Submission #1264478

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264478		XXBabaProBerkay	Permutation (APIO22_perm)	C++17	91.33 / 100	1 ms	328 KiB

perm

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

#define F first
#define S second

using ll = long long;

const int INF = 1e9 + 7;
const int MOD = 998244353;

vector<int> construct_permutation(ll k)
{		
	vector<int> ans;
	int a = 0, b = -1;

	bool o = 0;
	for (int i = 63; i >= 0; i--)
	{
		if ((k & (1ll << i)) && !o)
		{
			o = 1;
			continue;
		}

		if (!o)
			continue;

		ans.push_back(a);
		a++;

		if (k & (1ll << i))
		{
			ans.push_back(b);
			b--;
		}
	}

	for (int &i : ans)
		i += -b - 1;

	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 81.3333 / 90