結果

問題 No.1377 Half xor Half
ユーザー koba-e964
提出日時 2021-11-29 22:20:58
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 3,108 bytes
コンパイル時間 11,392 ms
コンパイル使用メモリ 401,008 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-07-02 13:49:24
合計ジャッジ時間 13,260 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 46
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;
use std::io::{Write, BufWriter};
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
macro_rules! input {
($($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)*}
};
}
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)*}
};
}
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, chars) => {
read_value!($next, String).chars().collect::<Vec<char>>()
};
($next:expr, usize1) => (read_value!($next, usize) - 1);
($next:expr, [ $t:tt ]) => {{
let len = read_value!($next, usize);
read_value!($next, [$t; len])
}};
($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
}
trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); }
impl<T: PartialOrd> Change for T {
fn chmax(&mut self, x: T) { if *self < x { *self = x; } }
fn chmin(&mut self, x: T) { if *self > x { *self = x; } }
}
// https://yukicoder.me/problems/no/1377 (3)
// x=i x=i+1 (a[i], a[i + n]) (0, 0) -> (0, 0), (0, 1) -> (1, 0), (1, 0) -> (1, 1), (1, 1) -> (0, 1) (0, 0)
    -> (0, 0), (0, 1) -> (1, 1), (1, 0) -> (0, 1), (1, 1) -> (1, 0) (0, 0) 2N
    
fn main() {
let out = std::io::stdout();
let mut out = BufWriter::new(out.lock());
macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
input! {
n: usize,
s: chars,
t: chars,
}
let tbl = [
[0, -1, -1, -1],
[-1, 0, 1, 2],
[-1, 2, 0, 1],
[-1, 1, 2, 0],
];
let get = |s: &[char], x: usize| -> usize {
let a = s[x] as u8 - b'0';
let b = s[n + x] as u8 - b'0';
(a * 2 + b) as usize
};
let mut ans = vec![];
for i in 0..n {
let a = get(&s, i);
let b = get(&t, i);
let k = tbl[a][b];
if k < 0 {
puts!("-1\n");
return;
}
if k > 0 {
if k == 1 {
ans.push(i);
ans.push(i + 1);
} else {
ans.push(i + 1);
ans.push(i);
}
}
}
puts!("{}\n", ans.len());
for a in ans {
puts!("{}\n", a);
}
}
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