Submission #901321

#	Time	Username	Problem	Language	Result	Execution time	Memory
901321		tkm_algorithms	Sequence (APIO23_sequence)	C++17	0 / 100	2092 ms	6632 KiB

sequence

#include <bits/stdc++.h>

using namespace std;

int sequence(int n, vector<int> a) {
    int ans = 0;
    for (int i = 0; i < n; ++i) {
        multiset<int> x;
        for (int j = i; j < n; ++j) {
            x.insert(a[j]);
            int cnt = 0;
            int d = (j - i) >> 1;
            int b = (j - i + 1) >> 1;
            int c1 = 0, c2 = 0;
            for (auto k: x) {
                if (cnt == d)
                    c1 = k;
                if (cnt == b) {
                    c2 = k;
                    break;
                }
                ++cnt;
            }
            int l = *x.upper_bound(c1) - *x.lower_bound(c1) + 1;
            int r = *x.upper_bound(c2) - *x.lower_bound(c2) + 1;
            if (l > ans)
                ans = l;
            if (r > ans)
                ans = r;
//            cout << x.count(c1) << endl;
//            cout << x.count(c2) << endl;
        }
    }
    return ans;
}

//int main() {
//    int n;
//    cin >> n;
//    vector<int> a(n);
//    for (int i = 0; i < n; ++i)
//        cin >> a[i];
//    cout << sequence(n, a);
//    return 0;
//}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 17
• Subtask 3: 0 / 7
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 0 / 22
• Subtask 7: 0 / 18