oj.uz

Submission #643531

# Submission time Handle Problem Language Result Execution time Memory
643531 2022-09-22T10:32:42 Z Alexandruabcde Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
0 / 100
 470 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;

constexpr int NMAX = 1e6;
typedef pair <int, int> PII;

struct Node {
    vector <int> Order;
    int Max;
    int Worst;

    Node () {
        Order = {};
        Max = 0;
        Worst = 0;
    }
};

int N, M;

int W[NMAX + 5];
Node arb[4*NMAX+2];

void Init (int nod, int a, int b) {
    if (a == b) {
        arb[nod].Order.push_back(W[a]);

        return;
    }

    int mij = (a + b) / 2;

    Init(2*nod, a, mij);
    Init(2*nod+1, mij+1, b);

    int i = 0, j = 0;

    while (i < arb[2*nod].Order.size() && j < arb[2*nod+1].Order.size()) {
        if (arb[2*nod].Order[i] > arb[2*nod+1].Order[j]) {
            arb[nod].Worst = arb[2*nod].Order[i] + arb[2*nod+1].Order[j];

            arb[nod].Order.push_back(arb[2*nod+1].Order[j]);

            ++ j;
        }
        else {
            arb[nod].Order.push_back(arb[2*nod].Order[i]);

            ++ i;
        }
    }

    while (i < arb[2*nod].Order.size()) {
        arb[nod].Order.push_back(arb[2*nod].Order[i]);

        arb[nod].Worst = arb[2*nod].Order[i] + arb[2*nod+1].Order.back();

        ++ i;
    }

    while (j < arb[2*nod+1].Order.size()) {
        arb[nod].Order.push_back(arb[2*nod+1].Order[j]);

        ++ j;
    }

    arb[nod].Worst = max(arb[nod].Worst, max(arb[2*nod].Worst, arb[2*nod+1].Worst));
    arb[nod].Max = arb[nod].Order.back();
}

void Answer (int nod, int a, int b, int qa, int qb, int &answer, int &Maximum) {
    if (qa <= a && b <= qb) {
        answer = max(answer, arb[nod].Worst);

        auto it = upper_bound(arb[nod].Order.begin(), arb[nod].Order.end(), Maximum);

        if (it != arb[nod].Order.begin()) {
            it = prev(it);

            answer = max(answer, (*it) + Maximum);
        }

        Maximum = max(Maximum, arb[nod].Order.back());

        return;
    }

    int mij = (a + b) / 2;

    if (qa <= mij) Answer(2*nod, a, mij, qa, qb, answer, Maximum);
    if (mij < qb) Answer(2*nod+1, mij+1, b, qa, qb, answer, Maximum);
}

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

    cin >> N >> M;

    for (int i = 1; i <= N; ++ i )
        cin >> W[i];
}

int ans = 0, Max = 0;

void Solve () {
    Init(1, 1, N);

    for (int i = 1; i <= M; ++ i ) {
        int l, r, k;

        cin >> l >> r >> k;

        ans = Max = 0;

        Answer(1, 1, N, l, r, ans, Max);

        if (ans > k) cout << 0 << '\n';
        else cout << 1 << '\n';
    }
}

int main () {
    Read();
    Solve();

    return 0;
}

Compilation message

sortbooks.cpp: In function 'void Init(int, int, int)':
sortbooks.cpp:39:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     while (i < arb[2*nod].Order.size() && j < arb[2*nod+1].Order.size()) {
      |            ~~^~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:39:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     while (i < arb[2*nod].Order.size() && j < arb[2*nod+1].Order.size()) {
      |                                           ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:54:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     while (i < arb[2*nod].Order.size()) {
      |            ~~^~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:62:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     while (j < arb[2*nod+1].Order.size()) {
      |            ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 125464 KB Output is correct
2 Correct 59 ms 125560 KB Output is correct
3 Correct 67 ms 125560 KB Output is correct
4 Correct 60 ms 125516 KB Output is correct
5 Correct 61 ms 125740 KB Output is correct
6 Correct 60 ms 125500 KB Output is correct
7 Correct 60 ms 125560 KB Output is correct
8 Correct 60 ms 125600 KB Output is correct
9 Incorrect 59 ms 125496 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 125464 KB Output is correct
2 Correct 59 ms 125560 KB Output is correct
3 Correct 67 ms 125560 KB Output is correct
4 Correct 60 ms 125516 KB Output is correct
5 Correct 61 ms 125740 KB Output is correct
6 Correct 60 ms 125500 KB Output is correct
7 Correct 60 ms 125560 KB Output is correct
8 Correct 60 ms 125600 KB Output is correct
9 Incorrect 59 ms 125496 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 470 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 232 ms 140624 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 125464 KB Output is correct
2 Correct 59 ms 125560 KB Output is correct
3 Correct 67 ms 125560 KB Output is correct
4 Correct 60 ms 125516 KB Output is correct
5 Correct 61 ms 125740 KB Output is correct
6 Correct 60 ms 125500 KB Output is correct
7 Correct 60 ms 125560 KB Output is correct
8 Correct 60 ms 125600 KB Output is correct
9 Incorrect 59 ms 125496 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 125464 KB Output is correct
2 Correct 59 ms 125560 KB Output is correct
3 Correct 67 ms 125560 KB Output is correct
4 Correct 60 ms 125516 KB Output is correct
5 Correct 61 ms 125740 KB Output is correct
6 Correct 60 ms 125500 KB Output is correct
7 Correct 60 ms 125560 KB Output is correct
8 Correct 60 ms 125600 KB Output is correct
9 Incorrect 59 ms 125496 KB Output isn't correct
10 Halted 0 ms 0 KB -