]; (n) as usize];
    v[0][0] = 1 as i64;
    let mv = Matrix { v: v };
    let mm = Matrix { v: mat };
    let mmm = mm.pow(k as u64, MOD);
    let r = mmm * mv;
    for i in 0..n {
        p!(r.v[i][0]);
    }

    return;
}

fn main() {
    solve();
}

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