oj.uz

답안 #707545

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
707545 2023-03-09T08:52:49 Z 600Mihnea 순열 (APIO22_perm) C++17
100 / 100
 16 ms 372 KB 
#include "perm.h"
#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <cassert>
#include <bitset>
#include <sstream>
#include <chrono>
#include <cstring>
#include <numeric>

using namespace std;

typedef long long ll;

vector<int> normalize(vector<int> v)
{
	map<int, int> mp;
	for (auto& x : v)
	{
		mp[x] = 0;
	}
	int y = 0;
	for (auto& it : mp)
	{
		it.second = y++;
	}
	for (auto& x : v)
	{
		x = mp[x];
	}
	return v;
}

vector<int> construct_permutation(ll total)
{
	if (total == 1)
	{
		return normalize({});
	}
	if (total == 2)
	{
		return normalize({ 0 });
	}
	if (total == 3)
	{
		return normalize({ 1, 0 });
	}
	assert(total / 4 >= 1);
	assert(total >= 4);
	vector<int> sol = construct_permutation(total / 4);
	const int INF = 10000;
	if (total % 4 == 0)
	{
		sol.push_back(INF);
		sol.push_back(INF + 1);
	}
	if (total % 4 == 1)
	{
		sol.push_back(INF);
		sol.push_back(INF + 1);
		sol.push_back(-1);
	}
	if (total % 4 == 2)
	{
		sol.push_back(INF);
		sol.push_back(-1);
		sol.push_back(INF + 1);
	}
	if (total % 4 == 3)
	{
		bool is1 = 0, is10 = 0;
		for (auto& x : sol)
		{
			is1 |= (x == 1);
			if (x == 0)
			{
				is10 |= is1;
			}
		}
		if (is10)
		{
			for (auto& x : sol) x *= 2;
			sol.push_back(INF);
			sol.push_back(INF + 1);
			sol.push_back(3);
		}
		else 
		{
			sol.push_back(INF);
			sol.push_back(-1);
			sol.push_back(INF + 1);
			sol.push_back(-2);
		}
	}
	return normalize(sol);
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct

Subtask #2
90.0 / 90.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 212 KB Output is correct
5 Correct 7 ms 340 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 9 ms 340 KB Output is correct
8 Correct 12 ms 340 KB Output is correct
9 Correct 8 ms 340 KB Output is correct
10 Correct 12 ms 340 KB Output is correct
11 Correct 12 ms 324 KB Output is correct
12 Correct 10 ms 372 KB Output is correct
13 Correct 16 ms 340 KB Output is correct