Submission #573687

#	Time	Username	Problem	Language	Result	Execution time	Memory
573687		Jomnoi	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	340 KiB

perm

#include <bits/stdc++.h>
#include "perm.h"
using namespace std;

vector <int> construct_permutation(long long k) {
	deque <int> p;

    vector <int> binary;
    while(k > 0) {
        binary.push_back(k % 2);
        k /= 2;
    }

    reverse(binary.begin(), binary.end());

    int n = 0;
    for(int i = 1; i < binary.size(); i++) {
        p.push_back(n++);
        if(binary[i] == 1) {
            p.push_front(n++);
        }
    }
    
	return vector <int> (p.begin(), p.end());
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i = 1; i < binary.size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~

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