oj.uz

Submission #1031855

# Submission time Handle Problem Language Result Execution time Memory
1031855 2024-07-23T08:07:05 Z tvladm2009 Addk (eJOI21_addk) C++17
0 / 100
 51 ms 4180 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define int ll

const int N = 1e6 + 7;

int n, k, q, a[N];

struct Fenwick {
    vector<ll> f;
    int n;
    
    Fenwick(int nn) {
        n = nn;
        f.resize(n + 1);
    }
    
    void add(int i, int x) {
        for (; i <= n; i += i & -i) f[i] += x;
    }
    
    int sum(int i) {
        ll res = 0;
        for (; i >= 1; i -= i & -i) res += f[i];
        return res;
    }
    
    int get(int l, int r) {
        return sum(r) - sum(l - 1);
    }
};

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> k;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i];
    }
    Fenwick f1(n), f2(n), f3(n);
    for (int i = 1; i <= n; ++i) {
        f1.add(i, a[i]);
        f2.add(i, a[i] * i);
        f3.add(i, a[i] * (n - i + 1));
    }
    cin >> q;
    while (q--) {
        int t;
        cin >> t;
        if (t == 1) {
            vector<int> v(k);
            for (auto &x : v) cin >> x;
            for (auto x : v) {
                f1.add(x, -a[x]);
                f2.add(x, -a[x] * x);
                f3.add(x, -a[x] * (n - x + 1));
            }
            
            vector<int> rot;
            for (int i = 1; i < k; ++i) rot.push_back(v[i]);
            rot.push_back(v[0]);
            for (int i = 0; i < k; ++i) {
                f1.add(v[i], a[rot[i]]);
                f2.add(v[i], a[rot[i]] * v[i]);
                f3.add(v[i], a[rot[i]] * (n - v[i] + 1));
            }
            for (int i = 0; i < k; ++i) a[v[i]] = a[rot[i]];
        } else {
            int l, r, m;
            cin >> l >> r >> m;
            ll ans = 0;
            if (r - l + 1 >= 2 * m) {
                ans += f2.get(l, l + m - 1) - f1.get(l, l + m - 1) * (l - 1);
                ans += f3.get(r - m + 1, r) - f1.get(r - m + 1, r) * (n - r);
                if (l + m <= r - m) {
                    ans += f1.get(l + m, r - m) * m;
                }
            } else {
                int mid = (l + r) / 2;
                ans += f2.get(l, mid) - f1.get(l, mid) * (l - 1);
                ans += f3.get(mid + 1, r) - f1.get(mid + 1, r) * (n - r);
            }
            cout << ans << "\n";
        }
    }
    return 0;
}

Subtask #1
0 / 36.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 56.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 1728 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 51 ms 4180 KB Output isn't correct
2 Halted 0 ms 0 KB -