Submission #578429

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
578429	2022-06-16 19:27:06	1zaid1	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	340 KiB

perm

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#include "perm.h"
#include "bits/stdc++.h"
using namespace std;
vector<int> construct_permutation(long long k) {
  vector<int> ans;
  int mx = 1000, mn = -1000;
  vector<int> steps;
  while (k != 1) {
    if (k%2) ans.push_back(mn++);
    ans.push_back(mx--);
    k /= 2;
  } reverse(ans.begin(), ans.end());
  map<int, int> fr;
  vector<int> tmp = ans;
  int ind = 0;
  sort(tmp.begin(), tmp.end());
  for (int i:tmp) {
    fr[i] = ind++;
  }
  for (int&i:ans) i = fr[i];
  return ans;
}
/*
1 2 4 5 10 11 22 23
{}
{0 1 -1 2 -2 3 -3}
{3 4 2 5 1 6 0}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90