Submission #397976

#	Time	Username	Problem	Language	Result	Execution time	Memory
397976		Victor	Lottery (CEOI18_lot)	C++17	80 / 100	3070 ms	4972 KiB

lot

#include <bits/stdc++.h>

using namespace std;

#define rep(i, a, b) for (int i = a; i < (b); ++i)
#define per(i, a, b) for (int i = b - 1; i >= (a); --i)
#define trav(a, x) for (auto &a : x)

#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back

#define umap unordered_map
#define uset unordered_set

typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef long long ll;

const int INF = 1000000007;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);

    ushort n, l, q, mismatch[10003], groups, queryval[101];
    int arr[10003];
    cin >> n >> l;
    groups = n - l + 1;
    rep(i, 0, n) cin >> arr[i];

    umap<ushort, ushort> diffs[10003];

    cin >> q;
    vector<ushort> queries;
    queries.pb(l + 1);

    rep(i, 0, q) {
        cin >> queryval[i];
        queries.pb(queryval[i]);
    }

    sort(all(queries));
    memset(mismatch, 0, sizeof(mismatch));

    rep(i, 0, l) rep(j, i + 1, groups + i) if (arr[i] != arr[j])++ mismatch[j - i];

    rep(i, 0, groups) {
        rep(j, 1, groups - i) {
            int val = *lower_bound(all(queries), mismatch[j]);

            ++diffs[i][val];
            ++diffs[j + i][val];
        }

        rep(j, i + 1, min(int(n), groups + i)) if (arr[i] != arr[j])-- mismatch[j - i];

        rep(j, i + l + 1, n) if (arr[i + l] != arr[j])++ mismatch[j - i - l];
    }

    rep(i, 0, q) {
        rep(j, 0, groups) {
            int ans = 0;
            trav(item, diffs[j]) if (item.first <= queryval[i]) ans += item.second;
            cout << ans << ' ';
        }
        cout << "\n";
    }
    return 0;
}

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