Submission #4043163

---

Source Code Expand

// input macro
// ref: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let mut 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_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};

    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

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>>()
    };

    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };

    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused_mut)]
#[allow(unused_parens)]
fn main() {
    // 入力
    input!(
        n: usize,
        a: [i32; n],
    );

    // 累積和
    let zero = vec![0];
    let travel = zero.iter()
                     .chain(a.iter())
                     .chain(zero.iter())
                     .map(|&i| i)
                     .collect::<Vec<i32>>();

    let cum = (1..n+2).map(|i| (travel[i]-travel[i-1]).abs())
                      .sum::<i32>();

    for i in 1..n+1 {
        let ans = (cum
                    - (travel[i]-travel[i-1]).abs()
                    - (travel[i]-travel[i+1]).abs()
                    + (travel[i+1]-travel[i-1]).abs());

        println!("{}", ans);
    }
}

Submission Info

Judge Result