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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#280349#7778. Turning Permutationucup-team112#WA 1ms3572kbC++2013.7kb2023-12-09 15:19:442023-12-09 15:19:45

Judging History

你现在查看的是最新测评结果

  • [2023-12-09 15:19:45]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3572kb
  • [2023-12-09 15:19:44]
  • 提交

answer

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;

namespace templates {
// type
using ll  = long long;
using ull = unsigned long long;
template <class T>
using pq = priority_queue<T>;
template <class T>
using qp = priority_queue<T, vector<T>, greater<T>>;
#define vec(T, A, ...) vector<T> A(__VA_ARGS__);
#define vvec(T, A, h, ...) vector<vector<T>> A(h, vector<T>(__VA_ARGS__));
#define vvvec(T, A, h1, h2, ...) vector<vector<vector<T>>> A(h1, vector<vector<T>>(h2, vector<T>(__VA_ARGS__)));

// for loop
#define fori1(a) for (ll _ = 0; _ < (a); _++)
#define fori2(i, a) for (ll i = 0; i < (a); i++)
#define fori3(i, a, b) for (ll i = (a); i < (b); i++)
#define fori4(i, a, b, c) for (ll i = (a); ((c) > 0 || i > (b)) && ((c) < 0 || i < (b)); i += (c))
#define overload4(a, b, c, d, e, ...) e
#define fori(...) overload4(__VA_ARGS__, fori4, fori3, fori2, fori1)(__VA_ARGS__)

// declare and input
// clang-format off
#define INT(...) int __VA_ARGS__; inp(__VA_ARGS__);
#define LL(...) ll __VA_ARGS__; inp(__VA_ARGS__);
#define STRING(...) string __VA_ARGS__; inp(__VA_ARGS__);
#define CHAR(...) char __VA_ARGS__; inp(__VA_ARGS__);
#define DOUBLE(...) double __VA_ARGS__; STRING(str___); __VA_ARGS__ = stod(str___);
#define VEC(T, A, n) vector<T> A(n); inp(A);
#define VVEC(T, A, n, m) vector<vector<T>> A(n, vector<T>(m)); inp(A);
// clang-format on

// const value
const ll MOD1   = 1000000007;
const ll MOD9   = 998244353;
const double PI = acos(-1);

// other macro
#ifndef RIN__LOCAL
#define endl "\n"
#endif
#define spa ' '
#define len(A) ll(A.size())
#define all(A) begin(A), end(A)

// function
vector<char> stoc(string &S) {
    int n = S.size();
    vector<char> ret(n);
    for (int i = 0; i < n; i++) ret[i] = S[i];
    return ret;
}
string ctos(vector<char> &S) {
    int n      = S.size();
    string ret = "";
    for (int i = 0; i < n; i++) ret += S[i];
    return ret;
}

template <class T>
auto min(const T &a) {
    return *min_element(all(a));
}
template <class T>
auto max(const T &a) {
    return *max_element(all(a));
}
template <class T, class S>
auto clamp(T &a, const S &l, const S &r) {
    return (a > r ? r : a < l ? l : a);
}
template <class T, class S>
inline bool chmax(T &a, const S &b) {
    return (a < b ? a = b, 1 : 0);
}
template <class T, class S>
inline bool chmin(T &a, const S &b) {
    return (a > b ? a = b, 1 : 0);
}
template <class T, class S>
inline bool chclamp(T &a, const S &l, const S &r) {
    auto b = clamp(a, l, r);
    return (a != b ? a = b, 1 : 0);
}

template <typename T>
T sum(vector<T> &A) {
    T tot = 0;
    for (auto a : A) tot += a;
    return tot;
}

template <typename T>
vector<T> compression(vector<T> X) {
    sort(all(X));
    X.erase(unique(all(X)), X.end());
    return X;
}

// input and output
namespace io {

// vector<T>
template <typename T>
istream &operator>>(istream &is, vector<T> &A) {
    for (auto &a : A) is >> a;
    return is;
}
template <typename T>
ostream &operator<<(ostream &os, vector<T> &A) {
    for (size_t i = 0; i < A.size(); i++) {
        os << A[i];
        if (i != A.size() - 1) os << ' ';
    }
    return os;
}

// vector<vector<T>>
template <typename T>
istream &operator>>(istream &is, vector<vector<T>> &A) {
    for (auto &a : A) is >> a;
    return is;
}
template <typename T>
ostream &operator<<(ostream &os, vector<vector<T>> &A) {
    for (size_t i = 0; i < A.size(); i++) {
        os << A[i];
        if (i != A.size() - 1) os << endl;
    }
    return os;
}

