結果
| 問題 |
No.2408 Lakes and Fish
|
| コンテスト | |
| ユーザー |
naut3
|
| 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())
}
}
}
}
naut3