AtCoder Beginner Contest 003

Submission #3975890

Source codeソースコード

#[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, StdoutLock, Write};
#[allow(unused_imports)]
use std::iter::FromIterator;
#[allow(unused_macros)]
macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut iter = $ s . split_whitespace ( ) ; let mut next = || { iter . next ( ) . unwrap ( ) } ; input_inner ! { next , $ ( $ r ) * } } ; ( $ ( $ 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 ) * } } ; }
#[allow(unused_macros)]
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 ) * } } ; }
#[allow(unused_macros)]
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 , bytes ) => { read_value ! ( $ next , String ) . into_bytes ( ) } ; ( $ next : expr , usize1 ) => { read_value ! ( $ next , usize ) - 1 } ; ( $ next : expr , $ t : ty ) => { $ next ( ) . parse ::<$ t > ( ) . expect ( "Parse error" ) } ; }
#[allow(dead_code)]
pub fn with_bufwriter<F: FnOnce(BufWriter<StdoutLock>) -> ()>(f: F) {
    let out = stdout();
    let writer = BufWriter::new(out.lock());
    f(writer)
}
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) } ; }
#[allow(dead_code)]
fn main() {
    input!{
        n: usize,
        k: usize,
        r: [i64; n],
    }
    let mut ans: f64 = 0.0;
    let mut r = r;
    r.sort();
    for i in n-k..n {
        ans = (ans + r[i] as f64) / 2.0;
        //debug!(ans);
    }
    println!("{:.6}", ans);
}

Submission

Task問題 C - AtCoderプログラミング講座
User nameユーザ名 wh317706
Created time投稿日時
Language言語 Rust (1.15.1)
Status状態 AC
Score得点 100
Source lengthソースコード長 2538 Byte
File nameファイル名
Exec time実行時間 2 ms
Memory usageメモリ使用量 4352 KB

Test case

Set

Set name Score得点 / Max score Cases
All 100 / 100 00_sample_01.txt,00_sample_02.txt,00_sample_03.txt,00_sample_04.txt,test_01.txt,test_02.txt,test_03.txt,test_04.txt,test_05.txt,test_06.txt,test_07.txt,test_08.txt,test_09.txt,test_10.txt,test_11.txt,test_12.txt,test_13.txt,test_14.txt,test_15.txt,test_16.txt,test_17.txt,test_18.txt,test_19.txt,test_20.txt,test_21.txt,test_22.txt,test_23.txt,test_24.txt,test_25.txt,test_26.txt,test_27.txt,test_28.txt,test_29.txt,test_30.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_sample_01.txt AC 2 ms 4352 KB
00_sample_02.txt AC 2 ms 4352 KB
00_sample_03.txt AC 2 ms 4352 KB
00_sample_04.txt AC 2 ms 4352 KB
test_01.txt AC 2 ms 4352 KB
test_02.txt AC 2 ms 4352 KB
test_03.txt AC 2 ms 4352 KB
test_04.txt AC 2 ms 4352 KB
test_05.txt AC 2 ms 4352 KB
test_06.txt AC 2 ms 4352 KB
test_07.txt AC 2 ms 4352 KB
test_08.txt AC 2 ms 4352 KB
test_09.txt AC 2 ms 4352 KB
test_10.txt AC 2 ms 4352 KB
test_11.txt AC 2 ms 4352 KB
test_12.txt AC 2 ms 4352 KB
test_13.txt AC 2 ms 4352 KB
test_14.txt AC 2 ms 4352 KB
test_15.txt AC 2 ms 4352 KB
test_16.txt AC 2 ms 4352 KB
test_17.txt AC 2 ms 4352 KB
test_18.txt AC 2 ms 4352 KB
test_19.txt AC 2 ms 4352 KB
test_20.txt AC 2 ms 4352 KB
test_21.txt AC 2 ms 4352 KB
test_22.txt AC 2 ms 4352 KB
test_23.txt AC 2 ms 4352 KB
test_24.txt AC 2 ms 4352 KB
test_25.txt AC 2 ms 4352 KB
test_26.txt AC 2 ms 4352 KB
test_27.txt AC 2 ms 4352 KB
test_28.txt AC 2 ms 4352 KB
test_29.txt AC 2 ms 4352 KB
test_30.txt AC 2 ms 4352 KB