// pair<S, T>
template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &A) {
    is >> A.first >> A.second;
    return is;
}
template <typename S, typename T>
ostream &operator<<(ostream &os, pair<S, T> &A) {
    os << A.first << ' ' << A.second;
    return os;
}

// vector<pair<S, T>>
template <typename S, typename T>
istream &operator>>(istream &is, vector<pair<S, T>> &A) {
    for (size_t i = 0; i < A.size(); i++) {
        is >> A[i];
    }
    return is;
}
template <typename S, typename T>
ostream &operator<<(ostream &os, vector<pair<S, T>> &A) {
    for (size_t i = 0; i < A.size(); i++) {
        os << A[i];
        if (i != A.size() - 1) os << endl;
    }
    return os;
}

// tuple
template <typename T, size_t N>
struct TuplePrint {
    static ostream &print(ostream &os, const T &t) {
        TuplePrint<T, N - 1>::print(os, t);
        os << ' ' << get<N - 1>(t);
        return os;
    }
};
template <typename T>
struct TuplePrint<T, 1> {
    static ostream &print(ostream &os, const T &t) {
        os << get<0>(t);
        return os;
    }
};
template <typename... Args>
ostream &operator<<(ostream &os, const tuple<Args...> &t) {
    TuplePrint<decltype(t), sizeof...(Args)>::print(os, t);
    return os;
}

// io functions
void FLUSH() {
    cout << flush;
}

void print() {
    cout << endl;
}
template <class Head, class... Tail>
void print(Head &&head, Tail &&...tail) {
    cout << head;
    if (sizeof...(Tail)) cout << spa;
    print(std::forward<Tail>(tail)...);
}

template <typename T, typename S>
void prisep(vector<T> &A, S sep) {
    int n = A.size();
    for (int i = 0; i < n; i++) {
        cout << A[i];
        if (i != n - 1) cout << sep;
    }
    cout << endl;
}
template <typename T, typename S>
void priend(T A, S end) {
    cout << A << end;
}
template <typename T>
void prispa(T A) {
    priend(A, spa);
}
template <typename T, typename S>
bool printif(bool f, T A, S B) {
    if (f)
        print(A);
    else
        print(B);
    return f;
}

template <class... T>
void inp(T &...a) {
    (cin >> ... >> a);
}

} // namespace io
using namespace io;

// read graph
vector<vector<int>> read_edges(int n, int m, bool direct = false, int indexed = 1) {
    vector<vector<int>> edges(n, vector<int>());
    for (int i = 0; i < m; i++) {
        INT(u, v);
        u -= indexed;
        v -= indexed;
        edges[u].push_back(v);
        if (!direct) edges[v].push_back(u);
    }
    return edges;
}
vector<vector<int>> read_tree(int n, int indexed = 1) {
    return read_edges(n, n - 1, false, indexed);
}

template <typename T = long long>
vector<vector<pair<int, T>>> read_wedges(int n, int m, bool direct = false, int indexed = 1) {
    vector<vector<pair<int, T>>> edges(n, vector<pair<int, T>>());
    for (int i = 0; i < m; i++) {
        INT(u, v);
        T w;
        inp(w);
        u -= indexed;
        v -= indexed;
        edges[u].push_back({v, w});
        if (!direct) edges[v].push_back({u, w});
    }
    return edges;
}
template <typename T = long long>
vector<vector<pair<int, T>>> read_wtree(int n, int indexed = 1) {
    return read_wedges<T>(n, n - 1, false, indexed);
}

// yes / no
namespace yesno {

// yes
inline bool yes(bool f = true) {
    cout << (f ? "yes" : "no") << endl;
    return f;
}
inline bool Yes(bool f = true) {
    cout << (f ? "Yes" : "No") << endl;
    return f;
}
inline bool YES(bool f = true) {
    cout << (f ? "YES" : "NO") << endl;
    return f;
}

// no
inline bool no(bool f = true) {
    cout << (!f ? "yes" : "no") << endl;
    return f;
}
inline bool No(bool f = true) {
    cout << (!f ? "Yes" : "No") << endl;
    return f;
}
inline bool NO(bool f = true) {
    cout << (!f ? "YES" : "NO") << endl;
    return f;
}

// possible
inline bool possible(bool f = true) {
    cout << (f ? "possible" : "impossible") << endl;
    return f;
}
inline bool Possible(bool f = true) {
    cout << (f ? "Possible" : "Impossible") << endl;
    return f;
}
inline bool POSSIBLE(bool f = true) {
    cout << (f ? "POSSIBLE" : "IMPOSSIBLE") << endl;
    return f;
}

// impossible
inline bool impossible(bool f = true) {
    cout << (!f ? "possible" : "impossible") << endl;
    return f;
}
inline bool Impossible(bool f = true) {
    cout << (!f ? "Possible" : "Impossible") << endl;
    return f;
}
inline bool IMPOSSIBLE(bool f = true) {
    cout << (!f ? "POSSIBLE" : "IMPOSSIBLE") << endl;
    return f;
}

// Alice Bob
inline bool Alice(bool f = true) {
    cout << (f ? "Alice" : "Bob") << endl;
    return f;
}
inline bool Bob(bool f = true) {
    cout << (f ? "Bob" : "Alice") << endl;
    return f;
}

// Takahashi Aoki
inline bool Takahashi(bool f = true) {
    cout << (f ? "Takahashi" : "Aoki") << endl;
    return f;
}
inline bool Aoki(bool f = true) {
    cout << (f ? "Aoki" : "Takahashi") << endl;
    return f;
}

} // namespace yesno
using namespace yesno;

} // namespace templates
using namespace templates;

void solve() {
    LL(n, k);
    vvec(ll, Comb, n + 1, n + 1);
    Comb[0][0] = 1;
    fori(i, 1, n + 1) {
        Comb[i][0] = 1;
        fori(j, 1, i + 1) {
            Comb[i][j] = Comb[i - 1][j - 1] + Comb[i - 1][j];
        }
    }

    vec(ll, C, n + 1);
    C[0] = 1;
    C[1] = 1;
    C[2] = 1;
    vec(ll, dp, 2, 0);
    dp[1] = 1;
    fori(i, 3, n + 1) {
        auto ndp = dp;
        ndp.push_back(0);
        fori(j, i - 2, -1, -1) {
            ndp[j] += ndp[j + 1];
        }
        dp = ndp;
        reverse(all(dp));
        ll tot   = 0;
        bool bre = false;
        for (auto d : dp) {
            tot += d;
            if (tot > k) {
                bre = true;
            }
        }
        if (bre) {
            fori(j, i, n + 1) {
                C[j] = k + 1;
            }
            break;
        }

        C[i] = tot;
    }

    if (k > 2 * C[n]) {
        print(-1);
        return;
    }

    using T = tuple<ll, ll, ll>;
    vec(T, A, 0);
    vec(int, ans, n);

    fori(i, 1, n + 1) {
        ll x           = Comb[n - 1][i - 1];
        __int128_t tim = __int128_t(C[i - 1]) * __int128_t(C[n - i]);
        if (tim >= k) {
            ans[0] = i;
            if (i != 1) {
                if (i == 2 or (i % 2 == 1)) {
                    A.push_back({1, i, 1});
                } else {
                    A.push_back({1, i, 2});
                }
            }
            if (i != n) {
                if (i == n - 1) {
                    A.push_back({i + 1, n + 1, n});
                } else {
                    A.push_back({i + 1, n + 1, i + 2});
                }
            }
            break;
        }
        tim *= x;
        if (tim >= k) {
            ans[0] = i;
            if (i != 1) {
                if (i == 2 or (i % 2 == 1)) {
                    A.push_back({1, i, 1});
                } else {
                    A.push_back({1, i, 2});
                }
            }
            if (i != n) {
                if (i == n - 1) {
                    A.push_back({i + 1, n + 1, n});
                } else {
                    A.push_back({i + 1, n + 1, i + 2});
                }
            }
            break;
        }
        k -= tim;
    }

    auto cnt = [&](ll s) -> ll {
        __int128_t tot = 1;
        ll N           = 0;
        fori(ai, len(A)) {
            auto [l, r, _] = A[ai];
            N += r - l;
        }
        N--;

        fori(ai, len(A)) {
            auto [l, r, _] = A[ai];
            if (l <= s and s < r) {
                if (l + 1 == r) {
                } else {
                    tot *= C[s - l];
                    if (tot >= k) return k + 1;
                    tot *= C[r - s - 1];
                    if (tot >= k) return k + 1;

                    tot *= Comb[N][s - l];
                    if (tot >= k) return k + 1;
                    N -= s - l;
                    tot *= Comb[N][r - s - 1];
                    if (tot >= k) return k + 1;
                    N -= r - s - 1;
                }
            } else {
                tot *= C[r - l];
                if (tot >= k) return k + 1;
                tot *= Comb[N][r - l];
                if (tot >= k) return k + 1;
                N -= r - l;
            }
        }
        return ll(tot);
    };

