Submission #982950

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
982950	2024-05-15 06:02:00	Muhammad_Aneeq	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	516 KiB

perm

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#include "perm.h"
#include <vector>
#include <algorithm>
using namespace std;
vector<int> construct_permutation(long long k)
{
  vector<int>bits;
  for (int i=59;i>=0;i--)
  {
    if ((1ll<<i)&k)
      bits.push_back(i);
  }
  reverse(begin(bits),end(bits));
  int sz=bits.back()+bits.size()-1;
  int st=0,en=sz-1;
  vector<int>ans(sz,0);
  int j=0;
  for (int i=0;i<sz;i++)
  {
    if (j<bits.size()&&bits[j]==st)
      ans[i]=en--,j++;
    else
      ans[i]=st++;
  }
  return ans;
}
 
 
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:20:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   if (j<bits.size()&&bits[j]==st)
      |       ~^~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90