結果

問題 No.288 貯金箱の仕事
ユーザー koba-e964koba-e964
提出日時 2017-01-10 23:17:18
言語 Rust
(1.72.1)
結果
AC  
実行時間 602 ms / 2,000 ms
コード長 2,243 bytes
コンパイル時間 687 ms
コンパイル使用メモリ 143,316 KB
実行使用メモリ 492,992 KB
最終ジャッジ日時 2023-08-22 22:25:47
合計ジャッジ時間 12,498 ms
ジャッジサーバーID
(参考情報)
judge15 / 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 9 ms
8,808 KB
testcase_01 AC 5 ms
4,840 KB
testcase_02 AC 6 ms
5,912 KB
testcase_03 AC 3 ms
4,376 KB
testcase_04 AC 5 ms
5,916 KB
testcase_05 AC 1 ms
4,376 KB
testcase_06 AC 1 ms
4,380 KB
testcase_07 AC 63 ms
51,756 KB
testcase_08 AC 19 ms
17,516 KB
testcase_09 AC 48 ms
41,024 KB
testcase_10 AC 53 ms
44,960 KB
testcase_11 AC 24 ms
20,424 KB
testcase_12 AC 48 ms
40,220 KB
testcase_13 AC 38 ms
33,368 KB
testcase_14 AC 47 ms
39,172 KB
testcase_15 AC 57 ms
47,868 KB
testcase_16 AC 51 ms
41,988 KB
testcase_17 AC 37 ms
31,252 KB
testcase_18 AC 26 ms
22,464 KB
testcase_19 AC 33 ms
28,344 KB
testcase_20 AC 21 ms
18,536 KB
testcase_21 AC 24 ms
20,340 KB
testcase_22 AC 48 ms
40,220 KB
testcase_23 AC 602 ms
492,992 KB
testcase_24 AC 298 ms
247,976 KB
testcase_25 AC 4 ms
4,800 KB
testcase_26 AC 4 ms
4,804 KB
testcase_27 AC 4 ms
4,828 KB
testcase_28 AC 4 ms
4,800 KB
testcase_29 AC 5 ms
4,836 KB
testcase_30 AC 154 ms
127,348 KB
testcase_31 AC 156 ms
127,324 KB
testcase_32 AC 301 ms
249,828 KB
testcase_33 AC 304 ms
249,788 KB
testcase_34 AC 449 ms
372,332 KB
testcase_35 AC 447 ms
372,332 KB
testcase_36 AC 595 ms
492,964 KB
testcase_37 AC 172 ms
141,024 KB
testcase_38 AC 410 ms
340,900 KB
testcase_39 AC 202 ms
164,552 KB
testcase_40 AC 208 ms
169,504 KB
testcase_41 AC 564 ms
471,332 KB
testcase_42 AC 492 ms
409,556 KB
testcase_43 AC 349 ms
288,032 KB
testcase_44 AC 246 ms
201,788 KB
testcase_45 AC 453 ms
378,092 KB
testcase_46 AC 498 ms
414,560 KB
testcase_47 AC 331 ms
274,344 KB
testcase_48 AC 360 ms
299,728 KB
testcase_49 AC 220 ms
181,160 KB
testcase_50 AC 287 ms
237,184 KB
testcase_51 AC 207 ms
171,352 KB
testcase_52 AC 293 ms
242,892 KB
testcase_53 AC 380 ms
316,316 KB
testcase_54 AC 266 ms
219,484 KB
testcase_55 AC 5 ms
5,828 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 #

#[allow(unused_imports)]
use std::cmp::*;
#[allow(unused_imports)]
use std::collections::*;
use std::io::*;
#[allow(dead_code)]
fn getline() -> String {
    let mut ret = String::new();
    std::io::stdin().read_line(&mut ret).ok();
    return ret;
}
fn get_word() -> String {
    let mut stdin = std::io::stdin();
    let mut u8b: [u8; 1] = [0];
    loop {
        let mut buf: Vec<u8> = Vec::with_capacity(16);
        loop {
            let res = stdin.read(&mut u8b);
            if res.is_err() || res.ok().unwrap() == 0 || u8b[0] <= ' ' as u8 {
                break;
            } else {
                buf.push(u8b[0]);
            }
        }
        if buf.len() >= 1 {
            let ret = std::string::String::from_utf8(buf).unwrap();
            return ret;
        }
    }
}
fn parse<T: std::str::FromStr>(s: &str) -> T { s.parse::<T>().ok().unwrap() }

#[allow(dead_code)]
fn get<T: std::str::FromStr>() -> T { parse(&get_word()) }


fn solve(a: &[i64], v: i64) -> Option<i64> {
    if v < 0 {
        return None;
    }
    let n = a.len();
    const W: usize = 250000;
    const INF: i32 = 0x3fff_ffff;
    let mut dp: Vec<Vec<i32>> = vec![vec![INF; W]; n + 1];
    dp[0][0] = 0;
    for i in 0 .. n {
        let cur = a[i] as usize;
        for j in 0 .. W {
            let mut mi = dp[i][j];
            if j >= cur {
                mi = min(mi, dp[i + 1][j - cur] + 1);
            }
            dp[i + 1][j] = mi;
        }
    }
    if v < W as i64 {
        let tmp = dp[n][v as usize];
        if tmp >= INF {
            return None;
        }
        return Some(tmp as i64);
    }
    let biggest = a[n - 1] as i64;
    let diff = (v + 1 - W as i64 + biggest - 1) / biggest * biggest;
    assert!(v - diff < W as i64);
    let tmp = dp[n][(v - diff) as usize];
    if tmp >= INF {
        return None;
    }
    return Some(tmp as i64 + diff / biggest);
}


fn main() {
    let n: usize = get();
    let m: i64 = get();
    let a: Vec<i64> = (0 .. n).map(|_| get()).collect();
    let k: Vec<i64> = (0 .. n).map(|_| get()).collect();
    let mut diff: i64 = 0;
    for i in 0 .. n {
        diff += a[i] * k[i];
    }
    diff -= m;
    let result = solve(&a, diff);
    println!("{}", result.unwrap_or(-1));
}
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