結果
問題 | No.1890 Many Sequences Sum Queries |
ユーザー | cympfh |
提出日時 | 2022-05-19 01:26:27 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 416 ms / 2,000 ms |
コード長 | 4,071 bytes |
コンパイル時間 | 12,585 ms |
コンパイル使用メモリ | 379,176 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-17 05:50:43 |
合計ジャッジ時間 | 16,598 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 161 ms
6,816 KB |
testcase_01 | AC | 416 ms
6,816 KB |
testcase_02 | AC | 0 ms
6,944 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | AC | 75 ms
6,944 KB |
testcase_08 | AC | 22 ms
6,944 KB |
testcase_09 | AC | 34 ms
6,944 KB |
testcase_10 | AC | 173 ms
6,944 KB |
testcase_11 | AC | 85 ms
6,940 KB |
testcase_12 | AC | 130 ms
6,940 KB |
testcase_13 | AC | 151 ms
6,940 KB |
testcase_14 | AC | 78 ms
6,940 KB |
testcase_15 | AC | 1 ms
6,940 KB |
testcase_16 | AC | 1 ms
6,944 KB |
testcase_17 | AC | 1 ms
6,940 KB |
testcase_18 | AC | 1 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 1 ms
6,940 KB |
testcase_21 | AC | 1 ms
6,944 KB |
testcase_22 | AC | 1 ms
6,940 KB |
testcase_23 | AC | 1 ms
6,944 KB |
testcase_24 | AC | 0 ms
6,944 KB |
testcase_25 | AC | 1 ms
6,940 KB |
ソースコード
#![allow(unused_imports, unused_macros, dead_code)] use std::{cmp::*, collections::*}; /// 最初の m 項の和 fn sum(m: usize, xs: &Vec<u64>) -> u64 { let mut m = m as u64; let mut sum = 0; for &x in xs.iter() { if m > x { m -= x; sum += (1 + x) * x / 2; } else { sum += (1 + m) * m / 2; break; } } sum } trait CompleteIdx: Copy { fn mid(self, other: Self) -> Self; } macro_rules! completeidx { ( $type:ty, mid($self:ident, $other:ident) = $code:block ) => { impl CompleteIdx for $type { fn mid($self, $other: Self) -> Self { $code } } }; } completeidx! { usize, mid(self, other) = { (self + other) / 2 }} completeidx! { u128, mid(self, other) = { (self + other) / 2 }} completeidx! { u64, mid(self, other) = { (self + other) / 2 }} completeidx! { f64, mid(self, other) = { (self + other) / 2.0 }} fn lowerbound<T: CompleteIdx>(r: std::ops::Range<T>, cond: &dyn Fn(T) -> bool) -> Option<T> { if !cond(r.end) { return None; } if cond(r.start) { return Some(r.start); } let mut left = r.start; let mut right = r.end; for _ in 0..100 { let mid = T::mid(left, right); if cond(mid) { right = mid; } else { left = mid; } } Some(right) } fn main() { let mut sc = Scanner::new(); let n: usize = sc.cin(); let q: usize = sc.cin(); let xs: Vec<u64> = sc.vec(n); for _ in 0..q { let s: u64 = sc.cin(); let right = 200_00000; let left = 0; if let Some(m) = lowerbound(left..right, &|i| sum(i, &xs) >= s) { put!(m); } else { put!(-1); } } } // {{{ use std::io::{self, Write}; use std::str::FromStr; pub struct Scanner { stdin: io::Stdin, buffer: VecDeque<String>, } impl Scanner { pub fn new() -> Self { Self { stdin: io::stdin(), buffer: VecDeque::new(), } } pub fn cin<T: FromStr>(&mut self) -> T { while self.buffer.is_empty() { let mut line = String::new(); let _ = self.stdin.read_line(&mut line); for w in line.split_whitespace() { self.buffer.push_back(String::from(w)); } } self.buffer.pop_front().unwrap().parse::<T>().ok().unwrap() } pub fn usize1(&mut self) -> usize { self.cin::<usize>() - 1 } pub fn chars(&mut self) -> Vec<char> { self.cin::<String>().chars().collect() } pub fn vec<T: FromStr>(&mut self, n: usize) -> Vec<T> { (0..n).map(|_| self.cin()).collect() } } fn flush() { std::io::stdout().flush().unwrap(); } #[macro_export] macro_rules! min { (.. $x:expr) => {{ let mut it = $x.iter(); it.next().map(|z| it.fold(z, |x, y| min!(x, y))) }}; ($x:expr) => ($x); ($x:expr, $($ys:expr),*) => {{ let t = min!($($ys),*); if $x < t { $x } else { t } }} } #[macro_export] macro_rules! max { (.. $x:expr) => {{ let mut it = $x.iter(); it.next().map(|z| it.fold(z, |x, y| max!(x, y))) }}; ($x:expr) => ($x); ($x:expr, $($ys:expr),*) => {{ let t = max!($($ys),*); if $x > t { $x } else { t } }} } #[macro_export] macro_rules! trace { ($x:expr) => { #[cfg(debug_assertions)] eprintln!(">>> {} = {:?}", stringify!($x), $x) }; ($($xs:expr),*) => { trace!(($($xs),*)) } } #[macro_export] macro_rules! put { (.. $x:expr) => {{ let mut it = $x.iter(); if let Some(x) = it.next() { print!("{}", x); } for x in it { print!(" {}", x); } println!(""); }}; ($x:expr) => { println!("{}", $x) }; ($x:expr, $($xs:expr),*) => { print!("{} ", $x); put!($($xs),*) } } #[macro_export] macro_rules! ndarray { ($x:expr;) => { $x }; ($x:expr; $size:expr $( , $rest:expr )*) => { vec![ndarray!($x; $($rest),*); $size] }; } // }}}