Submission #912388

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
912388	2024-01-19 11:16:50	huyngo	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	600 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>  
using namespace std;
using ll = long long;
using i64 = long long;
#define ln "\n"
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i=a; i<=b; ++i)
const int mxN = 1e6 + 5;
int n;
vector<int> construct_permutation(long long k) {
  vector<int> ans;
  int l = 0, r = 0;
  auto work = [&](auto self, ll x) -> void {
    if (x == 1) return;
    if (x & 1) {
      self(self, x - 1);
      ans.push_back(--l);
    }
    else {
      self(self, x >> 1);
      ans.push_back(++r);
    }
    };
  work(work, k);
  vector<int> s = ans;
  sort(all(s));
  s.erase(unique(all(s)), s.end());
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90