Submission #572701

#	Time	Username	Problem	Language	Result	Execution time	Memory
572701		baluteshih	Permutation (APIO22_perm)	C++17	71.22 / 100	11 ms	1364 KiB

perm

#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define X first
#define Y second
#define SZ(a) ((int)a.size())
#define ALL(v) v.begin(), v.end()
#define pb push_back

vector<int> construct_permutation(ll k) {
    vector<int> idx, rt;
    --k;
    for (ll x = 59; x > 0; --x) {
        while (k >= (1LL << x) - 1) {
            k -= (1LL << x) - 1;
            idx.pb(x);
        }
    }
    int nw = -1;
    for (int x : idx) {
        for (int i = nw + x; i > nw; --i)
            rt.pb(i);
        nw += x;
    }
    reverse(ALL(rt));
    return rt;
}

• Subtask 1: 10 / 10
• Subtask 2: 61.215384618 / 90