Submission #1118736

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1118736	2024-11-26 04:49:24	Username_taken12	Permutation (APIO22_perm)	C++17	Compilation error	0 ms	0 KiB

perm

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#include <bits/stdc++.h>
using namespace std;
vector<int> construct_permuation(long long k) {
  //int cnt = std::popcount((unsigned long long) k); 
  int cnt=0;
  int size =0;
  long long t=k;
  while(t>0){
    size++;
    t/=2;
    if(t%2==1)
      cnt++;
  }
  int len = size+cnt-1;
  int h=len;
  int a =1;
  vector<int> out;
  while(k>1){
    if(k%2==1)
      out.push_back(h--);
    out.push_back(a++);
    k/=2;
  }
  return out;
}
int main() {
  long long k; cin>>k;
 
 
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Compilation message (stderr)

perm.cpp: In function 'int main()':
perm.cpp:32:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |  for(int i=0; i<ans.size(); i++)
      |               ~^~~~~~~~~~~
/usr/bin/ld: /tmp/ccrjR4pj.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccOpRQVf.o:perm.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccrjR4pj.o: in function `main':
grader.cpp:(.text.startup+0x240): undefined reference to `construct_permutation(long long)'
collect2: error: ld returned 1 exit status