oj.uz

Submission #219118

# Submission time Handle Problem Language Result Execution time Memory
219118 2020-04-03T17:13:33 Z andreiomd Fortune Telling 2 (JOI14_fortune_telling2) C++11
100 / 100
 340 ms 15584 KB 
#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

typedef pair < int, int > PII;

const int NMAX = 2e5 + 5, KMAX = 2e5 + 5;

int N, K;

PII A[NMAX];

int T[KMAX];

int q;
PII V[KMAX], Q[KMAX];

vector < PII > Queries[NMAX];

/// Fenwick Tree:
int AIB[KMAX];

static inline int UB (int X)
{
    return (X & (-X));
}

static inline void Update_1 (int pos, int val)
{
    for(int i = pos; i <= q; i += UB(i))
        AIB[i] += val;

    return;
}

static inline int Query_1 (int pos)
{
    int r = 0;

    for(int i = pos; i >= 1; i -= UB(i))
        r += AIB[i];

    return r;
}
///

/// Segment Tree:
int AINT[4 * KMAX];

static inline void Update (int Node, int a, int b, int pos, int val)
{
    if(a == b)
    {
        AINT[Node] = val;

        return;
    }

    int Mid = (a + b) >> 1;

    if(pos <= Mid)
        Update(2 * Node, a, Mid, pos, val);

    if(pos > Mid)
        Update(2 * Node + 1, Mid + 1, b, pos, val);

    AINT[Node] = max(AINT[2 * Node], AINT[2 * Node + 1]);

    return;
}

static inline int Query (int Node, int a, int b, int qa, int qb)
{
    if(qa <= a && b <= qb)
        return AINT[Node];

    int Mid = (a + b) >> 1;

    int p1 = 0, p2 = 0;

    if(qa <= Mid)
        p1 = Query(2 * Node, a, Mid, qa, qb);

    if(qb > Mid)
        p2 = Query(2 * Node + 1, Mid + 1, b, qa, qb);

    return max(p1, p2);
}
///

static inline void Read ()
{
    ios_base :: sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> N >> K;

    for(int i = 1; i <= N; ++i)
        cin >> A[i].first >> A[i].second;

    for(int i = 1; i <= K; ++i)
        cin >> T[i], V[i] = {T[i], i};

    return;
}

auto cmp = [] (PII A, PII B)
{
    if(A.first < B.first)
        return 1;

    if(A.first > B.first)
        return 0;

    if(A.second > B.second)
        return 1;

    return 0;
};

static inline void Precalculation ()
{
    sort(V + 1, V + K + 1, cmp);

    Q[++q] = V[1];
    for(int i = 2; i <= K; ++i)
        if(V[i].first != V[i - 1].first)
            Q[++q] = V[i];

    for(int i = 1; i <= q; ++i)
        Update(1, 1, q, i, Q[i].second);

    return;
}

static inline int CB1 (int X)
{
    int Left = 1, Right = q, ans = -1;

    while(Left <= Right)
    {
        int Mid = (Left + Right) >> 1;

        if(Q[Mid].first >= X)
        {
            ans = Mid;

            Right = Mid - 1;
        }
        else
            Left = Mid + 1;
    }

    return ans;
}

static inline int CB2 (int X)
{
    int Left = 1, Right = q, ans = -1;

    while(Left <= Right)
    {
        int Mid = (Left + Right) >> 1;

        if(Q[Mid].first <= X)
        {
            ans = Mid;

            Left = Mid + 1;
        }
        else
            Right = Mid - 1;
    }

    return ans;
}

static inline void Solve ()
{
    long long ans = 0;

    for(int i = 1; i <= N; ++i)
    {
        int Last_Index = 0;

        int Min = min(A[i].first, A[i].second);
        int Max = max(A[i].first, A[i].second);

        int p1 = CB1(Min);
        int p2 = CB2(Max - 1);

        if(p1 == -1 || (p1 > 0 && Q[p1].first >= Max))
            Last_Index = 0;
        else
            Last_Index = Query(1, 1, q, p1, p2);

        if(Last_Index && A[i].first < A[i].second)
            swap(A[i].first, A[i].second);

        if(Last_Index == K)
        {
            ans += 1LL * A[i].first;

            continue;
        }

        Queries[Last_Index + 1].push_back({Max, i});
    }

    int Total = 0;

    for(int i = K; i >= 1; --i)
    {
        Update_1(CB1(T[i]), 1);
        ++Total;

        if(Queries[i].empty())
            continue;

        for(auto it : Queries[i])
        {
            int Val = it.first;
            int j = it.second;

            int counts = 0;

            if(Val <= Q[q].first)
            {
                int pos_Min = CB2(Val - 1);
                int L_E = Query_1(pos_Min);

                counts = Total - L_E;
            }

            if(counts & 1)
                swap(A[j].first, A[j].second);

            ans += 1LL * A[j].first;
        }
    }

    cout << ans << '\n';

    return;
}

int main()
{
    Read();

