結果
問題 | No.878 Range High-Element Query |
ユーザー | koba-e964 |
提出日時 | 2021-10-03 20:29:41 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 53 ms / 2,000 ms |
コード長 | 3,064 bytes |
コンパイル時間 | 13,870 ms |
コンパイル使用メモリ | 391,760 KB |
実行使用メモリ | 11,648 KB |
最終ジャッジ日時 | 2024-07-21 15:21:24 |
合計ジャッジ時間 | 16,047 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 50 ms
11,008 KB |
testcase_12 | AC | 36 ms
9,344 KB |
testcase_13 | AC | 39 ms
9,216 KB |
testcase_14 | AC | 30 ms
7,680 KB |
testcase_15 | AC | 37 ms
9,216 KB |
testcase_16 | AC | 47 ms
11,008 KB |
testcase_17 | AC | 53 ms
11,648 KB |
testcase_18 | AC | 49 ms
11,520 KB |
ソースコード
#[allow(unused_imports)] use std::cmp::*; #[allow(unused_imports)] use std::collections::*; use std::io::{Write, BufWriter}; // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 macro_rules! input { ($($r:tt)*) => { let stdin = std::io::stdin(); let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock())); let mut next = move || -> String{ bytes.by_ref().map(|r|r.unwrap() as char) .skip_while(|c|c.is_whitespace()) .take_while(|c|!c.is_whitespace()) .collect() }; input_inner!{next, $($r)*} }; } macro_rules! input_inner { ($next:expr) => {}; ($next:expr,) => {}; ($next:expr, $var:ident : $t:tt $($r:tt)*) => { let $var = read_value!($next, $t); input_inner!{$next $($r)*} }; } macro_rules! read_value { ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) }; ($next:expr, [ $t:tt ; $len:expr ]) => { (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>() }; ($next:expr, chars) => { read_value!($next, String).chars().collect::<Vec<char>>() }; ($next:expr, usize1) => (read_value!($next, usize) - 1); ($next:expr, [ $t:tt ]) => {{ let len = read_value!($next, usize); read_value!($next, [$t; len]) }}; ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error")); } trait Change { fn chmax(&mut self, x: Self); fn chmin(&mut self, x: Self); } impl<T: PartialOrd> Change for T { fn chmax(&mut self, x: T) { if *self < x { *self = x; } } fn chmin(&mut self, x: T) { if *self > x { *self = x; } } } fn main() { // In order to avoid potential stack overflow, spawn a new thread. let stack_size = 104_857_600; // 100 MB let thd = std::thread::Builder::new().stack_size(stack_size); thd.spawn(|| solve()).unwrap().join().unwrap(); } fn solve() { let out = std::io::stdout(); let mut out = BufWriter::new(out.lock()); macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););} input! { n: usize, q: usize, a: [i64; n], tlr: [(i32, usize1, usize); q], } let mut ans = vec![-1; q]; let mut buc = vec![vec![]; n]; for i in 0..q { let (_, l, r) = tlr[i]; buc[l].push((r, i)); } let mut st: Vec<(i64, usize)> = vec![]; for i in (0..n).rev() { while let Some(v) = st.pop() { if v.0 > a[i] { st.push(v); break; } } st.push((a[i], i)); let m = st.len(); for &(r, idx) in &buc[i] { let mut pass = 0; let mut fail = m + 1; while fail - pass > 1 { let mid = (fail + pass) / 2; if st[m - mid].1 < r { pass = mid; } else { fail = mid; } } ans[idx] = pass as i32; } } for i in 0..q { puts!("{}\n", ans[i]); } }