Submission #571907

#	Time	Username	Problem	Language	Result	Execution time	Memory
571907		piOOE	Lottery (CEOI18_lot)	C++17	45 / 100	102 ms	15956 KiB

lot

#include <bits/stdc++.h>

using namespace std;

#define sz(x) ((int)size(x))
#define all(x) begin(x), end(x)
#define trace(x) cout << #x << ": " << (x) << endl;

typedef long long ll;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }

const int N = 10000, N2 = 2000;
const ll infL = 3e18;

int a[N], g[N2][N2], n, l;

int count(int i, int j) {
    if (i == j) return 0;
    int ans = 0;
    for (int id = 0; id < l; ++id) {
        ans += (a[i + id] != a[j + id]);
    }
    return ans;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin >> n >> l;
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    if (n <= 2000) {
        for (int i = n - l - 1; i > -1; --i) {
            g[i][n - l] = g[n - l][i] = count(i, n - l);
            for (int j = 1; j <= i; ++j) {
                g[i - j][n - l - j] = g[n - l - j][i - j] =
                        g[i - j + 1][n - l - j + 1] + (a[i - j] != a[n - l - j]) - (a[i - j + l] != a[n - j]);
            }
        }
        int q;
        cin >> q;
        while (q--) {
            int k;
            cin >> k;
            for (int i = 0; i <= n - l; ++i) {
                int ans = 0;
                for (int j = 0; j <= n - l; ++j) {
                    if (i != j && g[i][j] <= k)
                        ++ans;
                }
                cout << ans << " ";
            }
            cout << '\n';
        }
    } else {
        assert(false);
    }
    return 0;
}

• Subtask 1: 25 / 25
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20