Submission #821436

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
821436	2023-08-11 10:17:46	radaiosm7	Permutation (APIO22_perm)	C++17	71.22 / 100	10 ms	1364 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> construct_permutation(long long k) {
  --k;
  vector<int> groups;
  int sum = 0;
  vector<int> ans;
  long long po[61];
  po[0] = 1LL;
  for (int i=1; i <= 59; ++i) po[i] = po[i-1]*2LL;
  int cc;
  
  for (int i=59; i >= 1; --i) {
    cc = 0;
    while (k >= po[i]) {
      k -= po[i];
      ++cc;
      ++k;
    }
    if (cc == 1) {
      groups.push_back(i);
      sum += i;
    }
    else if (cc == 2) {
      groups.push_back(i+1);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 61.215384618 / 90