Submission #659730

#TimeUsernameProblemLanguageResultExecution timeMemory
659730Sohsoh84Newspapers (CEOI21_newspapers)C++17
8 / 100
1 ms212 KiB
#include <bits/stdc++.h>

using namespace std;

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

#define all(x)			(x).begin(),(x).end()
#define X			first
#define Y			second
#define sep			' '
#define endl			'\n'
#define debug(x)		cerr << #x << ": " <<  x << endl;

const ll MAXN = 1e6 + 10;

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int n;
	cin >> n;

	cout << "YES" << endl;
	if (n == 1) return cout << 1 << endl << 1 << endl, 0;
	if (n == 2) return cout << 2 << endl << 1 << sep << 1 << endl, 0;

	cout << 2 * (n - 2) << endl;
	if (n & 1) {
		for (int i = n - 1; i > 1; i--) cout << i << sep;
		for (int i = n - 1; i > 1; i--) cout << i << sep;
		cout << endl;
	} else {
		for (int i = 2; i < n; i++) cout << i << sep;
		for (int i = n - 1; i > 1; i--) cout << i << sep;
		cout << endl;
	}
	return 0;
}
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