結果
問題 | No.949 飲酒プログラミングコンテスト |
ユーザー | akiradeveloper |
提出日時 | 2019-12-12 15:23:51 |
言語 | Rust (1.77.0) |
結果 |
AC
|
実行時間 | 245 ms / 2,500 ms |
コード長 | 7,353 bytes |
コンパイル時間 | 1,671 ms |
コンパイル使用メモリ | 166,532 KB |
実行使用メモリ | 71,588 KB |
最終ジャッジ日時 | 2023-09-07 07:29:48 |
合計ジャッジ時間 | 6,574 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge11 |
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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
4,376 KB |
testcase_01 | AC | 1 ms
4,380 KB |
testcase_02 | AC | 1 ms
4,380 KB |
testcase_03 | AC | 1 ms
4,380 KB |
testcase_04 | AC | 2 ms
4,376 KB |
testcase_05 | AC | 1 ms
4,376 KB |
testcase_06 | AC | 1 ms
4,500 KB |
testcase_07 | AC | 1 ms
4,380 KB |
testcase_08 | AC | 3 ms
4,376 KB |
testcase_09 | AC | 1 ms
4,376 KB |
testcase_10 | AC | 2 ms
4,380 KB |
testcase_11 | AC | 169 ms
50,944 KB |
testcase_12 | AC | 175 ms
51,728 KB |
testcase_13 | AC | 155 ms
45,712 KB |
testcase_14 | AC | 20 ms
7,132 KB |
testcase_15 | AC | 110 ms
35,416 KB |
testcase_16 | AC | 204 ms
64,932 KB |
testcase_17 | AC | 26 ms
9,076 KB |
testcase_18 | AC | 234 ms
68,368 KB |
testcase_19 | AC | 134 ms
51,212 KB |
testcase_20 | AC | 29 ms
11,428 KB |
testcase_21 | AC | 9 ms
5,344 KB |
testcase_22 | AC | 17 ms
10,080 KB |
testcase_23 | AC | 2 ms
4,376 KB |
testcase_24 | AC | 126 ms
37,792 KB |
testcase_25 | AC | 245 ms
71,588 KB |
testcase_26 | AC | 245 ms
71,540 KB |
testcase_27 | AC | 225 ms
71,528 KB |
testcase_28 | AC | 245 ms
71,548 KB |
testcase_29 | AC | 196 ms
71,548 KB |
testcase_30 | AC | 121 ms
71,588 KB |
testcase_31 | AC | 86 ms
71,548 KB |
testcase_32 | AC | 236 ms
71,548 KB |
コンパイルメッセージ
warning: unused variable: `out` --> Main.rs:112:13 | 112 | let mut out = BufWriter::new(out.lock()); | ^^^ help: if this is intentional, prefix it with an underscore: `_out` | = note: `#[warn(unused_variables)]` on by default warning: variable does not need to be mutable --> Main.rs:112:9 | 112 | let mut out = BufWriter::new(out.lock()); | ----^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: 2 warnings emitted
ソースコード
#[doc = " https://github.com/hatoo/competitive-rust-snippets"] #[allow(unused_imports)] use std::cmp::{max, min, Ordering}; #[allow(unused_imports)] use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque}; #[allow(unused_imports)] use std::io::{stdin, stdout, BufWriter, Write}; #[allow(unused_imports)] use std::iter::FromIterator; #[macro_export] macro_rules ! chmax { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: max ( $ x ,$ v ) ; ) + } ; } #[macro_export] macro_rules ! chmin { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: min ( $ x ,$ v ) ; ) + } ; } #[macro_export] macro_rules ! max { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: max ( $ x , max ! ( $ ( $ xs ) ,+ ) ) } ; } #[macro_export] macro_rules ! min { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: min ( $ x , min ! ( $ ( $ xs ) ,+ ) ) } ; } #[macro_export] macro_rules ! dvec { ( $ t : expr ; $ len : expr ) => { vec ! [ $ t ; $ len ] } ; ( $ t : expr ; $ len : expr , $ ( $ rest : expr ) ,* ) => { vec ! [ dvec ! ( $ t ; $ ( $ rest ) ,* ) ; $ len ] } ; } #[allow(unused_macros)] macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } } #[macro_export] macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut parser = Parser :: from_str ( $ s ) ; input_inner ! { parser , $ ( $ r ) * } } ; ( parser = $ parser : ident , $ ( $ r : tt ) * ) => { input_inner ! { $ parser , $ ( $ r ) * } } ; ( new_stdin_parser = $ parser : ident , $ ( $ r : tt ) * ) => { let stdin = std :: io :: stdin ( ) ; let reader = std :: io :: BufReader :: new ( stdin . lock ( ) ) ; let mut $ parser = Parser :: new ( reader ) ; input_inner ! { $ parser , $ ( $ r ) * } } ; ( $ ( $ r : tt ) * ) => { input ! { new_stdin_parser = parser , $ ( $ r ) * } } ; } #[macro_export] macro_rules ! input_inner { ( $ parser : ident ) => { } ; ( $ parser : ident , ) => { } ; ( $ parser : ident , $ var : ident : $ t : tt $ ( $ r : tt ) * ) => { let $ var = read_value ! ( $ parser , $ t ) ; input_inner ! { $ parser $ ( $ r ) * } } ; } #[macro_export] macro_rules ! read_value { ( $ parser : ident , ( $ ( $ t : tt ) ,* ) ) => { ( $ ( read_value ! ( $ parser , $ t ) ) ,* ) } ; ( $ parser : ident , [ $ t : tt ; $ len : expr ] ) => { ( 0 ..