結果

問題 No.527 ナップサック容量問題
ユーザー snteasntea
提出日時 2017-09-15 12:31:28
言語 Rust
(1.77.0)
結果
AC  
実行時間 14 ms / 2,000 ms
コード長 2,501 bytes
コンパイル時間 7,195 ms
コンパイル使用メモリ 155,392 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-04-25 11:29:17
合計ジャッジ時間 4,521 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
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
5,248 KB
testcase_01 AC 0 ms
5,248 KB
testcase_02 AC 1 ms
5,248 KB
testcase_03 AC 0 ms
5,376 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 3 ms
5,376 KB
testcase_06 AC 12 ms
5,376 KB
testcase_07 AC 7 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 1 ms
5,376 KB
testcase_10 AC 10 ms
5,376 KB
testcase_11 AC 5 ms
5,376 KB
testcase_12 AC 3 ms
5,376 KB
testcase_13 AC 13 ms
5,376 KB
testcase_14 AC 2 ms
5,376 KB
testcase_15 AC 4 ms
5,376 KB
testcase_16 AC 1 ms
5,376 KB
testcase_17 AC 3 ms
5,376 KB
testcase_18 AC 4 ms
5,376 KB
testcase_19 AC 1 ms
5,376 KB
testcase_20 AC 3 ms
5,376 KB
testcase_21 AC 13 ms
5,376 KB
testcase_22 AC 7 ms
5,376 KB
testcase_23 AC 11 ms
5,376 KB
testcase_24 AC 1 ms
5,376 KB
testcase_25 AC 6 ms
5,376 KB
testcase_26 AC 5 ms
5,376 KB
testcase_27 AC 5 ms
5,376 KB
testcase_28 AC 5 ms
5,376 KB
testcase_29 AC 14 ms
5,376 KB
testcase_30 AC 1 ms
5,376 KB
testcase_31 AC 1 ms
5,376 KB
testcase_32 AC 0 ms
5,376 KB
testcase_33 AC 1 ms
5,376 KB
testcase_34 AC 1 ms
5,376 KB
testcase_35 AC 5 ms
5,376 KB
testcase_36 AC 0 ms
5,376 KB
testcase_37 AC 3 ms
5,376 KB
testcase_38 AC 4 ms
5,376 KB
testcase_39 AC 4 ms
5,376 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: unused imports: `Ordering`, `min`
 --> main.rs:2:16
  |
2 | use std::cmp::{Ordering, min, max};
  |                ^^^^^^^^  ^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: unused macro definition: `parse`
  --> main.rs:19:14
   |
19 | macro_rules! parse {
   |              ^^^^^
   |
   = note: `#[warn(unused_macros)]` on by default

warning: unused macro definition: `rvec`
  --> main.rs:44:14
   |
44 | macro_rules! rvec {
   |              ^^^^

warning: unused macro definition: `readlvec`
  --> main.rs:50:14
   |
50 | macro_rules! readlvec {
   |              ^^^^^^^^

warning: unused macro definition: `debug`
  --> main.rs:60:14
   |
60 | macro_rules! debug {
   |              ^^^^^

warning: function `printvec` is never used
  --> main.rs:66:4
   |
66 | fn printvec<T>(v: &Vec<T>) where T: std::fmt::Display {
   |    ^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: variable `V` should have a snake case name
  --> main.rs:84:9
   |
84 |     let V = readl!(i32);
   |         ^ help: convert the identifier to snake case (notice the capitalization): `v`
   |
   = note: `#[warn(non_snake_case)]` on by default

warning: 7 warnings emitted

ソースコード

diff #

// use std::ops::{Index, IndexMut};
use std::cmp::{Ordering, min, max};
// use std::collections::{BinaryHeap, BTreeMap};
// use std::collections::btree_map::Entry::{Occupied, Vacant};
// use std::clone::Clone;

fn getline() -> String{
    let mut res = String::new();
    std::io::stdin().read_line(&mut res).ok();
    res
}

macro_rules! split {
    ($x: expr) => {
        ($x).trim().split(' ').collect()
    }
}

macro_rules! parse {
    ($x: expr) => {
        ($x).parse().unwrap()
    }
}

macro_rules! readl {
    ($t: ty) => {
        {
            let s = getline();
            let iv: Vec<_> = split!(s);
            let mut iter = iv.into_iter();
            iter.next().unwrap().parse::<$t>().unwrap()
        }
    };
    ($( $t: ty),+ ) => {
        {
            let s = getline();
            let iv: Vec<_> = split!(s);
            let mut iter = iv.into_iter();
            ($(iter.next().unwrap().parse::<$t>().unwrap(),)*)
        }
    };
}

macro_rules! rvec {
    ($x: expr) => {
        ($x).into_iter().map(|x| parse!(x)).collect()
    }
}

macro_rules! readlvec {
    ($t: ty) => {
        {
            let s = getline();
            let iv: Vec<_> = split!(s);
            iv.into_iter().map(|x| x.parse().unwrap()).collect::<Vec<$t>>()
        }
    }
}

macro_rules! debug {
    ($x: expr) => {
        println!("{}: {}", stringify!($x), $x)
    }
}

fn printvec<T>(v: &Vec<T>) where T: std::fmt::Display {
    for (i,e) in v.into_iter().enumerate() {
        if i != 0 {
            print!(" ");
        }
        print!("{}", e);
    }
    println!("");
}
fn main() {
    let n = readl!(usize);
    let mut v = Vec::with_capacity(n);
    let mut w = Vec::with_capacity(n);
    for _ in 0..n {
        let (x, y) = readl!(i32, i32);
        v.push(x);
        w.push(y);
    }
    let V = readl!(i32);
    let wsum: i32 = w.iter().sum();
    const INF: i32 = 1e9 as i32;
    
    let mut dp = vec![-INF; (wsum+1) as usize];
    dp[0] = 0;
    for i in 0..n {
        for j in (w[i] as usize..(wsum+1) as usize).rev() {
            dp[j] = max(dp[j], dp[j-w[i] as usize] + v[i]);
        }
    }
    let mut l = -1;
    let mut r = -1;
    let mut ma = 0;
    for j in 1..(wsum+1) as usize {
        ma = max(ma, dp[j]);
        if ma == V {
            if l == -1 {
                l = j as i32;
            }
            r = j as i32;
        }
    }
    println!("{} ", l);
    if r == wsum {
        println!("inf");
    } else {
        println!("{}", r);
    }
}
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