Submission #1019922

#	Time	Username	Problem	Language	Result	Execution time	Memory
1019922		Abito	Abracadabra (CEOI22_abracadabra)	C++17	10 / 100	639 ms	524288 KiB

Main

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
int n,q;
vector<vector<int>> v;
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n>>q;
    v.pb({});
    v[0].resize(n);
    for (int i=0;i<n;i++) cin>>v[0][i];
    for (int k=1;k<=2*n;k++){
        vector<int> b;
        int i=0,j=n/2;
        while (i<n/2 && j<n){
            if (v.back()[i]<v.back()[j]) b.pb(v.back()[i++]);
            else b.pb(v.back()[j++]);
        }
        while (i<n/2) b.pb(v.back()[i++]);
        while (j<n) b.pb(v.back()[j++]);
        v.pb(b);
        bool ok=true;
        for (int i=0;i<n/2;i++) ok&=(b[i]==i+1);
        if (ok) break;
    }
    while (q--){
        int t,i;
        cin>>t>>i;
        t=min(t,(int)v.size()-1);
        cout<<v[t][i-1]<<endl;
    }
    return 0;
}

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