Submission #584200

#	Time	Username	Problem	Language	Result	Execution time	Memory
584200		jairRS	순열 (APIO22_perm)	C++17	91.33 / 100	2 ms	340 KiB

perm

#include "perm.h"
using namespace std;

std::vector<int> construct_permutation(long long k)
{
	long long cur = 1, power2 = 1;
	vector<int> res;
	int exp = 0;

	while (cur + power2 <= k)
	{
		cur += power2;
		res.push_back(res.size());
		power2 *= 2;
		exp++;
	}

	while (cur < k)
	{
		while (cur + power2 > k)
		{
			power2 /= 2;
			exp--;
		}
		cur += power2;
		res.insert(res.begin() + exp, res.size());
	}

	return res;
}

• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90