Submission #963147

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
963147	2024-04-14 15:12:05	kilkuwu	Permutation (APIO22_perm)	C++17	100 / 100	2 ms	504 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
std::vector<int> construct_permutation(long long k) {
  if (k < 4) {
    if (k == 1) return {};
    if (k == 2) return {0};
    return {1, 0};
  }
  auto v = construct_permutation(k / 4);
  int r = k % 4;
  if (r == 0) {
    v.push_back(v.size());
    v.push_back(v.size());
    return v;
  }
  if (r == 1) {
    v.push_back(v.size());
    v.push_back(v.size());
    v.insert(v.begin(), v.size());
    return v;
  }
  if (r == 2) {
    // adding two into our thing
    v.push_back(v.size());
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 90 / 90