結果
問題 | No.2315 Flying Camera |
ユーザー |
![]() |
提出日時 | 2023-06-18 19:26:19 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 47 ms / 2,000 ms |
コード長 | 1,991 bytes |
コンパイル時間 | 20,701 ms |
コンパイル使用メモリ | 376,364 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-26 08:33:22 |
合計ジャッジ時間 | 22,616 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 24 |
コンパイルメッセージ
warning: unused `Result` that must be used --> src/main.rs:56:5 | 56 | writeln!(out, "{}", score); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: this `Result` may be an `Err` variant, which should be handled = note: `#[warn(unused_must_use)]` on by default = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
ソースコード
#![allow(non_snake_case, unused_imports)]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>()};}fn dist(x1: usize, y1: usize, x2: usize, y2: usize) -> usize {let mut ret = 0;if x1 < x2 {ret += x2 - x1;} else {ret += x1 - x2;}if y1 < y2 {ret += y2 - y1;} else {ret += y1 - y2;}ret}let N = input!(usize);let XY = (0..N).map(|_| (input!(usize), input!(usize))).collect::<Vec<_>>();let mut score = 1 << 60;for i in 0..=300 {for j in 0..=300 {let mut s = 0;for k in 0..N {let (x, y) = XY[k];s += dist(i, j, x, y);}if s < score {score = s;}}}writeln!(out, "{}", score);}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())}}}}