結果

問題 No.675 ドットちゃんたち
ユーザー nebocconebocco
提出日時 2021-03-03 19:52:52
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 68 ms / 2,000 ms
コード長 5,917 bytes
コンパイル時間 11,467 ms
コンパイル使用メモリ 402,532 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-10-03 08:35:06
合計ジャッジ時間 13,939 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
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 * 4
other AC * 8
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

fn main() {
let mut io = IO::new();
input!{ from io,
n: usize, px: i64, py: i64
}
let mut st = Vec::with_capacity(n);
for _ in 0..n {
let t = io.scan::<i32>();
st.push(if t < 3 {
(t, io.scan::<i64>())
} else {
(t, 0)
});
}
let mut ans = Vec::with_capacity(n);
let mut ret = vec![vec![1, 0, 0], vec![0, 1, 0], vec![0, 0, 1]];
for &(t, d) in st.iter().rev() {
let a = if t == 1 {
vec![vec![1, 0, d], vec![0, 1, 0], vec![0, 0, 1]]
} else if t == 2 {
vec![vec![1, 0, 0], vec![0, 1, d], vec![0, 0, 1]]
} else {
vec![vec![0, 1, 0], vec![-1, 0, 0], vec![0, 0, 1]]
};
ret = mat_mult(&ret, &a);
let v = mat_mult(&ret, &vec![vec![px], vec![py], vec![1]]);
ans.push((v[0][0], v[1][0]));
}
io.iterln(ans.into_iter().rev(), "\n");
}
pub fn mat_mult(a: &[Vec<i64>], b: &[Vec<i64>]) -> Vec<Vec<i64>> {
let n = a.len();
let m = a[0].len();
assert_eq!(b.len(), m);
let o = b[0].len();
let mut res = vec![vec![0; o]; n];
for i in 0..n {
for j in 0..m {
for k in 0..o {
res[i][k] += a[i][j] * b[j][k];
}
}
}
res
}
// ------------ io module start ------------
use std::io::{stdout, BufWriter, Read, StdoutLock, Write};
pub struct IO {
iter: std::str::SplitAsciiWhitespace<'static>,
buf: BufWriter<StdoutLock<'static>>,
}
impl IO {
pub fn new() -> Self {
let mut input = String::new();
std::io::stdin().read_to_string(&mut input).unwrap();
let input = Box::leak(input.into_boxed_str());
let out = Box::new(stdout());
IO {
iter: input.split_ascii_whitespace(),
buf: BufWriter::new(Box::leak(out).lock()),
}
}
fn scan_str(&mut self) -> &'static str {
self.iter.next().unwrap()
}
pub fn scan<T: Scan>(&mut self) -> <T as Scan>::Output {
<T as Scan>::scan(self)
}
pub fn scan_vec<T: Scan>(&mut self, n: usize) -> Vec<<T as Scan>::Output> {
(0..n).map(|_| self.scan::<T>()).collect()
}
pub fn print<T: Print>(&mut self, x: T) {
<T as Print>::print(self, x);
}
pub fn println<T: Print>(&mut self, x: T) {
self.print(x);
self.print("\n");
}
pub fn iterln<T: Print, I: Iterator<Item = T>>(&mut self, mut iter: I, delim: &str) {
if let Some(v) = iter.next() {
self.print(v);
for v in iter {
self.print(delim);
self.print(v);
}
}
self.print("\n");
}
pub fn flush(&mut self) {
self.buf.flush().unwrap();
}
}
impl Default for IO {
fn default() -> Self {
Self::new()
}
}
pub trait Scan {
type Output;
fn scan(io: &mut IO) -> Self::Output;
}
macro_rules! impl_scan {
($($t:tt),*) => {
$(
impl Scan for $t {
type Output = Self;
fn scan(s: &mut IO) -> Self::Output {
s.scan_str().parse().unwrap()
}
}
)*
};
}
impl_scan!(i16, i32, i64, isize, u16, u32, u64, usize, String, f32, f64);
pub enum Bytes {}
