답안 #531280

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531280 2022-02-28T10:48:39 Z dreadarceus 원숭이와 사과 나무 (IZhO12_apple) C++17
0 / 100
408 ms 262148 KB
#include <bits/stdc++.h>
using namespace std;
#define int long long

class DynamicSegTree
{
    struct DSegTreeItem
    {
        int val, lazy;
        DSegTreeItem *l, *r;
    };

  public:
    DynamicSegTree(int n)
    {
        this->nodes.resize(1e7 + 1);
        this->size = n;
        this->last = 0;
        this->make_new();
    }
    void rangeUpdate(int x, int y, DSegTreeItem *cur, int l, int r)
    {
        dynamics(cur);
        if (cur->lazy)
            propagateLazy(cur, l, r);
        if (y <= l || x >= r)
            return;
        if (l >= x && r <= y)
        {
            cur->lazy = 1;
            propagateLazy(cur, l, r);
            return;
        }
        rangeUpdate(x, y, cur->l, l, (r + l) / 2);
        rangeUpdate(x, y, cur->r, (r + l) / 2, r);
        cur->val = cur->l->val + cur->r->val;
    }
    int query(int x, int y, DSegTreeItem *cur, int l, int r)
    {
        dynamics(cur);
        if (cur->lazy)
            propagateLazy(cur, l, r);
        if (y <= l || x >= r)
            return 0;
        if (l >= x && r <= y)
            return cur->val;
        return query(x, y, cur->l, l, (r + l) / 2) + query(x, y, cur->r, (r + l) / 2, r);
    }
    void rangeUpdate(int x, int y)
    {
        rangeUpdate(x, y, nodes[0], 0, size);
    }
    int query(int x, int y)
    {
        return query(x, y, nodes[0], 0, size);
    }

  private:
    int size, last;
    vector<DSegTreeItem *> nodes;
    DSegTreeItem *make_new()
    {
        DSegTreeItem *nx = new DSegTreeItem({0, 0, nullptr, nullptr});
        assert(last < (int)nodes.size());
        nodes[last] = nx;
        return nodes[last++];
    }
    void dynamics(DSegTreeItem *cur)
    {
        if (cur->l == nullptr)
            cur->l = make_new();
        if (cur->r == nullptr)
            cur->r = make_new();
    }
    void propagateLazy(DSegTreeItem *cur, int l, int r)
    {
        if (l != r - 1)
        {
            cur->l->lazy = 1;
            cur->r->lazy = 1;
        }
        cur->val = r - l;
        cur->lazy = 0;
    }
};

void solveCase()
{
    int m = 0;
    cin >> m;

    DynamicSegTree dst(1e10);

    int c = 0;
    while (m--)
    {
        int d = 0, x = 0, y = 0;
        cin >> d >> x >> y;
        if (d == 1)
            c = dst.query(x + c, y + c + 1), cout << c << '\n';
        else
            dst.rangeUpdate(x + c, y + c + 1);
    }
}

int32_t main()
{
    mt19937 rng((unsigned int)chrono::steady_clock::now().time_since_epoch().count());
    if (rng() % 100000 == 0)
        assert(false);

    ios::sync_with_stdio(false), cin.tie(NULL);
    solveCase();
}
# 결과 실행 시간 메모리 Grader output
1 Correct 29 ms 78540 KB Output is correct
2 Correct 30 ms 78556 KB Output is correct
3 Correct 28 ms 78556 KB Output is correct
4 Correct 50 ms 87780 KB Output is correct
5 Correct 49 ms 89616 KB Output is correct
6 Correct 47 ms 89200 KB Output is correct
7 Correct 48 ms 89668 KB Output is correct
8 Correct 192 ms 165892 KB Output is correct
9 Correct 366 ms 229840 KB Output is correct
10 Correct 400 ms 245852 KB Output is correct
11 Correct 400 ms 258756 KB Output is correct
12 Runtime error 408 ms 262148 KB Execution killed with signal 9
13 Halted 0 ms 0 KB -