結果

問題 No.2027 (1, 2, 3, …, N) 's Subset Sum
ユーザー Moss_LocalMoss_Local
提出日時 2022-08-05 21:23:50
言語 Rust
(1.77.0)
結果
AC  
実行時間 29 ms / 2,000 ms
コード長 4,829 bytes
コンパイル時間 4,594 ms
コンパイル使用メモリ 147,496 KB
実行使用メモリ 4,376 KB
最終ジャッジ日時 2023-10-13 21:45:18
合計ジャッジ時間 6,970 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge12
このコードへのチャレンジ（β）

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
4,348 KB
testcase_01 AC 1 ms
4,372 KB
testcase_02 AC 28 ms
4,368 KB
testcase_03 AC 1 ms
4,368 KB
testcase_04 AC 29 ms
4,372 KB
testcase_05 AC 29 ms
4,372 KB
testcase_06 AC 28 ms
4,376 KB
testcase_07 AC 5 ms
4,372 KB
testcase_08 AC 21 ms
4,376 KB
testcase_09 AC 3 ms
4,372 KB
testcase_10 AC 11 ms
4,372 KB
testcase_11 AC 4 ms
4,368 KB
testcase_12 AC 7 ms
4,372 KB
testcase_13 AC 6 ms
4,368 KB
testcase_14 AC 3 ms
4,376 KB
testcase_15 AC 5 ms
4,372 KB
testcase_16 AC 8 ms
4,368 KB
testcase_17 AC 1 ms
4,376 KB
testcase_18 AC 1 ms
4,372 KB
testcase_19 AC 1 ms
4,368 KB
testcase_20 AC 1 ms
4,376 KB
testcase_21 AC 1 ms
4,372 KB
testcase_22 AC 17 ms
4,372 KB
testcase_23 AC 9 ms
4,372 KB
testcase_24 AC 3 ms
4,372 KB
testcase_25 AC 20 ms
4,368 KB
testcase_26 AC 5 ms
4,372 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
warning: unnecessary parentheses around type
  --> Main.rs:71:15
   |
71 | fn readi() -> (i64) {
   |               ^   ^
   |
   = note: `#[warn(unused_parens)]` on by default
help: remove these parentheses
   |
71 - fn readi() -> (i64) {
71 + fn readi() -> i64 {
   |

warning: unnecessary parentheses around `if` condition
   --> Main.rs:182:12
    |
182 |         if (i != 0) {
    |            ^      ^
    |
help: remove these parentheses
    |
182 -         if (i != 0) {
182 +         if i != 0 {
    |

warning: 2 warnings emitted

ソースコード

diff # 

// -*- coding:utf-8-unix -*-
// #![feature(map_first_last)]
#![allow(dead_code)]
#![allow(unused_imports)]
#![allow(unused_macros)]
use std::any::Any;
use std::cmp::Ordering::*;
use std::collections::*;
use std::convert::*;
use std::convert::{From, Into};
use std::error::Error;
use std::fmt::Debug;
use std::fmt::Display;
use std::fs::File;
use std::hash::Hash;
use std::io::prelude::*;
use std::io::*;
use std::iter::Filter;
use std::iter::FromIterator;
use std::marker::Copy;
use std::mem::*;
use std::ops::BitAnd;
use std::ops::Bound::*;
use std::ops::RangeBounds;
use std::ops::{Add, Mul, Neg, Sub};
use std::process;
use std::slice::from_raw_parts;
use std::str;
use std::vec;

const INF: i64 = 1223372036854775807;
const UINF: usize = INF as usize;
const LINF: i64 = 2147483647;
const INF128: i128 = 1223372036854775807000000000000;
// const MOD: i64 = 1000000007;
const MOD: i64 = 998244353;
const UMOD: usize = MOD as usize;
const M_PI: f64 = 3.14159265358979323846;
// const MOD: i64 = INF;

use std::cmp::*;
use std::collections::*;
use std::io::stdin;
use std::io::stdout;
use std::io::Write;

macro_rules! p {
    ($x:expr) => {
        println!("{}", $x);
    };
}
macro_rules! d {
    ($x:expr) => {
        println!("{:?}", $x);
    };
}

fn main() {
    solve();
}

// use str::Chars;
#[allow(dead_code)]
fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

#[allow(dead_code)]
fn readi() -> (i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    iter.next().unwrap().parse::<i64>().unwrap()
}

#[allow(dead_code)]
fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}
#[allow(dead_code)]
fn read_mat<T: std::str::FromStr>(n: u32) -> Vec<Vec<T>> {
    (0..n).map(|_| read_vec()).collect()
}

#[allow(dead_code)]
fn readii() -> (i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}

#[allow(dead_code)]
fn readiii() -> (i64, i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}
#[allow(dead_code)]
fn readuu() -> (usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}

fn readcc() -> (char, char) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<char>().unwrap(),
        iter.next().unwrap().parse::<char>().unwrap(),
    )
}

fn readuuu() -> (usize, usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}
#[allow(dead_code)]
fn readiiii() -> (i64, i64, i64, i64) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
        iter.next().unwrap().parse::<i64>().unwrap(),
    )
}

#[allow(dead_code)]
fn readuuuu() -> (usize, usize, usize, usize) {
    let mut str = String::new();
    let _ = stdin().read_line(&mut str).unwrap();
    let mut iter = str.split_whitespace();
    (
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
        iter.next().unwrap().parse::<usize>().unwrap(),
    )
}

fn solve() {
    let (n, s) = readuu();
    let mut res = vec![];
    let mut x = s;
    for i in (1..=n).rev() {
        if x >= i {
            x -= i;
            res.push(i);
        }
    }
    res.sort();
    println!("{}", res.len());
    for i in 0..res.len() {
        if (i != 0) {
            print!(" ");
        }
        print!("{}", res[i])
    }
    println!("");
    return;
}
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