Submission #1014580

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014580		vjudge1	Abracadabra (CEOI22_abracadabra)	C++17	0 / 100	3060 ms	2780 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<n; i++)
#define rep2(i,l,r) for(int i=l; i<r; i++)
#define all(x) x.begin(),x.end()
#define len(x) (int)x.size();
#define fi first
#define se second
#define elif else if
using ll=long long;
using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vi=vector<int>;
using vvi=vector<vector<int>>;
using vl=vector<ll>;
using vvl=vector<vector<ll>>;
constexpr ll LINF=1001001001001001001LL;
constexpr ll MINF=1001001001001LL;
constexpr int INF=1001001001;

int N;
vi riffle(vi p){
    int lf=0;
    int ri=N/2;
    vi ret(N);
    rep(i,N){
        if(lf==N/2||(ri!=N&&p[lf]>p[ri])){
            ret[i]=p[ri];
            ri++;
        }
        else{
            ret[i]=p[lf];
            lf++;
        }
    }
    return ret;
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int Q;
    cin>>N>>Q;
    vi P(N);
    rep(i,N)cin>>P[i];
    rep(i,15000){
        if(P==riffle(P))return 0;
        P=riffle(P);
    }
    return 1;
}

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