Submission #1334122

#	Time	Username	Problem	Language	Result	Execution time	Memory
1334122		SpyrosAliv	Gift Boxes (EGOI25_giftboxes)	C++20	19 / 100	110 ms	20876 KiB

Main

#include <bits/stdc++.h>
using namespace std;

void solve() {
    int t, n; cin >> t >> n;
    vector<int> cnt(t+1, 0);
    vector<int> arr(n+1);
    for (int i = 1; i <= n; i++) {
        cin >> arr[i];
        arr[i]++;
        cnt[arr[i]]++;
    }
    priority_queue<pair<int, int>> pq;
    for (int i = 1; i <= t; i++) {
        pq.push({cnt[i], i});
    }
    int bestL = 1, bestR = n;
    int l = 1, r = 1;
    cnt[arr[1]]--;
    while (l <= n) {
        while (!pq.empty() && cnt[pq.top().second] != pq.top().first) {
            int idx = pq.top().second;
            pq.pop();
            pq.push({cnt[idx], idx});
        }
        if (pq.top().first <= 1) {
            if (r - l + 1 <= bestR - bestL + 1) {
                bestL = l;
                bestR = r;
            }
            if (r == n) break;
            cnt[arr[l]]++;
            pq.push({cnt[arr[l]], arr[l]});
            l++;
        }
        else {
            if (r == n) break;
            r++;
            cnt[arr[r]]--;
            pq.push({cnt[arr[r]], arr[r]});
        }
    }
    cout << bestL - 1 << " " << bestR - 1 << "\n";
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    solve();
    return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 8 / 8
• Subtask 2: 11 / 11
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 22
• Subtask 6: 0 / 24