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Submission #1035336

# Submission time Handle Problem Language Result Execution time Memory
1035336 2024-07-26T09:33:59 Z amine_aroua Permutation (APIO22_perm) C++17
71.2154 / 100
 9 ms 1420 KB 
#include "perm.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
vector<int> bits;
void add(ll k)
{
	if(k == 0)
	{
		return;
	}
	for(ll i = 59 ; i >= 1 ; i--)
	{
		if(k - ((1ll<<i) - 1) >= 0)
		{
			bits.push_back(i);
			k-=((1ll<<i) - 1);
			add(k);
			break;
		}
	}
}
std::vector<int> construct_permutation(long long k)
{
	k--;
	int n = 0;
	bits.clear();
	for(ll i = 0 ; i < 60 ; i++)
	{
		if((1ll<<i) & k)
		{
            bits.push_back(i);
			n+=i + 1;
		}
	}
    n--;
    vector<int> perm;
    for(auto i : bits)
    {
        for(int j = n - i + 1 ; j <= n ; j++)
        {
            perm.push_back(j);
        }
        n-=i;
    }
    while(n >= 0)
    {
        perm.push_back(n);
        n--;
    }
	vector<int> best = perm;
	perm.clear();
	bits.clear();
	n = 0;
	add(k);
	for(auto bit : bits)
		n+=bit;
	n--;
	for(auto i : bits)
	{
		for(int j = n - i + 1 ; j <= n ; j++)
		{
			perm.push_back(j);
		}
		n-=i;
	}
	if((int)perm.size()< (int)best.size())
		return perm;
	else
		return best;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct

Subtask #2
61.215384618 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Partially correct 1 ms 348 KB Partially correct
4 Partially correct 1 ms 348 KB Partially correct
5 Partially correct 3 ms 860 KB Partially correct
6 Partially correct 3 ms 604 KB Partially correct
7 Partially correct 5 ms 860 KB Partially correct
8 Partially correct 7 ms 1100 KB Partially correct
9 Correct 1 ms 348 KB Output is correct
10 Partially correct 9 ms 1420 KB Partially correct
11 Partially correct 6 ms 1116 KB Partially correct
12 Partially correct 6 ms 1116 KB Partially correct
13 Partially correct 6 ms 1116 KB Partially correct