Submission #1041349

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1041349	2024-08-01 22:17:37	MarwenElarbi	Permutation (APIO22_perm)	C++17	91.33 / 100	1 ms	440 KiB

perm

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#include <bits/stdc++.h>
#include "perm.h"
using namespace std;
#define pb push_back
std::vector<int> construct_permutation(long long k)
{
  k--;
  vector<int> tab;
  int cnt=0;
  int mx=0;
  for (int i = 62; i > 0; --i)
  {
      while(mx==0&&k>=(1LL<<i)-1){
        mx=i;
        k-=(1LL<<i)-1;
        tab.pb(i);
      } 
      while(mx>0&&k>=(1LL<<(i-1))){
        k-=(1LL<<(i-1));
        tab.pb(i);
      } 
  }
  sort(tab.rbegin(),tab.rend());
  vector<int> ans;
  int j=1;
  for (int i = 0; i < mx;++i)
  {
    ans.pb(tab.size()+i-1);
    while(j<tab.size()&&mx-i==tab[j]){
      ans.pb(tab.size()-j-1);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:29:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |   while(j<tab.size()&&mx-i==tab[j]){
      |         ~^~~~~~~~~~~
perm.cpp:9:6: warning: unused variable 'cnt' [-Wunused-variable]
    9 |  int cnt=0;
      |      ^~~

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