結果
問題 | No.288 貯金箱の仕事 |
ユーザー | koba-e964 |
提出日時 | 2017-01-10 23:19:16 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 338 ms / 2,000 ms |
コード長 | 2,338 bytes |
コンパイル時間 | 13,049 ms |
コンパイル使用メモリ | 387,332 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-18 01:06:12 |
合計ジャッジ時間 | 19,446 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
(要ログイン)
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 | 6 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,816 KB |
testcase_02 | AC | 4 ms
6,820 KB |
testcase_03 | AC | 3 ms
6,816 KB |
testcase_04 | AC | 4 ms
6,816 KB |
testcase_05 | AC | 0 ms
6,816 KB |
testcase_06 | AC | 1 ms
6,820 KB |
testcase_07 | AC | 34 ms
6,816 KB |
testcase_08 | AC | 12 ms
6,816 KB |
testcase_09 | AC | 28 ms
6,816 KB |
testcase_10 | AC | 30 ms
6,820 KB |
testcase_11 | AC | 14 ms
6,816 KB |
testcase_12 | AC | 29 ms
6,816 KB |
testcase_13 | AC | 23 ms
6,820 KB |
testcase_14 | AC | 28 ms
6,816 KB |
testcase_15 | AC | 33 ms
6,820 KB |
testcase_16 | AC | 30 ms
6,816 KB |
testcase_17 | AC | 23 ms
6,820 KB |
testcase_18 | AC | 15 ms
6,820 KB |
testcase_19 | AC | 19 ms
6,820 KB |
testcase_20 | AC | 12 ms
6,816 KB |
testcase_21 | AC | 14 ms
6,816 KB |
testcase_22 | AC | 28 ms
6,816 KB |
testcase_23 | AC | 335 ms
6,816 KB |
testcase_24 | AC | 163 ms
6,820 KB |
testcase_25 | AC | 4 ms
6,820 KB |
testcase_26 | AC | 4 ms
6,816 KB |
testcase_27 | AC | 4 ms
6,820 KB |
testcase_28 | AC | 4 ms
6,820 KB |
testcase_29 | AC | 4 ms
6,820 KB |
testcase_30 | AC | 87 ms
6,820 KB |
testcase_31 | AC | 84 ms
6,816 KB |
testcase_32 | AC | 165 ms
6,820 KB |
testcase_33 | AC | 173 ms
6,816 KB |
testcase_34 | AC | 255 ms
6,816 KB |
testcase_35 | AC | 255 ms
6,816 KB |
testcase_36 | AC | 338 ms
6,820 KB |
testcase_37 | AC | 96 ms
6,820 KB |
testcase_38 | AC | 233 ms
6,820 KB |
testcase_39 | AC | 113 ms
6,816 KB |
testcase_40 | AC | 115 ms
6,816 KB |
testcase_41 | AC | 319 ms
6,816 KB |
testcase_42 | AC | 279 ms
6,820 KB |
testcase_43 | AC | 191 ms
6,816 KB |
testcase_44 | AC | 137 ms
6,820 KB |
testcase_45 | AC | 254 ms
6,816 KB |
testcase_46 | AC | 292 ms
6,820 KB |
testcase_47 | AC | 186 ms
6,820 KB |
testcase_48 | AC | 203 ms
6,820 KB |
testcase_49 | AC | 128 ms
6,820 KB |
testcase_50 | AC | 163 ms
6,816 KB |
testcase_51 | AC | 119 ms
6,816 KB |
testcase_52 | AC | 170 ms
6,816 KB |
testcase_53 | AC | 211 ms
6,820 KB |
testcase_54 | AC | 151 ms
6,816 KB |
testcase_55 | AC | 4 ms
6,816 KB |
ソースコード
#[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]; 2]; dp[0][0] = 0; for i in 0 .. n { let t = i % 2; for j in 0 .. W { dp[1 - t][j] = INF; } let cur = a[i] as usize; for j in 0 .. W { let mut mi = dp[t][j]; if j >= cur { mi = min(mi, dp[1 - t][j - cur] + 1); } dp[1 - t][j] = mi; } } if v < W as i64 { let tmp = dp[n % 2][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 % 2][(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)); }