#include "perm.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
vector<int> construct_permutation(ll k) {
vector<int> ans;
int x = __lg(k);
for (int i = 0; i < x; ++i) ans.push_back(i);
for (int i = x - 1; i >= 0; --i) {
if ((k>>i)&1) {
ans.insert(ans.begin()+i, x);
x++;
}
}
return ans;
}
/*
vector<int> construct_permutation(ll k)
{
k--;
vector<int> ans;
int mx = 0;
while (k > 0) {
int i = 60;
while ((1LL << i) - 1 > k) {
i--;
}
for (int j = mx+i-1; j >= mx; --j) {
ans.push_back(j);
}
mx = mx+i;
k-= (1LL << i) - 1;
}
reverse(ans.begin(), ans.end());
cout << endl;
return ans;
}
*/
