Submission #908581

#	Time	Username	Problem	Language	Result	Execution time	Memory
908581		vjudge1	Permutation (APIO22_perm)	C++17	100 / 100	2 ms	604 KiB

perm

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

using ll = long long;
using vi = vector<int>;

vi construct_permutation(ll k) {
    if(k == 1) return {};
    if(k == 2) return vi{0};
    for(int i: {2, 3, 5, 7, 11, 13, 17, 19, 23, 29}) {
        if(k % i == 0 && k > i) {
            vi l = construct_permutation(k / i);
            vi r = construct_permutation(i);
            for(auto& x: r) x += l.size();
            l.insert(l.end(), r.begin(), r.end());
            return l;
        }
    }
    vi a = construct_permutation(k / 2);
    a.push_back(a.size());
    if(k & 1) a.insert(a.begin(), a.size());
    return a;
}

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