oj.uz

Submission #603060

# Submission time Handle Problem Language Result Execution time Memory
603060 2022-07-23T14:38:50 Z tutis Permutation (APIO22_perm) C++17
100 / 100
 3 ms 340 KB 
#include "perm.h"
using namespace std;
#include <iostream>
#include <random>
#include <functional>
#include <cassert>
#include <map>
using ll = long long;
std::vector<int> construct_permutation(long long k, bool v)
{
	if (k == 1)
		return {};
	if (k == 3)
		return {1, 0};
	if (k == 4)
		return {2, 1, 0};
	if (k % 2 == 0)
	{
		vector<int>a = construct_permutation(k / 2, v);
		a.push_back((int)a.size());
		return a;
	}
	if (k % 4 == 3)
	{
		vector<int>a = construct_permutation(k - 3, true);
		for (int &i : a)
			if (i >= 2)
				i++;
		a.push_back(2);
		return a;
	}
	if (k % 2 == 1)
	{
		vector<int>a = construct_permutation(k - 1, v);
		a.insert(a.begin(), (int)a.size());
		return a;
	}
	assert(false);
	return {};
}

vector<int> construct_permutation(long long k)
{
	return construct_permutation(k, false);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 292 KB Output is correct

Subtask #2
90.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 296 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 2 ms 300 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 300 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 3 ms 296 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 3 ms 296 KB Output is correct