結果

問題 No.648 　お　や　す　み　
ユーザー hatoohatoo
提出日時 2018-02-09 22:52:06
言語 Rust
(1.77.0 + proconio)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 4,288 bytes
コンパイル時間 16,366 ms
コンパイル使用メモリ 390,384 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-09-13 21:00:43
合計ジャッジ時間 14,593 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
このコードへのチャレンジ
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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
6,812 KB
testcase_01 AC 0 ms
6,812 KB
testcase_02 AC 1 ms
6,816 KB
testcase_03 AC 1 ms
6,944 KB
testcase_04 AC 1 ms
6,944 KB
testcase_05 AC 1 ms
6,940 KB
testcase_06 AC 1 ms
6,944 KB
testcase_07 AC 1 ms
6,940 KB
testcase_08 AC 1 ms
6,940 KB
testcase_09 AC 1 ms
6,944 KB
testcase_10 AC 1 ms
6,944 KB
testcase_11 AC 0 ms
6,940 KB
testcase_12 AC 1 ms
6,940 KB
testcase_13 AC 1 ms
6,940 KB
testcase_14 AC 1 ms
6,940 KB
testcase_15 AC 1 ms
6,944 KB
testcase_16 AC 1 ms
6,940 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
6,940 KB
testcase_24 AC 1 ms
6,940 KB
testcase_25 AC 1 ms
6,944 KB
testcase_26 AC 1 ms
6,944 KB
testcase_27 AC 1 ms
6,940 KB
testcase_28 AC 1 ms
6,940 KB
testcase_29 AC 1 ms
6,944 KB
testcase_30 AC 1 ms
6,944 KB
testcase_31 AC 1 ms
6,944 KB
testcase_32 AC 1 ms
6,940 KB
testcase_33 AC 1 ms
6,944 KB
testcase_34 AC 1 ms
6,940 KB
testcase_35 AC 1 ms
6,940 KB
testcase_36 AC 1 ms
6,944 KB
testcase_37 AC 1 ms
6,940 KB
testcase_38 AC 1 ms
6,940 KB
testcase_39 AC 1 ms
6,940 KB
testcase_40 AC 1 ms
6,944 KB
testcase_41 AC 1 ms
6,940 KB
testcase_42 AC 1 ms
6,940 KB
testcase_43 AC 1 ms
6,940 KB
testcase_44 AC 1 ms
6,944 KB
testcase_45 AC 1 ms
6,940 KB
testcase_46 AC 1 ms
6,940 KB
testcase_47 AC 1 ms
6,940 KB
testcase_48 AC 1 ms
6,944 KB
testcase_49 AC 1 ms
6,940 KB
testcase_50 AC 1 ms
6,940 KB
testcase_51 AC 1 ms
6,944 KB
testcase_52 AC 1 ms
6,944 KB
testcase_53 AC 1 ms
6,940 KB
testcase_54 AC 1 ms
6,940 KB
testcase_55 AC 1 ms
6,940 KB
testcase_56 AC 1 ms
6,940 KB
testcase_57 AC 1 ms
6,940 KB
testcase_58 AC 1 ms
6,940 KB
testcase_59 AC 1 ms
6,940 KB
testcase_60 AC 1 ms
6,944 KB
testcase_61 AC 1 ms
6,940 KB
testcase_62 AC 1 ms
6,944 KB
testcase_63 AC 1 ms
6,940 KB
testcase_64 AC 1 ms
6,944 KB
testcase_65 AC 1 ms
6,940 KB
testcase_66 AC 1 ms
6,944 KB
testcase_67 AC 1 ms
6,940 KB
testcase_68 AC 1 ms
6,940 KB
testcase_69 AC 1 ms
6,940 KB
testcase_70 AC 1 ms
6,940 KB
testcase_71 AC 1 ms
6,944 KB
testcase_72 AC 1 ms
6,940 KB
testcase_73 AC 1 ms
6,944 KB
testcase_74 AC 1 ms
6,940 KB
testcase_75 AC 1 ms
6,940 KB
testcase_76 AC 1 ms
6,944 KB
testcase_77 AC 1 ms
6,944 KB
testcase_78 AC 1 ms
6,940 KB
testcase_79 AC 1 ms
6,948 KB
testcase_80 AC 1 ms
6,944 KB
testcase_81 AC 1 ms
6,940 KB
testcase_82 AC 1 ms
6,944 KB
testcase_83 AC 1 ms
6,940 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

