Submission #618056

#	Time	Username	Problem	Language	Result	Execution time	Memory
618056		Lobo	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	344 KiB

perm

#include "perm.h"
#include<bits/stdc++.h>
using namespace std;
#define int long long

vector<int32_t> construct_permutation(int k)
{
	int dv = 1;
    deque<int> ans;
	if(k%3 == 0) {
		k/=3;
		dv = 3;
	}
	else if(k%5 == 0) {
		k/=5;
		dv = 5;
	}
    int lg = 0;
    for(int i = 0; i <= 60; i++) {
    	if(k >= (1LL<<i)) lg = i;
    }
    for(int i = lg-1; i >= 0; i--) {
        ans.push_back((int) ans.size());
        if(k&(1LL<<i)) ans.push_front((int) ans.size());
    }
    //adiociona algo que multiplica por 3 agora
    if(dv == 3) {
    	ans.push_back((int) ans.size()+1);
    	ans.push_back((int) ans.size()-1);
    }
    if(dv == 5) {
    	int x = ans.size();
    	ans.push_back(x+2);
    	ans.push_back(x);
    	ans.push_back(x+1);
    }
    vector<int32_t> vc;
    for(auto x : ans) {
    	vc.push_back(x);
    }
    return vc;

}

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