Submission #1150668

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150668		eri16	Separator (CEOI19_separator)	C++20	0 / 100	1 ms	328 KiB

separator

#include <bits/stdc++.h>

using namespace std;

const int MOD = 1e9 + 7; // A prime modulus is better

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    long long a, b, max1 = 0;
    cin >> a;

    vector<int> v;
    v.reserve(a);  // Preallocating space

    cin >> b;
    max1 = b;
    v.push_back(b);
    
    cout << 1 << '\n';

    for (int i = 1; i < a; i++) {
        cin >> b;
        b = (b + v.size()) % MOD;

        // Efficiently remove elements greater than b
        auto it = lower_bound(v.begin(), v.end(), b);
        v.erase(it, v.end());

        if (b > max1) {
            v.push_back(b);
            max1 = b;
        }

        cout << v.size() << '\n';
    }
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40
• Subtask 4: 0 / 10