oj.uz

답안 #894182

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
894182 2023-12-28T02:22:34 Z Olympia Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
17 / 100
 455 ms 262144 KB 
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <climits>
#include <cmath>
#include <cassert>
#include <algorithm>
using namespace std;
struct Node {
    int mx;
    int mn;
    int val;
    int l;
    int r;
    Node (int l, int r) {
        this->mx = INT_MIN, this->mn = INT_MAX, this->val = 0, this->l = l, this->r = r;
    }
};
Node id = {-1, -1};
struct MergeSortTree {
    vector<set<int>> vec;
    vector<int> v;
    void build (int dum, int tl, int tr) {
        if (tl == tr) {
            vec[dum] = {v[tl]};
            return;
        }
        build(2 * dum + 1, tl, (tl + tr)/2);
        build(2 * dum + 2, (tl + tr)/2 + 1, tr);
        std::set_union(std::begin(vec[2 * dum + 1]), std::end(vec[2 * dum + 1]),
                       std::begin(vec[2 * dum + 2]), std::end(vec[2 * dum + 2]),
                       std::inserter(vec[dum], std::begin(vec[dum])));
    }
    int query (int dum, int tl, int tr, int l, int r, int k) {
        if (tl >= l && tr <= r) {
            auto it = vec[dum].lower_bound(k);
            if (it == vec[dum].begin()) {
                return -INT_MAX;
            }
            return *(--it);
        }
        if (tl > r || l > tr) {
            return -INT_MAX;
        }
        return max(query(2 * dum + 1, tl, (tl + tr)/2, l, r, k), query(2 * dum + 2, (tl + tr)/2 + 1, tr, l, r, k));
    }
    int query (int l, int r, int k) {
        return query(0, 0, (int)vec.size()/2 - 1, l, r, k);
    }
    MergeSortTree (vector<int> v) {
        assert(__builtin_popcount(v.size()) == 1);
        this->v = v;
        vec.reserve((int)v.size() * 2);
        for (int i = 0; i < 2 * v.size(); i++) {
            vec.push_back({});
        }
        build(0, 0, (int)vec.size()/2 - 1);
    }
};
struct SegmentTree {
    vector<Node> vec;
    vector<int> nodes;
    MergeSortTree ms = MergeSortTree({0});
    Node merge (Node left, Node right) {
        if (left.l == -1) {
            return right;
        }
        if (right.l == -1) {
            return left;
        }
        assert(left.r == right.l - 1);
        Node ans = Node(left.l, right.r);
        ans.mn = min(left.mn, right.mn);
        ans.mx = max(left.mx, right.mx);
        ans.val = max(left.val, right.val);
        if (right.mx < left.mx) {
            ans.val = max(ans.val, left.mx + right.mx);
        } else if (right.mn < left.mx) {
            ans.val = max(ans.val, ms.query(right.l, right.r, left.mx - 1) + left.mx);
        }
        return ans;
    }
    vector<int> intervals;
    void query (int dum, int tl, int tr, int l, int r) {
        if (tl >= l && tr <= r) {
            intervals.push_back(dum);
            return;
        }
        if (tl > r || tr < l) {
            return;
        }
        query(2 * dum + 1, tl, (tl + tr)/2,l, r), query(2 * dum + 2, (tl + tr)/2 + 1, tr, l, r);
    }
    int query (int l, int r) {
        intervals.clear();
        query(0, 0, (int)vec.size()/2 - 1, l, r);
        Node ans = vec[intervals[0]];
        for (int i = 1; i < intervals.size(); i++) {
            ans = merge(ans, vec[intervals[i]]);
        }
        return ans.val;
    }
    Node build (int dum, int tl, int tr) {
        if (tl == tr) {
            vec[dum] = Node(tl, tr);
            vec[dum].mn = vec[dum].mx = nodes[tl];
            return vec[dum];
        }
        return vec[dum] = merge( build(2 * dum + 1, tl, (tl + tr)/2), build(2 * dum + 2, (tl + tr)/2 + 1, tr));
    }
    SegmentTree (vector<int> nodes) {
        this->nodes = nodes;
        int n = nodes.size();
        n = (1 << (int)log2(n)) * 2;
        vec.assign(2 * n, Node(0, 0));
        while (this->nodes.size() < vec.size()) {
            this->nodes.push_back((int)1e9);
        }
        this->ms = MergeSortTree(this->nodes);
        build(0, 0, (int)vec.size()/2 - 1);
    }
};
int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, q;
    cin >> n >> q;
    vector<int> v(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i];
    }
    SegmentTree st(v);
    while (q--) {
        int l, r, k;
        cin >> l >> r >> k;
        l--, r--;
        cout << (st.query(l, r) <= k) << '\n';
    }
}

Compilation message

sortbooks.cpp: In constructor 'MergeSortTree::MergeSortTree(std::vector<int>)':
sortbooks.cpp:55:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for (int i = 0; i < 2 * v.size(); i++) {
      |                         ~~^~~~~~~~~~~~~~
sortbooks.cpp: In member function 'int SegmentTree::query(int, int)':
sortbooks.cpp:99:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   99 |         for (int i = 1; i < intervals.size(); i++) {
      |                         ~~^~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 860 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 860 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 7 ms 2136 KB Output is correct
12 Correct 13 ms 7004 KB Output is correct
13 Correct 13 ms 6880 KB Output is correct
14 Correct 16 ms 7004 KB Output is correct
15 Correct 15 ms 6944 KB Output is correct
16 Correct 13 ms 7004 KB Output is correct
17 Correct 10 ms 6596 KB Output is correct
18 Correct 8 ms 3932 KB Output is correct

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 144 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 455 ms 101680 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 860 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 7 ms 2136 KB Output is correct
12 Correct 13 ms 7004 KB Output is correct
13 Correct 13 ms 6880 KB Output is correct
14 Correct 16 ms 7004 KB Output is correct
15 Correct 15 ms 6944 KB Output is correct
16 Correct 13 ms 7004 KB Output is correct
17 Correct 10 ms 6596 KB Output is correct
18 Correct 8 ms 3932 KB Output is correct
19 Runtime error 394 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 860 KB Output is correct
7 Correct 1 ms 860 KB Output is correct
8 Correct 1 ms 860 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 7 ms 2136 KB Output is correct
12 Correct 13 ms 7004 KB Output is correct
13 Correct 13 ms 6880 KB Output is correct
14 Correct 16 ms 7004 KB Output is correct
15 Correct 15 ms 6944 KB Output is correct
16 Correct 13 ms 7004 KB Output is correct
17 Correct 10 ms 6596 KB Output is correct
18 Correct 8 ms 3932 KB Output is correct
19 Runtime error 144 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -