Submission #1163538

#	Time	Username	Problem	Language	Result	Execution time	Memory
1163538		asli_bg	Lampice (COCI21_lampice)	C++20	10 / 50	0 ms	328 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;

#define int long long

typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<int> vi;

#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)

#define all(x) x.begin(),x.end()
#define fi first
#define se second
#define pb push_back
#define sp <<" "<<

#define cont(x) for(auto el:x) cout<<el<<' ';cout<<endl;
#define contp(x) for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;

#define DEBUG(x) cout<<#x sp x<<endl;
#define carp(x,y) ((x%MOD)*(y%MOD))%MOD
#define topla(x,y) ((x%MOD)+(y%MOD))%MOD
#define mid (l+r)/2

const int MAXN=2e5+5;
const int INF=1e18;

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

    int n,k;
    cin>>n>>k;
    vi val(n+1);
    FORE(i,1,n+1) cin>>val[i];

    int cev=0;
    set<int> s;

    FORE(bas,1,n+1){
        FORE(son,bas,n+1){
            int len=son-bas+1;
            if(len%k!=0) continue;
            int ara=len/k;
            bool f=true;
            FOR(i,ara){
                int cur=-1;
                for(int j=bas+i;j<=son;j+=ara){
                    if(cur==-1) cur=val[j];
                    else{
                        if(val[j]!=cur) {f=false;break;}
                    }
                }
            }

            if(f){
                cev=ara;
                FORE(i,bas,son+1) s.insert(val[i]);
                break;
            }
        }
        if(cev!=0) break;
    }

    if(cev!=0) {cout<<cev<<endl;cont(s);}
    else cout<<-1<<endl;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 25