結果

問題 No.2577 Simple Permutation Guess
ユーザー fdironiafdironia
提出日時 2023-12-06 02:49:10
言語 C++23
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 164 ms / 2,000 ms
コード長 2,525 bytes
コンパイル時間 1,223 ms
コンパイル使用メモリ 99,668 KB
実行使用メモリ 25,580 KB
平均クエリ数 248.84
最終ジャッジ日時 2024-09-27 00:59:57
合計ジャッジ時間 13,955 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
(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 26 ms
24,928 KB
testcase_01 AC 127 ms
24,812 KB
testcase_02 AC 42 ms
25,196 KB
testcase_03 AC 22 ms
24,812 KB
testcase_04 AC 59 ms
25,196 KB
testcase_05 AC 72 ms
25,196 KB
testcase_06 AC 159 ms
24,556 KB
testcase_07 AC 158 ms
25,184 KB
testcase_08 AC 157 ms
24,556 KB
testcase_09 AC 157 ms
24,556 KB
testcase_10 AC 164 ms
25,196 KB
testcase_11 AC 21 ms
24,556 KB
testcase_12 AC 19 ms
24,812 KB
testcase_13 AC 22 ms
25,196 KB
testcase_14 AC 22 ms
25,452 KB
testcase_15 AC 21 ms
24,812 KB
testcase_16 AC 21 ms
24,556 KB
testcase_17 AC 20 ms
24,812 KB
testcase_18 AC 21 ms
24,940 KB
testcase_19 AC 20 ms
24,940 KB
testcase_20 AC 20 ms
24,556 KB
testcase_21 AC 19 ms
24,812 KB
testcase_22 AC 19 ms
24,836 KB
testcase_23 AC 19 ms
24,836 KB
testcase_24 AC 21 ms
24,580 KB
testcase_25 AC 20 ms
24,964 KB
testcase_26 AC 20 ms
24,856 KB
testcase_27 AC 19 ms
25,220 KB
testcase_28 AC 20 ms
24,836 KB
testcase_29 AC 20 ms
25,476 KB
testcase_30 AC 20 ms
24,836 KB
testcase_31 AC 19 ms
24,812 KB
testcase_32 AC 20 ms
24,812 KB
testcase_33 AC 19 ms
25,052 KB
testcase_34 AC 19 ms
24,556 KB
testcase_35 AC 19 ms
24,940 KB
testcase_36 AC 20 ms
25,180 KB
testcase_37 AC 19 ms
24,836 KB
testcase_38 AC 21 ms
25,220 KB
testcase_39 AC 19 ms
25,220 KB
testcase_40 AC 19 ms
24,836 KB
testcase_41 AC 21 ms
25,220 KB
testcase_42 AC 20 ms
25,220 KB
testcase_43 AC 20 ms
24,580 KB
testcase_44 AC 20 ms
25,220 KB
testcase_45 AC 20 ms
25,220 KB
testcase_46 AC 20 ms
25,220 KB
testcase_47 AC 20 ms
24,836 KB
testcase_48 AC 21 ms
24,964 KB
testcase_49 AC 20 ms
24,824 KB
testcase_50 AC 20 ms
25,220 KB
testcase_51 AC 19 ms
24,580 KB
testcase_52 AC 21 ms
25,220 KB
testcase_53 AC 21 ms
25,220 KB
testcase_54 AC 20 ms
24,964 KB
testcase_55 AC 19 ms
24,836 KB
testcase_56 AC 19 ms
24,836 KB
testcase_57 AC 19 ms
25,208 KB
testcase_58 AC 22 ms
24,836 KB
testcase_59 AC 22 ms
25,220 KB
testcase_60 AC 21 ms
24,580 KB
testcase_61 AC 21 ms
25,476 KB
testcase_62 AC 21 ms
24,580 KB
testcase_63 AC 21 ms
24,964 KB
testcase_64 AC 21 ms
25,088 KB
testcase_65 AC 22 ms
24,836 KB
testcase_66 AC 21 ms
24,580 KB
testcase_67 AC 21 ms
25,220 KB
testcase_68 AC 22 ms
25,220 KB
testcase_69 AC 20 ms
25,220 KB
testcase_70 AC 21 ms
24,580 KB
testcase_71 AC 20 ms
25,220 KB
testcase_72 AC 20 ms
24,836 KB
testcase_73 AC 20 ms
25,196 KB
testcase_74 AC 22 ms
24,556 KB
testcase_75 AC 24 ms
24,940 KB
testcase_76 AC 24 ms
24,812 KB
testcase_77 AC 25 ms
25,580 KB
testcase_78 AC 24 ms
24,800 KB
testcase_79 AC 22 ms
24,556 KB
testcase_80 AC 24 ms
24,556 KB
testcase_81 AC 25 ms
24,812 KB
testcase_82 AC 23 ms
24,772 KB
testcase_83 AC 23 ms
24,940 KB
testcase_84 AC 24 ms
25,196 KB
testcase_85 AC 24 ms
24,940 KB
testcase_86 AC 23 ms
24,812 KB
testcase_87 AC 23 ms
24,940 KB
testcase_88 AC 23 ms
25,196 KB
testcase_89 AC 24 ms
24,556 KB
testcase_90 AC 23 ms
25,196 KB
testcase_91 AC 24 ms
24,812 KB
testcase_92 AC 132 ms
24,812 KB
testcase_93 AC 118 ms
25,196 KB
testcase_94 AC 114 ms
25,196 KB
testcase_95 AC 154 ms
25,196 KB
testcase_96 AC 154 ms
25,196 KB
testcase_97 AC 143 ms
24,556 KB
testcase_98 AC 143 ms
25,196 KB
testcase_99 AC 148 ms
24,812 KB
testcase_100 AC 120 ms
24,556 KB
testcase_101 AC 139 ms
25,196 KB
evil_1_rnd_1.txt AC 295 ms
24,556 KB
evil_1_rnd_2.txt AC 297 ms
24,812 KB
evil_2_big_1.txt AC 373 ms
24,940 KB
evil_2_big_2.txt AC 367 ms
24,556 KB
evil_2_big_3.txt AC 375 ms
25,196 KB
evil_3_sorted_1.txt AC 213 ms
24,952 KB
evil_4_sorted_rev_1.txt AC 177 ms
24,836 KB
evil_4_sorted_rev_2.txt AC 234 ms
25,076 KB
evil_400_sorted.txt AC 357 ms
25,208 KB
evil_400_sorted_rev.txt AC 370 ms
24,580 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 #

