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Submission #255090

# Submission time Handle Problem Language Result Execution time Memory
255090 2020-07-31T09:10:05 Z arujbansal Examination (JOI19_examination) C++17
2 / 100
 3000 ms 29220 KB 
#include <bits/stdc++.h>

#define FAST_IO ios_base::sync_with_stdio(false), cin.tie(nullptr)
#define FILE_IO freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define trav(e, x) for (auto &e : x)
#define pb(x) push_back(x)
#define eb(x...) emplace_back(x)
#define all(x) x.begin(), x.end()
#define sz(x) (int) (x).size()
#define lc(i) 2*i+1
#define rc(i) 2*i+2
#define int long long
using namespace std;
typedef pair<int, int> ii;

struct pupil {
    pair<int, int> math, info, total;
    int dep;
};

bool comp(pupil x, pupil y) {
    if (x.math.first != y.math.first) return x.math.first < y.math.first;
    if (x.info.first != y.info.first) return x.info.first < y.info.first;
    return x.total.first < y.total.first;
}

struct SegmentTree {
    int n;
    vector<pupil> tree;


    void init(int x) {
        n = x;
        tree.resize(4 * n);
    }

    static pupil merge(pupil x, pupil y) {
        pupil ans;
        ans.math.first = min(x.math.first, y.math.first);
        ans.math.second = max(x.math.second, y.math.second);

        ans.info.first = min(x.info.first, y.info.first);
        ans.info.second = max(x.info.second, y.info.second);

        ans.total.first = min(x.total.first, y.total.first);
        ans.total.second = max(x.total.second, y.total.second);

        ans.dep = x.dep + y.dep;

        return ans;
    }

    void build(int i, int l, int r, vector<pupil> &a) {
        if (l == r) tree[i] = a[l];
        else {
            int mid = (l + r) / 2;
            build(lc(i), l, mid, a);
            build(rc(i), mid + 1, r, a);
            tree[i] = merge(tree[lc(i)], tree[rc(i)]);
        }
    }

    int query(int i, int l, int r, int math, int info, int total) {
        //cout << i << "\n";
        if (tree[i].math.second < math || tree[i].info.second < info || tree[i].total.second < total) return 0;
        if (tree[i].math.first >= math && tree[i].info.first >= info && tree[i].total.first >= total)
            return tree[i].dep;
        int mid = (l + r) / 2;
        return query(lc(i), l, mid, math, info, total) + query(rc(i), mid + 1, r, math, info, total);

    }

    void build(vector<pupil> &a) { build(0, 0, n - 1, a); }

    int query(int math, int info, int total) { return query(0, 0, n - 1, math, info, total); }
};


signed main() {
    FAST_IO;
    //FILE_IO;

    int n, q;
    cin >> n >> q;
    vector<pupil> students(n);
    for (int i = 0; i < n; i++) {
        cin >> students[i].math.first >> students[i].info.first;
        students[i].math.second = students[i].math.first;
        students[i].info.second = students[i].info.first;
        students[i].total.first = students[i].total.second = students[i].math.first + students[i].info.first;
        students[i].dep = 1;
    }
    sort(all(students), comp);
    SegmentTree tree;
    tree.init(n);
    tree.build(students);
    //cout << tree.tree[0].math.second << " " << tree.tree[0].info.second << " " << tree.tree[0].total.second << " ";
    while (q--) {
        int x, y, z;
        cin >> x >> y >> z;
        cout << tree.query(x, y, z) << "\n";
    }
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 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 36 ms 1280 KB Output is correct
8 Correct 34 ms 1400 KB Output is correct
9 Correct 35 ms 1400 KB Output is correct
10 Correct 22 ms 1280 KB Output is correct
11 Correct 7 ms 1280 KB Output is correct
12 Correct 5 ms 1280 KB Output is correct
13 Correct 34 ms 1280 KB Output is correct
14 Correct 34 ms 1280 KB Output is correct
15 Correct 34 ms 1280 KB Output is correct
16 Correct 3 ms 1280 KB Output is correct
17 Correct 4 ms 1312 KB Output is correct
18 Correct 2 ms 1152 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3086 ms 29220 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3086 ms 29220 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 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 36 ms 1280 KB Output is correct
8 Correct 34 ms 1400 KB Output is correct
9 Correct 35 ms 1400 KB Output is correct
10 Correct 22 ms 1280 KB Output is correct
11 Correct 7 ms 1280 KB Output is correct
12 Correct 5 ms 1280 KB Output is correct
13 Correct 34 ms 1280 KB Output is correct
14 Correct 34 ms 1280 KB Output is correct
15 Correct 34 ms 1280 KB Output is correct
16 Correct 3 ms 1280 KB Output is correct
17 Correct 4 ms 1312 KB Output is correct
18 Correct 2 ms 1152 KB Output is correct
19 Execution timed out 3086 ms 29220 KB Time limit exceeded
20 Halted 0 ms 0 KB -