oj.uz

답안 #390140

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
390140 2021-04-15T12:42:27 Z KoD 우주 해적 (JOI14_space_pirate) C++17
47 / 100
 1753 ms 106320 KB 
#include <bits/stdc++.h>

template <class T>
using Vec = std::vector<T>;

using ll = long long;

constexpr ll INF = std::numeric_limits<ll>::max();

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

    int N;
    ll K;
    std::cin >> N >> K;
    Vec<int> A(N);
    for (auto &x: A) {
        std::cin >> x;
        x -= 1;
    }

    if (N <= 3000) {
        Vec<Vec<int>> goes(N);
        Vec<Vec<ll>> ord(N, Vec<ll>(N, INF));
        for (int u = 0; u < N; ++u) {
            goes[u].reserve(N);
            ord[u][u] = 0;
            goes[u].push_back(u);
            while (ord[u][A[goes[u].back()]] == INF) {
                const auto v = A[goes[u].back()];
                const auto k = (int) goes[u].size();
                ord[u][v] = k;
                goes[u].push_back(v);
            }
        }        
        
        const auto last = [&](const int u) {
            return goes[u].back();
        };
        const auto connects = [&](const int u) {
            return A[last(u)];
        };

        Vec<ll> loop(N);
        for (int i = 0; i < N; ++i) {
            loop[i] = ord[i][last(i)] - ord[i][connects(i)] + 1;
        }
        const auto kth = [&](const int u, const ll k) {
            if (k < (int) goes[u].size()) {
                return goes[u][k];
            }
            else {
                const auto rem = (k - (int) goes[u].size()) % loop[u];
                return goes[u][ord[u][connects(u)] + rem];
            }
        };

        Vec<int> ans(N);
        for (int a = 0; a < N; ++a) {
            for (int b = 0; b < N; ++b) {
                if (ord[0][a] >= K) {
                    ans[kth(0, K)] += 1;
                }
                else {
                    const auto rem = K - ord[0][a] - 1;
                    if (ord[b][a] >= rem) {
                        ans[kth(b, rem)] += 1;
                    }
                    else {
                        const auto idx = (rem - ord[b][a] - 1) % (ord[b][a] + 1);
                        ans[kth(b, idx)] += 1;
                    }
                }
            }
        }

        for (const auto x: ans) {
            std::cout << x << '\n';
        }
    }

    else {
        Vec<int> belong(N, -1);
        Vec<Vec<int>> cycles;

        for (int src = 0; src < N; ++src) {
            if (belong[src] == -1) {
                const auto k = (int) cycles.size();
                cycles.push_back({ });
                int u = src;
                while (belong[u] == -1) {
                    belong[u] = k;
                    cycles[k].push_back(u);
                    u = A[u];
                }
            }
        }

        auto& cycle = cycles[0];
        const auto size = (int) cycle.size();
        Vec<ll> ans(N);
        ans[cycle[K % size]] += (ll) (N - size) * N;
        for (int i = 0; i < N; ++i) {
            if (belong[i] != 0) {
                ans[i] += std::min<ll>(size, K);
            }
        }
        for (int i = 0; i < size; ++i) {
            if (i <= K) {
                ans[cycle[i]] += 1;
            }
            else {
                ans[cycle[K]] += 1;
            }
        }
        for (int len = 2; len <= size; ++len) {
            const auto k = K % len;
            ans[cycle[k]] += len - k - 1;
            ans[cycle[size - len + 1]] += k;
        }
        for (int len = 2; len <= size; ++len) {
            for (int k = K % len; k < size; k += len) {
                const ll l = std::max(k, len - 1);
                const ll r = std::min(k + len - 1, size - 1);
                if (K <= l) {
                    ans[cycle[K]] += r - l + 1;
                }
                else if (r < K) {
                    ans[cycle[k]] += r - l + 1;
                }
                else {
                    ans[cycle[k]] += K - l;
                    ans[cycle[K]] += r - K + 1;
                }
            }
        }

        for (const auto x: ans) {
            std::cout << x << '\n';
        }
    }
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct

Subtask #2
37.0 / 37.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 281 ms 83888 KB Output is correct
16 Correct 244 ms 83140 KB Output is correct
17 Correct 285 ms 84120 KB Output is correct
18 Correct 1719 ms 106188 KB Output is correct
19 Correct 1061 ms 99752 KB Output is correct
20 Correct 937 ms 101992 KB Output is correct
21 Correct 1632 ms 98924 KB Output is correct
22 Correct 760 ms 93468 KB Output is correct
23 Correct 1244 ms 98216 KB Output is correct
24 Correct 618 ms 91804 KB Output is correct
25 Correct 250 ms 83524 KB Output is correct
26 Correct 1753 ms 106320 KB Output is correct
27 Correct 764 ms 89632 KB Output is correct
28 Correct 890 ms 94428 KB Output is correct

Subtask #3
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 21 ms 2856 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 432 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 281 ms 83888 KB Output is correct
16 Correct 244 ms 83140 KB Output is correct
17 Correct 285 ms 84120 KB Output is correct
18 Correct 1719 ms 106188 KB Output is correct
19 Correct 1061 ms 99752 KB Output is correct
20 Correct 937 ms 101992 KB Output is correct
21 Correct 1632 ms 98924 KB Output is correct
22 Correct 760 ms 93468 KB Output is correct
23 Correct 1244 ms 98216 KB Output is correct
24 Correct 618 ms 91804 KB Output is correct
25 Correct 250 ms 83524 KB Output is correct
26 Correct 1753 ms 106320 KB Output is correct
27 Correct 764 ms 89632 KB Output is correct
28 Correct 890 ms 94428 KB Output is correct
29 Incorrect 21 ms 2856 KB Output isn't correct
30 Halted 0 ms 0 KB -