Submission #596416

#	Time	Username	Problem	Language	Result	Execution time	Memory
596416		slime	Permutation (APIO22_perm)	C++17	91.33 / 100	4 ms	392 KiB

perm

#include "perm.h"
#include "bits/stdc++.h"
using namespace std;
std::vector<int> construct_permutation(long long k)
{
  vector<int> cur = {};
  vector<int> bit;
  bool begin = 0;
  for(int i = 59; i >= 0; i--) {
    if(k & (1ll << i)) {
      bit.push_back(1);
      begin = 1;
    }
    else if(begin) bit.push_back(0);
  }
  for(int i = 1; i < bit.size(); i++) {
    int n = cur.size();
    cur.push_back(n);
    if(bit[i]) {
      n = cur.size();
      vector<int> new_;
      new_.push_back(n);
      for(int x: cur )new_.push_back(x);
      cur = new_;
    }
  }
  return cur;

}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |   for(int i = 1; i < bit.size(); i++) {
      |                  ~~^~~~~~~~~~~~

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