Submission #621469

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
621469	2022-08-03 20:48:44	gromperen	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	340 KiB

perm

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#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--;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90