Submission #1165482

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1165482	2025-03-11 22:10:40	baldwin_huang	Permutation (APIO22_perm)	C++20	91.33 / 100	1 ms	328 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> construct_permutation(long long k) {
  int greatest_power_of_two;
  for (int i = 63; i >= 0; i--) {
    if (k & (1LL << i)) {
      greatest_power_of_two = i;
      // cout << (1 << 63) << '\n';
      break;
    }
  }
  // cout << "Greatest: " << greatest_power_of_two << '\n';
  vector<int> pre_ans;
  long long diff = k - (1LL << greatest_power_of_two);
  int counter = greatest_power_of_two;
  for (int i = greatest_power_of_two - 1; i >= 0; i--) {
    pre_ans.push_back(i);
    if (diff & (1LL << i)) {
      pre_ans.push_back(counter);
      counter++;
    }
  }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 81.3333 / 90