結果
問題 |
No.2408 Lakes and Fish
|
ユーザー |
![]() |
提出日時 | 2023-08-12 07:09:40 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 92 ms / 2,000 ms |
コード長 | 2,000 bytes |
コンパイル時間 | 14,106 ms |
コンパイル使用メモリ | 378,020 KB |
実行使用メモリ | 5,760 KB |
最終ジャッジ日時 | 2024-11-19 05:44:50 |
合計ジャッジ時間 | 17,188 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 19 |
コンパイルメッセージ
warning: unnecessary parentheses around method argument --> src/main.rs:31:18 | 31 | s.insert((1 << 60)); | ^ ^ | = note: `#[warn(unused_parens)]` on by default help: remove these parentheses | 31 - s.insert((1 << 60)); 31 + s.insert(1 << 60); | warning: unused `Result` that must be used --> src/main.rs:48:5 | 48 | writeln!(out, "{}", ans); | ^^^^^^^^^^^^^^^^^^^^^^^^ | = 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>() }; } macro_rules! input_line { ($T: ty, $N: expr) => { (0..$N).map(|_| scan.token::<$T>()).collect::<Vec<_>>() }; } let N = input!(usize); let M = input!(usize); let L = input_line!(isize, N); let L = { let mut s = std::collections::BTreeSet::new(); for l in L { s.insert(l); } s.insert(-(1 << 30)); s.insert((1 << 60)); s }; let mut ans = 0; for _ in 0..M { let f = input!(isize); let b = input!(isize); let w = input!(isize); let p = *L.range(isize::MIN..=f).next_back().unwrap(); let p2 = *L.range(f..isize::MAX).next().unwrap(); ans += std::cmp::max(b, w - std::cmp::min(f - p, p2 - f)); } writeln!(out, "{}", ans); } 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()) } } } }