Submission #957681

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
957681	2024-04-04 07:54:56	pragmatist	Permutation (APIO22_perm)	C++17	10 / 100	17 ms	1884 KiB

perm

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#include "perm.h"
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(time(NULL));
std::vector<int> construct_permutation(long long k)
{
  vector<int> ans;
  k--;
  int n = 0;
  vector<pair<int, int> > v;
  while(k>0) {
    int j = -1;
    int mx = 0;
    for(int i = 60; i >= 1; --i) {
      long long cur = (1ll<<i)-1;
      if(cur <= k) {
        if(cur == k) {
          j = i;
          break;
        }
        int cnt = __builtin_popcountll(k-cur);
        if(cnt>mx) {
          mx = cnt;
          j = i;
        }
      }
    }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 0 / 90