結果

問題 No.2390 Udon Coupon (Hard)
ユーザー 👑 MizarMizar
提出日時 2023-08-03 23:03:23
言語 JavaScript
(node v21.7.1)
結果
AC  
実行時間 119 ms / 2,000 ms
コード長 3,269 bytes
コンパイル時間 60 ms
コンパイル使用メモリ 5,376 KB
実行使用メモリ 43,392 KB
最終ジャッジ日時 2024-04-21 21:46:40
合計ジャッジ時間 7,744 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 69 ms
40,064 KB
testcase_01 AC 68 ms
40,448 KB
testcase_02 AC 69 ms
40,064 KB
testcase_03 AC 70 ms
40,320 KB
testcase_04 AC 67 ms
40,320 KB
testcase_05 AC 119 ms
43,264 KB
testcase_06 AC 66 ms
40,192 KB
testcase_07 AC 63 ms
40,064 KB
testcase_08 AC 64 ms
39,936 KB
testcase_09 AC 90 ms
43,136 KB
testcase_10 AC 69 ms
40,320 KB
testcase_11 AC 69 ms
40,192 KB
testcase_12 AC 65 ms
40,192 KB
testcase_13 AC 75 ms
40,192 KB
testcase_14 AC 73 ms
40,192 KB
testcase_15 AC 71 ms
40,192 KB
testcase_16 AC 71 ms
40,064 KB
testcase_17 AC 71 ms
40,064 KB
testcase_18 AC 73 ms
40,192 KB
testcase_19 AC 72 ms
40,064 KB
testcase_20 AC 74 ms
40,064 KB
testcase_21 AC 74 ms
40,064 KB
testcase_22 AC 73 ms
40,320 KB
testcase_23 AC 74 ms
40,192 KB
testcase_24 AC 81 ms
43,136 KB
testcase_25 AC 82 ms
43,392 KB
testcase_26 AC 80 ms
43,008 KB
testcase_27 AC 84 ms
43,136 KB
testcase_28 AC 79 ms
43,392 KB
testcase_29 AC 96 ms
43,008 KB
testcase_30 AC 94 ms
43,136 KB
testcase_31 AC 93 ms
43,008 KB
testcase_32 AC 94 ms
43,264 KB
testcase_33 AC 97 ms
43,392 KB
testcase_34 AC 111 ms
43,008 KB
testcase_35 AC 105 ms
43,008 KB
testcase_36 AC 107 ms
43,008 KB
testcase_37 AC 110 ms
43,008 KB
testcase_38 AC 110 ms
43,136 KB
testcase_39 AC 90 ms
43,008 KB
testcase_40 AC 79 ms
43,008 KB
testcase_41 AC 86 ms
43,008 KB
testcase_42 AC 82 ms
43,136 KB
testcase_43 AC 78 ms
43,008 KB
testcase_44 AC 68 ms
40,192 KB
testcase_45 AC 77 ms
43,008 KB
testcase_46 AC 70 ms
40,064 KB
testcase_47 AC 69 ms
40,192 KB
testcase_48 AC 71 ms
43,008 KB
testcase_49 AC 72 ms
40,320 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 # 

const b64str = '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';
let imports = {};
let wasm;
//const bytes = Buffer.from(b64str, 'base64');
const bytes = Uint8Array.from([...atob(b64str)].map(s=>s.charCodeAt(0)));
const wasmModule = new WebAssembly.Module(bytes);
const wasmInstance = new WebAssembly.Instance(wasmModule, imports);
wasm = wasmInstance.exports;

let l = require("fs").readFileSync("/dev/stdin", "utf8").trim().split("\n");
let n = BigInt(l[0]);
let [a1, b1] = l[1].split(" ").map(s => BigInt(s));
let [a2, b2] = l[2].split(" ").map(s => BigInt(s));
let [a3, b3] = l[3].split(" ").map(s => BigInt(s));

console.log(wasm.solve(n,a1,b1,a2,b2,a3,b3).toString());

/*

// WebAssembly Source Code (Rust):

use wasm_bindgen::prelude::*;
// wasm-pack build --release --target nodejs --no-typescript
#[wasm_bindgen]
pub fn solve(
    n: i64,
    mut a1: i64,
    mut b1: i64,
    mut a2: i64,
    mut b2: i64,
    mut a3: i64,
    mut b3: i64,
) -> i64 {
    if a2 * b1 < a1 * b2 {
        std::mem::swap(&mut a1, &mut a2);
        std::mem::swap(&mut b1, &mut b2);
    }
    if a3 * b1 < a1 * b3 {
        std::mem::swap(&mut a1, &mut a3);
        std::mem::swap(&mut b1, &mut b3);
    }
    // 除算エラー関連のコード生成を抑止
    if a1 <= 0 {
        return 0;
    }
    // a1inv = ceil(2^34 / a1) = floor((2^34 - 1) / a1) + 1
    // 2^32 / a1 <= a1inv < 2^32 / a1 + 1
    let a1inv = ((1i64 << 34) - 1) / a1 + 1;
    let (a1b2, a1b3) = (a1 * b2, a1 * b3);
    // w = max(floor(n / a1) - (a2 + a3), 0)
    let w = ((n / a1) - a2 - a3).max(0);
    let (mut r, mut p, mut s) = (0, 0, n - w * a1);
    while p < a1b2 && s >= 0 {
        let (mut q, mut t) = (0, s);
        while q < a1b3 && t >= 0 {
            // 準定数を除数とする除算の定数倍高速化
            // 0 < {a1,a2,a3} < 2^15, 0 <= t < 2000*(2*2000+1)
            // a1 * t < 2^34 --> quot = floor(ceil(2^34 / a1) * t / 2^34) = floor(t / a1)
            let quot = t * a1inv >> 34;
            debug_assert_eq!(t / a1, quot);
            r.chmax(quot * b1 + p + q);
            t -= a3;
            q += b3;
        }
        s -= a2;
        p += b2;
    }
    r + w * b1
}

trait Change {
    fn chmax(&mut self, x: Self);
    fn chmin(&mut self, x: Self);
}
impl<T: PartialOrd> Change for T {
    #[inline]
    fn chmax(&mut self, x: T) {
        if *self < x {
            *self = x;
        }
    }
    #[inline]
    fn chmin(&mut self, x: T) {
        if *self > x {
            *self = x;
        }
    }
}

*/
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