oj.uz

Submission #308466

# Submission time Handle Problem Language Result Execution time Memory
308466 2020-10-01T09:27:21 Z andreiomd None (JOI16_matryoshka) C++11
51 / 100
 2000 ms 9720 KB 
#include <iostream>
#include <algorithm>

using namespace std;

const int NMAX = 2e5 + 1, QMAX = 2e5 + 1;
const int TMAX = (NMAX + QMAX - 1);

typedef pair < int, int > PII;
typedef pair < int, PII > PIII;

int N, Q;

PII A[NMAX];
PIII Queries[QMAX];

int B[(TMAX << 1)], V[(TMAX << 1)];

int dp[NMAX], Best[(TMAX << 1)];
int ans[QMAX];

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

    cin >> N >> Q;

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

        B[++B[0]] = A[i].first, B[++B[0]] = A[i].second;
    }

    for(int i = 1; i <= Q; ++i)
    {
        cin >> Queries[i].second.first >> Queries[i].second.second, Queries[i].first = i;

        B[++B[0]] = Queries[i].second.first, B[++B[0]] = Queries[i].second.second;
    }

    return;
}

static inline int Find (int Val)
{
    return (int)(lower_bound(V + 1, V + V[0] + 1, Val) - V);
}

static inline void Replace ()
{
    for(int i = 1; i <= N; ++i)
        A[i].first = Find(A[i].first), A[i].second = Find(A[i].second);

    for(int i = 1; i <= Q;  ++i)
        Queries[i].second.first = Find(Queries[i].second.first), Queries[i].second.second = Find(Queries[i].second.second);

    return;
}

static inline void Normalize ()
{
    sort(B + 1, B + B[0] + 1);

    V[++V[0]] = B[1];

    for(int i = 2; i <= B[0]; ++i)
        if(B[i] != B[i - 1])
            V[++V[0]] = B[i];

    Replace();

    return;
}

auto cmp_1 = [] (PII A, PII B)
{
    if(A.second < B.second)
        return 1;

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

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

    return 0;
};

auto cmp_2 = [] (PIII A, PIII B)
{
    if(A.second.second < B.second.second)
        return 1;

    return 0;
};

static inline void Sort ()
{
    sort(A + 1, A + N + 1, cmp_1);
    sort(Queries + 1, Queries + Q + 1, cmp_2);

    return;
}

static inline int my_max (int a, int b)
{
    return ((a > b) ? a : b);
}

static inline void Solve ()
{
    int Last_Valid_Position = 0;

    for(int p = 1; p <= Q; ++p)
    {
        int copy = Last_Valid_Position;

        while(Last_Valid_Position < N && A[Last_Valid_Position + 1].second <= Queries[p].second.second)
            ++Last_Valid_Position;

        for(int i = (copy + 1); i <= Last_Valid_Position; ++i)
        {
            dp[i] = 1;

            for(int j = (i - 1); j >= 1; --j)
                if(A[j].first >= A[i].first)
                    dp[i] = my_max(dp[i], dp[j] + 1);

            dp[i] = my_max(dp[i], Best[A[i].second] + 1);
            Best[A[i].second] = my_max(Best[A[i].second], dp[i]);
        }

        int Max = 0;

        for(int i = 1; i <= Last_Valid_Position; ++i)
            if(A[i].first >= Queries[p].second.first)
                Max = my_max(Max, dp[i]);

        ans[Queries[p].first] = Max;
    }

    return;
}

static inline void Write ()
{
    for(int i = 1; i <= Q; ++i)
        cout << ans[i] << '\n';

    return;
}

int main()
{
    Read();

    Normalize();

    Sort();

    Solve();

    Write();

    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 416 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 416 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 18 ms 640 KB Output is correct
24 Correct 9 ms 596 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 512 KB Output is correct
27 Correct 9 ms 512 KB Output is correct
28 Correct 8 ms 512 KB Output is correct
29 Correct 9 ms 640 KB Output is correct
30 Correct 9 ms 512 KB Output is correct
31 Correct 17 ms 512 KB Output is correct
32 Correct 17 ms 512 KB Output is correct
33 Correct 17 ms 512 KB Output is correct
34 Correct 17 ms 512 KB Output is correct
35 Correct 17 ms 512 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 416 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 18 ms 640 KB Output is correct
24 Correct 9 ms 596 KB Output is correct
25 Correct 9 ms 512 KB Output is correct
26 Correct 9 ms 512 KB Output is correct
27 Correct 9 ms 512 KB Output is correct
28 Correct 8 ms 512 KB Output is correct
29 Correct 9 ms 640 KB Output is correct
30 Correct 9 ms 512 KB Output is correct
31 Correct 17 ms 512 KB Output is correct
32 Correct 17 ms 512 KB Output is correct
33 Correct 17 ms 512 KB Output is correct
34 Correct 17 ms 512 KB Output is correct
35 Correct 17 ms 512 KB Output is correct
36 Execution timed out 2092 ms 9720 KB Time limit exceeded
37 Halted 0 ms 0 KB -