結果
| 問題 | No.442 和と積 | 
| コンテスト | |
| ユーザー |  guricerin | 
| 提出日時 | 2019-07-24 14:57:38 | 
| 言語 | Rust (1.83.0 + proconio) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 1 ms / 1,000 ms | 
| コード長 | 3,936 bytes | 
| コンパイル時間 | 13,676 ms | 
| コンパイル使用メモリ | 380,084 KB | 
| 実行使用メモリ | 5,376 KB | 
| 最終ジャッジ日時 | 2024-07-04 23:19:50 | 
| 合計ジャッジ時間 | 14,809 ms | 
| ジャッジサーバーID (参考情報) | judge4 / judge5 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 3 | 
| other | AC * 18 | 
ソースコード
// Original: https://github.com/tanakh/competitive-rs
#[allow(unused_macros)]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($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)*}
    };
}
#[allow(unused_macros)]
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)*}
    };
    ($next:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}
#[allow(unused_macros)]
macro_rules! read_value {
    ($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, [ $t:tt ]) => {
        {
            let len = read_value!($next, usize);
            (0..len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
        }
    };
    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };
    ($next:expr, bytes) => {
        read_value!($next, String).into_bytes()
    };
    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };
    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}
mod util {
    #[allow(dead_code)]
    pub fn chmin<T>(x: &mut T, y: T) -> bool
    where
        T: PartialOrd + Copy,
    {
        *x > y && {
            *x = y;
            true
        }
    }
    #[allow(dead_code)]
    pub fn chmax<T>(x: &mut T, y: T) -> bool
    where
        T: PartialOrd + Copy,
    {
        *x < y && {
            *x = y;
            true
        }
    }
    /// 整数除算切り上げ
    #[allow(dead_code)]
    pub fn roundup(a: i64, b: i64) -> i64 {
        (a + b - 1) / b
    }
    #[allow(dead_code)]
    pub fn ctoi(c: char) -> i64 {
        c as i64 - 48
    }
}
#[allow(unused_imports)]
use util::*;
#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, VecDeque};
use num::*;
fn main() {
    input! {
        a:i128,b:i128
    }
    let ans = gcd(lcm(a, b) * gcd(a, b), a + b);
    println!("{}", ans);
}
pub mod num {
    use std::ops::{Add, Div, Mul, Neg, Rem, Sub};
    pub trait NumOps<Rhs = Self, Output = Self>:
        Add<Rhs, Output = Output>
        + Sub<Rhs, Output = Output>
        + Mul<Rhs, Output = Output>
        + Div<Rhs, Output = Output>
        + Rem<Rhs, Output = Output>
        + Neg<Output = Output>
    {
    }
    impl<T, Rhs, Output> NumOps<Rhs, Output> for T where
        T: Add<Rhs, Output = Output>
            + Sub<Rhs, Output = Output>
            + Mul<Rhs, Output = Output>
            + Div<Rhs, Output = Output>
            + Rem<Rhs, Output = Output>
            + Neg<Output = Output>
    {
    }
    pub trait Num: PartialEq + NumOps + From<i32> {}
    impl Num for i32 {}
    impl Num for i64 {}
    impl Num for i128 {}
    /// Greatest common divisor
    pub fn gcd<T: Num + Copy>(a: T, b: T) -> T {
        if b == 0.into() {
            a
        } else {
            gcd(b, a % b)
        }
    }
    /// Least common multiple
    pub fn lcm<T: Num + Copy>(a: T, b: T) -> T {
        let g = gcd(a, b);
        a / g * b
    }
}
            
            
            
        