Submission #963851

#	Time	Username	Problem	Language	Result	Execution time	Memory
963851		Pekiban	Meteors (POI11_met)	C++17	74 / 100	1434 ms	55732 KiB

met

#include <bits/stdc++.h>

using namespace std;

const int mxN = 3e5+3;
vector<int> a[mxN];
vector<array<int, 3>> v;
int p[mxN], ans[mxN], n, m, k, c = -1;
long long st[4*mxN], lz[4*mxN];
void push(int i, int l, int r) {
    if (lz[i]) {
        int mid = (l + r)/2;
        lz[2*i] += lz[i];
        st[2*i] += (mid - l + 1) * lz[i];
        lz[2*i+1] += lz[i];
        st[2*i+1] += (r - mid) * lz[i];
        lz[i] = 0;
    }
}
void update(int l, int r, long long x, int i = 1, int l2 = 0, int r2 = m-1) {
    if (l <= l2 && r2 <= r) {
        st[i] += x * (r2 - l2 + 1);
        lz[i] += x;
        return;
    }
    push(i, l2, r2);
    int m2 = (l2 + r2)/2;
    if (l <= m2) {
        update(l, r, x, 2*i, l2, m2);
    }
    if (m2+1 <= r) {
        update(l, r, x, 2*i+1, m2+1, r2);
    }
    st[i] = st[2*i] + st[2*i+1];
}
long long sum(int idx, int i = 1, int l2 = 0, int r2 = m-1) {
    if (l2 == r2) {
        return st[i];
    }
    push(i, l2, r2);
    int m2 = (l2 + r2)/2;
    return (idx <= m2 ? sum(idx, 2*i, l2, m2) : sum(idx, 2*i+1, m2+1, r2));
}
void solve(int l, int r, vector<int> b) {
    int mid = (l + r)/2;
    while (c < mid) {
        ++c;
        if (v[c][0] <= v[c][1]) {
            update(v[c][0], v[c][1], v[c][2]);
        }
        else {
            update(v[c][0], m-1, v[c][2]);
            update(0, v[c][1], v[c][2]);
        }
    }
    while (c > mid) {
        if (v[c][0] <= v[c][1]) {
            update(v[c][0], v[c][1], -v[c][2]);
        }
        else {
            update(v[c][0], m-1, -v[c][2]);
            update(0, v[c][1], -v[c][2]);
        }
        --c;
    }
    vector<int> L, R;
    for (auto x : b) {
        long long s = 0;
        for (auto i : a[x]) {
            s += sum(i);
        }
        if (s >= p[x]) {
            L.push_back(x);
            ans[x] = mid;
        }
        else {
            R.push_back(x);
        }
    }
    b.clear();
    if (l < mid && L.size()) {
        solve(l, mid-1, L);
    }
    if (mid < r && R.size()) {
        solve(mid+1, r, R);
    }
}
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    fill(ans, ans+n, -1);
    for (int i = 0; i < m; ++i) {
        int x;
        cin >> x;
        --x;
        a[x].push_back(i);
    }
    for (int i = 0; i < n; ++i) {
        cin >> p[i];
    }
    cin >> k;   
    for (int i = 0; i < k; ++i) {
        int l, r, x;
        cin >> l >> r >> x;
        --l, --r;
        v.push_back({l, r, x});
    }
    vector<int> v(n);
    iota(v.begin(), v.end(), 0);
    solve(0, k-1, v);
    for (int i = 0; i < n; ++i) {
        cout << (ans[i] == -1 ? "NIE" : to_string(ans[i]+1)) << '\n';
    }
}

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 12 / 12
• Subtask 4: 12 / 12
• Subtask 5: 13 / 13
• Subtask 6: 13 / 13
• Subtask 7: 0 / 13
• Subtask 8: 0 / 13