제출 #1345513

#제출 시각아이디문제언어결과실행 시간메모리
1345513JahonaliXHedgehog Daniyar and Algorithms (IZhO19_sortbooks)C++20
0 / 100
3096 ms55296 KiB
#include <bits/stdc++.h>

using namespace std;

#define int long long
constexpr int mod = 1e9 + 7, inf = 1e17;

struct segment_tree {
    int n;
    vector<int> t;
    segment_tree(int n) : n(n), t(n << 2, -inf) {}
    void update(int i, int x, int v = 1, int l = 0, int r = -1) {
        if (r < 0) r += n;
        if (l == r) t[v] = max(t[v], x);
        else {
            int m = (l + r) >> 1;
            if (i <= m) update(i, x, v << 1, l, m);
            else update(i, x, v << 1 | 1, m + 1, r);
            t[v] = max(t[v], x);
        }
    }
    int get(int L, int R, int v = 1, int l = 0, int r = -1) {
        if (L > R) return -inf;
        if (r < 0) r += n;
        if (L <= l && r <= R) return t[v];
        int m = (l + r) >> 1;
        if (R <= m) return get(L, R, v << 1, l, m);
        if (L > m) return get(L, R, v << 1 | 1, m + 1, r);
        return max(get(L, R, v << 1, l, m), get(L, R, v << 1 | 1, m + 1, r));
    }
};

int32_t main() {
#ifdef JahonaliX
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, q, m;
    cin >> n >> q;
    vector<int> a(n), b(n), u;
    for (int &i : a) cin >> i, u.emplace_back(i);
    sort(u.begin(), u.end()), u.erase(unique(u.begin(), u.end()), u.end()), m = u.size();
    for (int i = 0; i < n; ++i) b[i] = lower_bound(u.begin(), u.end(), a[i]) - u.begin();
    segment_tree s(m);
    while (q--) {
        int l, r, k;
        cin >> l >> r >> k, l--, r--;
        bool ok = true;
        for (int i = l; i <= r; ++i) s.update(b[i], a[i]), ok &= s.get(b[i] + 1, m - 1) + a[i] <= k; 
        cout << ok << '\n';
    }
    return 0;
}
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