/**
 *  _           _                 __                            _   _ _   _                                 _                    _                  _
 * | |         | |               / /                           | | (_) | (_)                               | |                  (_)                | |
 * | |__   __ _| |_ ___   ___   / /__ ___  _ __ ___  _ __   ___| |_ _| |_ ___   _____ ______ _ __ _   _ ___| |_ ______ ___ _ __  _ _ __  _ __   ___| |_ ___
 * | '_ \ / _` | __/ _ \ / _ \ / / __/ _ \| '_ ` _ \| '_ \ / _ \ __| | __| \ \ / / _ \______| '__| | | / __| __|______/ __| '_ \| | '_ \| '_ \ / _ \ __/ __|
 * | | | | (_| | || (_) | (_) / / (_| (_) | | | | | | |_) |  __/ |_| | |_| |\ V /  __/      | |  | |_| \__ \ |_       \__ \ | | | | |_) | |_) |  __/ |_\__ \
 * |_| |_|\__,_|\__\___/ \___/_/ \___\___/|_| |_| |_| .__/ \___|\__|_|\__|_| \_/ \___|      |_|   \__,_|___/\__|      |___/_| |_|_| .__/| .__/ \___|\__|___/
 *                                                  | |                                                                           | |   | |
 *                                                  |_|                                                                           |_|   |_|
 *
 * 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::iter::FromIterator;
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufWriter, Write};
mod util {
    use std::io::{stdin, stdout, BufWriter, StdoutLock};
    use std::str::FromStr;
    use std::fmt::Debug;
    #[allow(dead_code)]
    pub fn line() -> String {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        line.trim().to_string()
    }
    #[allow(dead_code)]
    pub fn gets<T: FromStr>() -> Vec<T>
    where
        <T as FromStr>::Err: Debug,
    {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        line.split_whitespace()
            .map(|t| t.parse().unwrap())
            .collect()
    }
    #[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 ! get { ( $ t : ty ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; line . trim ( ) . parse ::<$ t > ( ) . unwrap ( ) } } ; ( $ ( $ t : ty ) ,* ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; let mut iter = line . split_whitespace ( ) ; ( $ ( iter . next ( ) . unwrap ( ) . parse ::<$ t > ( ) . unwrap ( ) , ) * ) } } ; ( $ t : ty ; $ n : expr ) => { ( 0 ..$ n ) . map ( | _ | get ! ( $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ ( $ t : ty ) ,*; $ n : expr ) => { ( 0 ..$ n ) . map ( | _ | get ! ( $ ( $ t ) ,* ) ) . collect ::< Vec < _ >> ( ) } ; ( $ t : ty ;; ) => { { let mut line : String = String :: new ( ) ; stdin ( ) . read_line ( & mut line ) . unwrap ( ) ; line . split_whitespace ( ) . map ( | t | t . parse ::<$ t > ( ) . unwrap ( ) ) . collect ::< Vec < _ >> ( ) } } ; }
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { println ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } }
#[allow(dead_code)]
fn main() {
    let n = get!(u64);

    let mut l: u64 = 1;
    let mut r: u64 = 2_000_000_000;

    while r - l > 1 {
        let mid = (l + r) / 2;
        // debug!(l, r);

        let x = mid * (mid + 1) / 2;

        match x.cmp(&n) {
            Ordering::Equal => {
                println!("YES");
                println!("{}", mid);
                return;
            }
            Ordering::Greater => {
                r = mid - 1;
            }
            Ordering::Less => {
                l = mid + 1;
            }
        }
    }

    if l * (l + 1) / 2 == n {
        println!("YES");
        println!("{}", l);
        return;
    }
    if r * (r + 1) / 2 == n {
        println!("YES");
        println!("{}", r);
        return;
    }
    println!("NO");
}
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