제출 #617926

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
617926		drdilyor	Newspapers (CEOI21_newspapers)	C++17	0 / 100	1 ms	212 KiB

newspapers

#include <bits/stdc++.h>
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
#define sz(a) ((int)(a).size())
using namespace std;
using ll = long long;
const int INF = 1e9;
const ll INFL = 1e18;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);
template<typename T, typename U> istream& operator>>(istream& is, pair<T, U>& p) { return is >> p.first >> p.second; }
const int N = 2e5, LOGN = 17, MOD = 1e9+7;

int solve() {
    int n;
    if (!(cin >> n)) {
        return 1;
    }
    cout << "YES\n";

    if (n == 1) {
        cout << "1 1\n";
    } else if( n == 2) {
        cout << "2 1 1\n";
    } else {

    vector<int> res;
    for (int i = 2; i <= n-1; i++) {
        res.push_back(i);
    }
    if (n % 2 == 0)
        res.push_back(1);
    for (int i = n-1; i >= 2; i--) {
        res.push_back(i);
    }
    cout << sz(res) << '\n';
    for (int i : res) cout << i << ' ';
    cout << '\n';

   }return 0;
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
    #ifdef ONPC
    t = 10000;
    #endif
    cin >> t;
    while (t-- && cin) {
        if (solve()) break;
        #ifdef ONPC
            cout << "____________________" << endl;
        #endif
    }
    return 0;
}

/*
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 ▒▒▒▒▒▒▒▒ ▒▒▒▒▒      ▒▒▒▒▒▒▒▒ ▒▒▒▒▒ ▒▒▒▒▒   ▒▒▒▒▒███  ▒▒▒▒▒▒  ▒▒▒▒▒     
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*/

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