結果
問題 | No.2453 Seat Allocation |
ユーザー |
![]() |
提出日時 | 2023-09-02 09:28:51 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 52 ms / 2,000 ms |
コード長 | 2,741 bytes |
コンパイル時間 | 13,745 ms |
コンパイル使用メモリ | 378,124 KB |
実行使用メモリ | 7,808 KB |
最終ジャッジ日時 | 2024-06-25 09:36:40 |
合計ジャッジ時間 | 13,781 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 22 |
ソースコード
#![allow(non_snake_case, unused_imports, unused_must_use)]use std::cmp::Reverse;use std::io::{self, prelude::*};use std::str;fn main() {let (stdin, stdout) = (io::stdin(), io::stdout());let mut scan = Scanner::new(stdin.lock());let mut out = io::BufWriter::new(stdout.lock());macro_rules! input {($T: ty) => {scan.token::<$T>()};($T: ty, $N: expr) => {(0..$N).map(|_| scan.token::<$T>()).collect::<Vec<_>>()};}let N = input!(usize);let M = input!(usize);let A = input!(usize, N);let B = input!(usize, M);let mut hq = std::collections::BinaryHeap::new();for i in 0..N {hq.push((Ratio::new(A[i], B[0]), Reverse(i), 0));}for _ in 0..M {let (_, i_rev, j) = hq.pop().unwrap();let i = i_rev.0;if j + 1 < M {hq.push((Ratio::new(A[i], B[j + 1]), Reverse(i), j + 1));}writeln!(out, "{}", i + 1);}}struct Ratio {a: usize,b: usize,}impl Ratio {fn new(a: usize, b: usize) -> Self {return Self { a: a, b: b };}}impl PartialEq for Ratio {fn eq(&self, other: &Self) -> bool {let a1 = self.a;let b1 = self.b;let a2 = other.a;let b2 = other.b;a1 * b2 == a2 * b1}}impl Eq for Ratio {fn assert_receiver_is_total_eq(&self) {}}impl PartialOrd for Ratio {fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {let a1 = self.a;let b1 = self.b;let a2 = other.a;let b2 = other.b;(a1 * b2).partial_cmp(&(a2 * b1))}}impl Ord for Ratio {fn cmp(&self, other: &Self) -> std::cmp::Ordering {let a1 = self.a;let b1 = self.b;let a2 = other.a;let b2 = other.b;(a1 * b2).cmp(&(a2 * b1))}}struct Scanner<R> {reader: R,buf_str: Vec<u8>,buf_iter: str::SplitWhitespace<'static>,}impl<R: BufRead> Scanner<R> {fn new(reader: R) -> Self {Self {reader,buf_str: vec![],buf_iter: "".split_whitespace(),}}fn token<T: str::FromStr>(&mut self) -> T {loop {if let Some(token) = self.buf_iter.next() {return token.parse().ok().expect("Failed parse");}self.buf_str.clear();self.reader.read_until(b'\n', &mut self.buf_str).expect("Failed read");self.buf_iter = unsafe {let slice = str::from_utf8_unchecked(&self.buf_str);std::mem::transmute(slice.split_whitespace())}}}}