Submission #1086804

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086804		Timosh	Permutation (APIO22_perm)	C++17	0 / 100	1 ms	348 KiB

perm

#include "bits/stdc++.h"
#include "perm.h"
using namespace std;

std::vector<int> construct_permutation(long long k)
{
	int mx = 10000;
	int mn = 0;
	vector<int> cur;
	long long x = k - 1;
	while (x > 0)
	{
		if (x % 2)
		{
			x--;
			cur.push_back(mx--);
		}
		else
			x /= 2, cur.push_back(mn++);
	}
	int subtr = 0;
	reverse(cur.begin(), cur.end());
	for (auto &i : cur)
	{
		if (i > 1000)
			i -= 10000 - (int)cur.size();
	}
	return cur;
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:21:6: warning: unused variable 'subtr' [-Wunused-variable]
   21 |  int subtr = 0;
      |      ^~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 90