Submission #702141

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
702141	2023-02-23 05:51:43	ld_minh4354	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	340 KiB

perm

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#include "perm.h"
using namespace std;
vector<int> construct_permutation(long long k)
{
  long long a[5005],i,j,cur_val,pos,cur_k,n;
  
  cur_k=k;
  
  n=1;a[1]=0;cur_val=2;
  while (cur_val*2<=k)
  {
    n++;a[n]=n-1;
    cur_val*=2;
  }
  cur_k -= cur_val;
  
  while (cur_k > 0)
  {
    cur_val=1;pos=1;
    while (cur_val*2 <= cur_k)
    {
      pos++;cur_val*=2;
    }
    
    for (i=n+1;i>pos;i--) a[i]=a[i-1];
    n++;a[pos]=n-1;
    
    cur_k -= cur_val;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:6:22: warning: unused variable 'j' [-Wunused-variable]
    6 |  long long a[5005],i,j,cur_val,pos,cur_k,n;
      |                      ^

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