Submission #1065065

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1065065	2024-08-18 21:59:04	sammyuri	Permutation (APIO22_perm)	C++17	100 / 100	6 ms	348 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector<int> normalise(vector<int> xx, int fac = 2) {
  vector<int> values = xx;
  sort(values.begin(), values.end());
  vector<int> ans;
  for (auto a : xx) {
    auto it = lower_bound(values.begin(), values.end(), a);
    ans.push_back(fac * (it - values.begin()));
  }
  return ans;
}
const int BIG = 1000, SMALL = -1;
std::vector<int> construct_permutation(long long k) {
  // build initial permutation
  ll curpow = 2;
  vector<int> ans;
  vector<int> digits;
  while (k) {
    digits.push_back(k % 4);
    k /= 4;
  }
  if (digits.back() == 1)
    ans = {};
  else if (digits.back() == 2)
    ans = {0};
 
 
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:20:5: warning: unused variable 'curpow' [-Wunused-variable]
   20 |  ll curpow = 2;
      |     ^~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 90 / 90