impl Scan for Bytes {
type Output = &'static [u8];
fn scan(s: &mut IO) -> Self::Output {
s.scan_str().as_bytes()
}
}
pub enum Chars {}
impl Scan for Chars {
type Output = Vec<char>;
fn scan(s: &mut IO) -> Self::Output {
s.scan_str().chars().collect()
}
}
pub enum Usize1 {}
impl Scan for Usize1 {
type Output = usize;
fn scan(s: &mut IO) -> Self::Output {
s.scan::<usize>().wrapping_sub(1)
}
}
impl<T: Scan, U: Scan> Scan for (T, U) {
type Output = (T::Output, U::Output);
fn scan(s: &mut IO) -> Self::Output {
(T::scan(s), U::scan(s))
}
}
impl<T: Scan, U: Scan, V: Scan> Scan for (T, U, V) {
type Output = (T::Output, U::Output, V::Output);
fn scan(s: &mut IO) -> Self::Output {
(T::scan(s), U::scan(s), V::scan(s))
}
}
impl<T: Scan, U: Scan, V: Scan, W: Scan> Scan for (T, U, V, W) {
type Output = (T::Output, U::Output, V::Output, W::Output);
fn scan(s: &mut IO) -> Self::Output {
(T::scan(s), U::scan(s), V::scan(s), W::scan(s))
}
}
pub trait Print {
fn print(w: &mut IO, x: Self);
}
macro_rules! impl_print_int {
($($t:ty),*) => {
$(
impl Print for $t {
fn print(w: &mut IO, x: Self) {
w.buf.write_all(x.to_string().as_bytes()).unwrap();
}
}
)*
};
}
impl_print_int!(i16, i32, i64, isize, u16, u32, u64, usize, f32, f64);
impl Print for u8 {
fn print(w: &mut IO, x: Self) {
w.buf.write_all(&[x]).unwrap();
}
}
impl Print for &[u8] {
fn print(w: &mut IO, x: Self) {
w.buf.write_all(x).unwrap();
}
}
impl Print for &str {
fn print(w: &mut IO, x: Self) {
w.print(x.as_bytes());
}
}
impl Print for String {
fn print(w: &mut IO, x: Self) {
w.print(x.as_bytes());
}
}
impl<T: Print, U: Print> Print for (T, U) {
fn print(w: &mut IO, (x, y): Self) {
w.print(x);
w.print(" ");
w.print(y);
}
}
impl<T: Print, U: Print, V: Print> Print for (T, U, V) {
fn print(w: &mut IO, (x, y, z): Self) {
w.print(x);
w.print(" ");
w.print(y);
w.print(" ");
w.print(z);
}
}
mod neboccoio_macro {
#[macro_export]
macro_rules! input {
(@start $io:tt @read @rest) => {};
(@start $io:tt @read @rest, $($rest: tt)*) => {
input!(@start $io @read @rest $($rest)*)
};
(@start $io:tt @read @rest mut $($rest:tt)*) => {
input!(@start $io @read @mut [mut] @rest $($rest)*)
};
(@start $io:tt @read @rest $($rest:tt)*) => {
input!(@start $io @read @mut [] @rest $($rest)*)
};
(@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: [[$kind:tt; $len1:expr]; $len2:expr] $($rest:tt)*) => {
let $($mut)* $var = (0..$len2).map(|_| $io.scan_vec::<$kind>($len1)).collect::<Vec<Vec<$kind>>>();
input!(@start $io @read @rest $($rest)*)
};
(@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: [$kind:tt; $len:expr] $($rest:tt)*) => {
let $($mut)* $var = $io.scan_vec::<$kind>($len);
input!(@start $io @read @rest $($rest)*)
};
(@start $io:tt @read @mut [$($mut:tt)?] @rest $var:tt: $kind:tt $($rest:tt)*) => {
let $($mut)* $var = $io.scan::<$kind>();
input!(@start $io @read @rest $($rest)*)
};
(from $io:tt $($rest:tt)*) => {
input!(@start $io @read @rest $($rest)*)
};
}
}
// ------------ io module end ------------
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