Submission #1151441

#	Time	Username	Problem	Language	Result	Execution time	Memory
1151441		Issa	Abracadabra (CEOI22_abracadabra)	C++20	0 / 100	3094 ms	16160 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ent "\n"

const int maxn = 2e6 + 100;
const ll INF = (ll)1e18 + 100;
const int inf = 1e7 + 100;
const ll MOD = 1e9 + 7;
const int maxl = 16;
const ll P = 31;

int n, q;
int a[maxn];
int b[maxn];
int ans[maxn];
bool sorted;

void calc(){
    for(int k = 1, i = 1, j = n / 2 + 1; k <= n; k++){
        if(i <= n / 2 && (j > n || a[i] < a[j])) b[k] = a[i++];
        else b[k] = a[j++];
    } sorted = 1;
    for(int i = 1; i <= n; i++){
        sorted &= a[i] == b[i-1];
        a[i] = b[i];
    }
}

void test(){
    cin >> n >> q;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    vector<pair<int, pii>> v;
    for(int i = 1; i <= q; i++){
        int t, p;
        cin >> t >> p;
        v.push_back({t, {p, i}});
    } 
    v.push_back({0, {0, 0}});
    sort(v.begin(), v.end());
    for(int i = 1; i < v.size(); i++){
        for(int cnt = 0; cnt < v[i].first - v[i-1].first; cnt++){
            if(sorted) break;
            calc();
        } auto [p, id] = v[i].second;
        ans[id] = a[p];
    } for(int i = 1; i <= q; i++){
        cout << ans[i] << ent; 
    }
} 

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int t = 1;
    while(t--) test();
}

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