Submission #848713

#	Time	Username	Problem	Language	Result	Execution time	Memory
848713		JoksimKaktus	Abracadabra (CEOI22_abracadabra)	C++17	10 / 100	309 ms	524288 KiB

Main

#include <bits/stdc++.h>

using namespace std;
#define ll long long

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(0);
    int n,q;
    cin >> n >> q;
    vector <int> v(n);
    int mini = 200000;
    vector <int> que[n*n];
    for(int i = 0;i < n;i++){
        cin >> v[i];
        que[0].push_back(v[i]);
        if(i < n/2){
            mini = min(mini,v[i]);
        }
    }
    int num = 1;
    while(num < n*n){
        vector<int> v1(n/2);
        vector<int> v2(n/2);
        for(int i = 0;i < n/2;i++){
            v1[i] = v[i];
            v2[i] = v[i+n/2];
        }
        int ind1 = 0;
        int ind2 = 0;
        while(ind1 < n/2 && ind2 < n/2){
            if(v1[ind1] < v2[ind2]){
                v[ind1+ind2] = v1[ind1];
                ind1++;
            }else{
                v[ind1+ind2] = v2[ind2];
                ind2++;
            }
        }
        if(ind1 < n/2){
            for(int i = ind1;i < n/2;i++){
                v[i+ind2] = v1[i];
            }
        }else{
            for(int i = ind2;i < n/2;i++){
                v[i+ind1] = v2[i];
            }
        }
        bool same = true;
        for(int i = 0;i < n;i++){
            que[num].push_back(v[i]);
            if(que[num][i] != que[num-1][i]){
                same = false;
            }
        }
        num++;
        if(same){
            break;
        }
    }

    for(int i = 0;i < q;i++){
        int a,b;
        cin >> a >> b;
        if(a >= num){
            cout << que[num-1][b-1] << "\n";
        }else {
            cout << que[a][b - 1] << "\n";
        }
    }

    return 0;
}

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