$ len ) . map ( | _ | read_value ! ( $ parser , $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ parser : ident , chars ) => { read_value ! ( $ parser , String ) . chars ( ) . collect ::< Vec < char >> ( ) } ; ( $ parser : ident , usize1 ) => { read_value ! ( $ parser , usize ) - 1 } ; ( $ parser : ident , $ t : ty ) => { $ parser . next ::<$ t > ( ) . expect ( "Parse error" ) } ; } use std::io; use std::io::BufRead; use std::str; pub struct Parser<R> { reader: R, buf: Vec<u8>, pos: usize, } impl Parser<io::Empty> { pub fn from_str(s: &str) -> Parser<io::Empty> { Parser { reader: io::empty(), buf: s.as_bytes().to_vec(), pos: 0, } } } impl<R: BufRead> Parser<R> { pub fn new(reader: R) -> Parser<R> { Parser { reader: reader, buf: vec![], pos: 0, } } pub fn update_buf(&mut self) { self.buf.clear(); self.pos = 0; loop { let (len, complete) = { let buf2 = self.reader.fill_buf().unwrap(); self.buf.extend_from_slice(buf2); let len = buf2.len(); if len == 0 { break; } (len, buf2[len - 1] <= 0x20) }; self.reader.consume(len); if complete { break; } } } pub fn next<T: str::FromStr>(&mut self) -> Result<T, T::Err> { loop { let mut begin = self.pos; while begin < self.buf.len() && (self.buf[begin] <= 0x20) { begin += 1; } let mut end = begin; while end < self.buf.len() && (self.buf[end] > 0x20) { end += 1; } if begin != self.buf.len() { self.pos = end; return str::from_utf8(&self.buf[begin..end]).unwrap().parse::<T>(); } else { self.update_buf(); } } } } #[allow(unused_macros)] macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } } #[doc = " https://github.com/hatoo/competitive-rust-snippets"] const BIG_STACK_SIZE: bool = true; #[allow(dead_code)] fn main() { use std::thread; if BIG_STACK_SIZE { thread::Builder::new() .stack_size(32 * 1024 * 1024) .name("solve".into()) .spawn(solve) .unwrap() .join() .unwrap(); } else { solve(); } } fn solve() { let out = stdout(); let mut out = BufWriter::new(out.lock()); input!{ n:usize, a:[i64;n+1], b:[i64;n+1], d:[i64;n], } // 出来るだけ大きいやつをとるという戦略は正しい let mut d = d; d.sort(); d.reverse(); // a,bがi,jまで飲んで、 // dの中で消化した最小index + 1(つまり次) let mut dp = dvec![1<<30;n+1,n+1]; dp[0][0] = 0; // nlogn for i in 0..n+1 { for j in 0..n+1 { let l = dp[i][j]; if l >= n { continue; } if i+1 <= n { let a_drink = a[i+1] + b[j]; let bs = BinarySearch { lower: l as i64, upper: n as i64 -1, p: |x:i64| { d[x as usize] <= a_drink } }; let k = bs.lower_bound() as usize; chmin!(dp[i+1][j], k+1); } if j+1 <= n { let b_drink = a[i] + b[j+1]; let bs = BinarySearch { lower: l as i64, upper: n as i64 -1, p: |x:i64| { d[x as usize] <= b_drink } }; let k = bs.lower_bound() as usize; chmin!(dp[i][j+1], k+1); } } } let mut maxv = 0; for i in 0..n+1 { for j in 0..n+1 { if dp[i][j] <= n { chmax!(maxv, i+j); } } } println!("{}", maxv); } #[doc = "lower,upper are inclusive range"] pub struct BinarySearch<F> { pub p: F, pub lower: i64, pub upper: i64, } impl<F: Fn(i64) -> bool> BinarySearch<F> { #[doc = "O(log(upper-lower))"] pub fn lower_bound(&self) -> i64 { let lower = self.lower; let upper = self.upper; assert!(lower <= upper); let mut lb = lower - 1; let mut ub = upper + 1; while ub - lb > 1 { let mid = (lb + ub) / 2; if (self.p)(mid) { ub = mid; } else { lb = mid; } } let latter = ub; latter } }