제출 #1116054

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1116054		Zero_OP	Abracadabra (CEOI22_abracadabra)	C++14	10 / 100	703 ms	524288 KiB

Main

#include <bits/stdc++.h>

using namespace std;

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

#ifdef LOCAL
    freopen("task.inp", "r", stdin);
    freopen("task.out", "w", stdout);
#endif // LOCAL

    int N, Q;
    cin >> N >> Q;

    vector<int> p(N);
    for(int i = 0; i < N; ++i){
        cin >> p[i];
        --p[i];
    }

    vector<vector<int>> results;
    results.emplace_back(p);

    auto shuffle_cards = [&](vector<int> p) -> vector<int>{
        vector<int> q;
        int i = 0, j = N / 2;
        while((i < N / 2) || (j < N)){
            if(i == N / 2) q.emplace_back(p[j++]);
            else if(j == N) q.emplace_back(p[i++]);
            else if(p[i] < p[j]) q.emplace_back(p[i++]);
            else q.emplace_back(p[j++]);
        }
        assert((int)q.size() == N);
        return q;
    };

    for(int i = 1; i <= N; ++i){
        results.emplace_back(shuffle_cards(results.back()));
    }


    while(Q--){
        int t, i;
        cin >> t >> i;
        --i;

        t = min(t, N);
        cout << results[t][i] + 1 << '\n';
    }

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25