    fori(p, 1, n) {
        // print("+++++++++++++++");
        // print(A);
        // print(k);
        // print(ans);
        fori(ai, len(A)) {
            auto [l, r, s] = A[ai];
            bool bre       = false;
            fori(i, s, r, 2) {
                auto c = cnt(i);
                if (c >= k) {
                    ans[p] = i;
                    vec(T, B, 0);
                    fori(bi, len(A)) {
                        if (bi != ai)
                            B.push_back(A[bi]);
                        else {
                            if (i != l) {
                                if (i == s) {
                                    B.push_back({l, i, i - 1});
                                } else {
                                    B.push_back({l, i, i - 2});
                                }
                            }
                            if (i != r - 1) {
                                if (i == r - 2) {
                                    B.push_back({i + 1, r, i + 1});
                                } else {
                                    B.push_back({i + 1, r, i + 2});
                                }
                            }
                        }
                    }
                    bre = true;
                    A   = B;
                    break;
                } else {
                    k -= c;
                }
            }
            if (bre) break;
        }
    }
    print(ans);
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    // cout << fixed << setprecision(12);
    int t;
    t = 1;
    // cin >> t;
    while (t--) solve();
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3568kb

input:

3 2

output:

2 1 3

result:

ok 3 number(s): "2 1 3"

Test #2:

score: 0
Accepted
time: 1ms
memory: 3496kb

input:

3 5

output:

-1

result:

ok 1 number(s): "-1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3512kb

input:

4 6

output:

3 1 2 4

result:

ok 4 number(s): "3 1 2 4"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3452kb

input:

4 11

output:

-1

result:

ok 1 number(s): "-1"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3464kb

input:

3 1

output:

1 3 2

result:

ok 3 number(s): "1 3 2"

Test #6:

score: 0
Accepted
time: 1ms
memory: 3468kb

input:

3 10

output:

-1

result:

ok 1 number(s): "-1"

Test #7:

score: 0
Accepted
time: 1ms
memory: 3536kb

input:

3 52

output:

-1

result:

ok 1 number(s): "-1"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3496kb

input:

3 756

output:

-1

result:

ok 1 number(s): "-1"

Test #9:

score: 0
Accepted
time: 0ms
memory: 3572kb

input:

3 7721

output:

-1

result:

ok 1 number(s): "-1"

Test #10:

score: 0
Accepted
time: 1ms
memory: 3528kb

input:

5 1

output:

1 3 2 5 4

result:

ok 5 number(s): "1 3 2 5 4"

Test #11:

score: 0
Accepted
time: 0ms
memory: 3468kb

input:

5 8

output:

2 4 1 3 5

result:

ok 5 number(s): "2 4 1 3 5"

Test #12:

score: 0
Accepted
time: 1ms
memory: 3492kb

input:

5 85

output:

-1

result:

ok 1 number(s): "-1"

Test #13:

score: 0
Accepted
time: 1ms
memory: 3508kb

input:

5 846

output:

-1

result:

ok 1 number(s): "-1"

Test #14:

score: 0
Accepted
time: 1ms
memory: 3460kb

input:

5 6957

output:

-1

result:

ok 1 number(s): "-1"

Test #15:

score: 0
Accepted
time: 0ms
memory: 3532kb

input:

8 1

output:

1 3 2 5 4 7 6 8

result:

ok 8 numbers

Test #16:

score: 0
Accepted
time: 0ms
memory: 3456kb

input:

8 7

output:

1 3 2 5 7 8 4 6

result:

ok 8 numbers

Test #17:

score: 0
Accepted
time: 0ms
memory: 3460kb

input:

8 71

output:

1 3 7 5 4 2 6 8

result:

ok 8 numbers

Test #18:

score: 0
Accepted
time: 0ms
memory: 3536kb

input:

8 863

output:

3 5 7 1 4 2 8 6

result:

ok 8 numbers

Test #19:

score: 0
Accepted
time: 0ms
memory: 3464kb

input:

8 7099

output:

-1

result:

ok 1 number(s): "-1"

Test #20:

score: -100
Wrong Answer
time: 0ms
memory: 3536kb

input:

10 100000

output:

10 8 0 6 7 9 0 0 5 0

result:

wrong answer 3rd numbers differ - expected: '4', found: '0'