#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

using BI = vector<int>;

constexpr int LGN = 9;

BI add(const BI &a, const BI &b) {
    BI c(a.size());
    int q = 0;
    for (int i = 0; i < (int)a.size(); i++) {
        c[i] = a[i] + b[i] + q;
        int base = (3 * i + 1) * (3 * i + 2) * (3 * i + 3);
        q = c[i] >= base;
        c[i] = c[i] >= base ? c[i] - base : c[i];
    }
    return c;
}

BI div2(const BI &a) {
    BI b(a.size());
    int q = 0;
    for (int i = (int)a.size() - 1; i >= 0; i--) {
        q = q * (3 * i + 1) * (3 * i + 2) * (3 * i + 3) + a[i];
        b[i] = q / 2;
        q %= 2;
    }
    return b;
}

bool gr(const BI &a, const BI &b) {
    for (int i = (int)a.size() - 1; i >= 0; i--) {
        if (a[i] != b[i]) {
            return a[i] > b[i];
        }
    }
    return false;
}

void add(int bit[], int n, int x, int a) {
    for (; x <= n; x += x & -x) {
        bit[x] += a;
    }
}

int qry(int bit[], int n, int v) {
    int x = 0, cur = 0;
    for (int i = LGN - 1; i >= 0; i--) {
        if (x + (1 << i) <= n) {
            if (cur + bit[x+(1<<i)] <= v) {
                cur += bit[x+(1<<i)];
                x += 1 << i;
            }
        }
    }
    return x + 1;
}

void find_perm(const BI &a, int n, int p[]) {
    int bit[n+1];
    fill(bit, bit + n + 1, 0);
    for (int i = 1; i <= n; i++) {
        add(bit, n, i, 1);
    }

    for (int i = 0; i < n; i++) {
        int t = n - 1 - i, x = t / 3, y = t % 3;
        int v = y == 0 ? a[x] % (3 * x + 1) :
                y == 1 ? a[x] / (3 * x + 1) % (3 * x + 2) :
                         a[x] / (3 * x + 1) / (3 * x + 2);
        p[i] = qry(bit, n, v);
        add(bit, n, p[i], -1);
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;

    const int L = n / 3 + 1;

    BI l(L), r(L);
    r.back() = n % 3 == 0 ? 1 : n % 3 == 1 ? n : n * (n - 1);

    BI one(L);
    one[0] = 1;
    while (gr(r, add(l, one))) {
        BI mid = div2(add(l, r));

        int q[n];
        find_perm(mid, n, q);

        cout << "?";
        for (int i = 0; i < n; i++) {
            cout << " " << q[i];
        }
        cout << endl;

        int res;
        cin >> res;

        if (res == 1) {
            l = mid;
        } else {
            r = mid;
        }
    }

    int ans[n];
    find_perm(l, n, ans);

    cout << "!";
    for (int i = 0; i < n; i++) {
        cout << " " << ans[i];
    }
    cout << endl;

    return 0;
}
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