#655321 (Rust) No.1500 Super Knight

• 問題: No.1500 Super Knight
• ユーザー: Strorkis
• 提出日時: 2021-05-07 23:07:25
• 言語: Rust (1.77.0 + proconio)
• 結果: AC
• 実行時間: 1 ms / 2,000 ms
• コード長: 3,242 bytes
• コンパイル時間: 15,308 ms
• コンパイル使用メモリ: 377,776 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-09-15 11:12:59
• 合計ジャッジ時間: 15,325 ms
• ジャッジサーバーID （参考情報）: judge4 / judge5

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,248 KB
testcase_02	AC	1 ms; 5,248 KB
testcase_03	AC	1 ms; 5,376 KB
testcase_04	AC	1 ms; 5,376 KB
testcase_05	AC	1 ms; 5,376 KB
testcase_06	AC	1 ms; 5,376 KB
testcase_07	AC	1 ms; 5,376 KB
testcase_08	AC	1 ms; 5,376 KB
testcase_09	AC	1 ms; 5,376 KB
testcase_10	AC	1 ms; 5,376 KB
testcase_11	AC	1 ms; 5,376 KB
testcase_12	AC	1 ms; 5,376 KB
testcase_13	AC	1 ms; 5,376 KB
testcase_14	AC	1 ms; 5,376 KB
testcase_15	AC	1 ms; 5,376 KB
testcase_16	AC	1 ms; 5,376 KB
testcase_17	AC	1 ms; 5,376 KB
testcase_18	AC	1 ms; 5,376 KB
testcase_19	AC	1 ms; 5,376 KB
testcase_20	AC	1 ms; 5,376 KB
testcase_21	AC	1 ms; 5,376 KB
testcase_22	AC	1 ms; 5,376 KB
testcase_23	AC	1 ms; 5,376 KB
testcase_24	AC	1 ms; 5,376 KB
testcase_25	AC	1 ms; 5,376 KB
testcase_26	AC	1 ms; 5,376 KB
testcase_27	AC	1 ms; 5,376 KB
testcase_28	AC	1 ms; 5,376 KB
testcase_29	AC	1 ms; 5,376 KB
testcase_30	AC	1 ms; 5,376 KB
testcase_31	AC	1 ms; 5,376 KB
testcase_32	AC	1 ms; 5,376 KB
testcase_33	AC	1 ms; 5,376 KB
testcase_34	AC	1 ms; 5,376 KB

ソースコード

pub mod mod_int {
    use std::{fmt, ops};

    #[derive(Clone, Copy, Debug)]
    pub struct ModInt(u64);

    impl ModInt {
        const MOD: u64 = 1_000_000_007;

        pub fn new(mut x: u64) -> Self {
            if x >= Self::MOD {
                x %= Self::MOD;
            }
            Self(x)
        }

        pub fn zero() -> Self {
            Self(0)
        }

        pub fn one() -> Self {
            Self(1)
        }
    }

    impl From<usize> for ModInt {
        fn from(x: usize) -> Self {
            Self::new(x as u64)
        }
    }

    impl From<i64> for ModInt {
        fn from(mut x: i64) -> Self {
            let m = Self::MOD as i64;
            if x.abs() >= m {
                x %= m;
            }
            if x < 0 {
                x += m
            }
            Self::new(x as u64)
        }
    }

    impl ops::Add for ModInt {
        type Output = Self;

        fn add(self, other: Self) -> Self {
            let mut x = self.0 + other.0;
            if x >= Self::MOD {
                x -= Self::MOD;
            }
            Self(x)
        }
    }

    impl ops::AddAssign for ModInt {
        fn add_assign(&mut self, other: Self) {
            *self = *self + other;
        }
    }

    impl ops::Sub for ModInt {
        type Output = Self;

        fn sub(mut self, other: Self) -> Self {
            if self.0 < other.0 {
                self.0 += Self::MOD;
            }
            Self(self.0 - other.0)
        }
    }

    impl ops::SubAssign for ModInt {
        fn sub_assign(&mut self, other: Self) {
            *self = *self - other;
        }
    }

    impl ops::Mul for ModInt {
        type Output = Self;

        fn mul(self, other: Self) -> Self {
            Self::new(self.0 * other.0)
        }
    }

    impl ops::MulAssign for ModInt {
        fn mul_assign(&mut self, other: Self) {
            *self = *self * other;
        }
    }

    impl fmt::Display for ModInt {
        fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
            write!(f, "{}", self.0)
        }
    }

    impl ModInt {
        pub fn pow(mut self, mut n: u64) -> Self {
            let mut res = Self::one();
            while n > 0 {
                if n & 1 == 1 {
                    res *= self;
                }
                self *= self;
                n >>= 1;
            }
            res
        }
        
        pub fn inv(self) -> Self {
            self.pow(Self::MOD - 2)
        }
    }
}

use mod_int::ModInt;

fn main() {
    let ref mut buf = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), buf).ok();
    let mut iter = buf.split_whitespace();

    macro_rules! scan {
        ([$t:tt; $n:expr]) => ((0..$n).map(|_| scan!($t)).collect::<Vec<_>>());
        (($($t:tt),*)) => (($(scan!($t)),*));
        (Usize1) => (scan!(usize) - 1);
        (Bytes) => (scan!(String).into_bytes());
        ($t:ty) => (iter.next().unwrap().parse::<$t>().unwrap());
    }

    let n = scan!(u64);
    let ans = match n {
        0 => ModInt::one(),
        1 => ModInt::new(12),
        2 => ModInt::new(65),
        _ => ModInt::new(n * 6 + 2) * ModInt::new(n * 3) - ModInt::new(n * n - 1),
    };
    println!("{}", ans);
}