    Precalculation();

    Solve();

    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5096 KB Output is correct
2 Correct 9 ms 5120 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 8 ms 5120 KB Output is correct
5 Correct 8 ms 5120 KB Output is correct
6 Correct 8 ms 5120 KB Output is correct
7 Correct 8 ms 5120 KB Output is correct
8 Correct 11 ms 5120 KB Output is correct
9 Correct 9 ms 5120 KB Output is correct
10 Correct 8 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 8 ms 5120 KB Output is correct
13 Correct 8 ms 5120 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5096 KB Output is correct
2 Correct 9 ms 5120 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 8 ms 5120 KB Output is correct
5 Correct 8 ms 5120 KB Output is correct
6 Correct 8 ms 5120 KB Output is correct
7 Correct 8 ms 5120 KB Output is correct
8 Correct 11 ms 5120 KB Output is correct
9 Correct 9 ms 5120 KB Output is correct
10 Correct 8 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 8 ms 5120 KB Output is correct
13 Correct 8 ms 5120 KB Output is correct
14 Correct 19 ms 5632 KB Output is correct
15 Correct 42 ms 6136 KB Output is correct
16 Correct 46 ms 6392 KB Output is correct
17 Correct 64 ms 7160 KB Output is correct
18 Correct 62 ms 7160 KB Output is correct
19 Correct 62 ms 7160 KB Output is correct
20 Correct 63 ms 7288 KB Output is correct
21 Correct 56 ms 6916 KB Output is correct
22 Correct 45 ms 6648 KB Output is correct
23 Correct 44 ms 6648 KB Output is correct
24 Correct 44 ms 6904 KB Output is correct
25 Correct 44 ms 6776 KB Output is correct
26 Correct 57 ms 7160 KB Output is correct
27 Correct 57 ms 7288 KB Output is correct
28 Correct 54 ms 7416 KB Output is correct
29 Correct 57 ms 7284 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5096 KB Output is correct
2 Correct 9 ms 5120 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 8 ms 5120 KB Output is correct
5 Correct 8 ms 5120 KB Output is correct
6 Correct 8 ms 5120 KB Output is correct
7 Correct 8 ms 5120 KB Output is correct
8 Correct 11 ms 5120 KB Output is correct
9 Correct 9 ms 5120 KB Output is correct
10 Correct 8 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 8 ms 5120 KB Output is correct
13 Correct 8 ms 5120 KB Output is correct
14 Correct 19 ms 5632 KB Output is correct
15 Correct 42 ms 6136 KB Output is correct
16 Correct 46 ms 6392 KB Output is correct
17 Correct 64 ms 7160 KB Output is correct
18 Correct 62 ms 7160 KB Output is correct
19 Correct 62 ms 7160 KB Output is correct
20 Correct 63 ms 7288 KB Output is correct
21 Correct 56 ms 6916 KB Output is correct
22 Correct 45 ms 6648 KB Output is correct
23 Correct 44 ms 6648 KB Output is correct
24 Correct 44 ms 6904 KB Output is correct
25 Correct 44 ms 6776 KB Output is correct
26 Correct 57 ms 7160 KB Output is correct
27 Correct 57 ms 7288 KB Output is correct
28 Correct 54 ms 7416 KB Output is correct
29 Correct 57 ms 7284 KB Output is correct
30 Correct 126 ms 11896 KB Output is correct
31 Correct 171 ms 12536 KB Output is correct
32 Correct 240 ms 13048 KB Output is correct
33 Correct 333 ms 14580 KB Output is correct
34 Correct 119 ms 11768 KB Output is correct
35 Correct 340 ms 14936 KB Output is correct
36 Correct 333 ms 14320 KB Output is correct
37 Correct 333 ms 14696 KB Output is correct
38 Correct 339 ms 15000 KB Output is correct
39 Correct 330 ms 15544 KB Output is correct
40 Correct 278 ms 13388 KB Output is correct
41 Correct 331 ms 15184 KB Output is correct
42 Correct 339 ms 15224 KB Output is correct
43 Correct 209 ms 13304 KB Output is correct
44 Correct 210 ms 13304 KB Output is correct
45 Correct 219 ms 13304 KB Output is correct
46 Correct 219 ms 13744 KB Output is correct
47 Correct 215 ms 13564 KB Output is correct
48 Correct 280 ms 15340 KB Output is correct
49 Correct 277 ms 15584 KB Output is correct