Submission #922347

#	Time	Username	Problem	Language	Result	Execution time	Memory
922347		Shayan86	Lampice (COCI21_lampice)	C++14	50 / 50	1 ms	504 KiB

Main

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

#pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// Ofast, O0, O1, O2, O3, unroll-loops, fast-math, trapv

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define Mp          make_pair
#define sep         ' '
#define endl        '\n'
#define F	        first
#define S	        second
#define pb          push_back
#define all(x)      (x).begin(),(x).end()
#define kill(res)	cout << res << '\n', exit(0);
#define set_dec(x)	cout << fixed << setprecision(x);
#define fast_io     ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io     freopen("input.txt", "r", stdin) ; freopen("output.txt", "w", stdout);

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll N = 3e5 + 50;
const ll Mod = 1e9 + 7;

ll n, m, arr[N];

int main(){
    fast_io;

    cin >> n >> m;

    for(int i = 1; i <= n; i++){
        cin >> arr[i];
    }

    for(int l = 1; l <= n; l++){
        for(int i = 1; l + i * m <= n+1; i++){
            bool ch = true;
            for(int j = i; j < i*m; j++) if(arr[l+j] != arr[l+j%i]) ch = false;
            if(ch){
                cout << i << endl;
                for(int x = l; x < l + i; x++) cout << arr[x] << sep;
                exit(0);
            }
        }
    }

    cout << -1;

}

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