Submission #745529

#	Time	Username	Problem	Language	Result	Execution time	Memory
745529		mohav48173	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	468 KiB

perm

#include<bits/stdc++.h>
#include "perm.h"
using namespace std;
vector<int> construct_permutation(long long k) {
    deque<int>ans;
    vector<bool>bits;
    while(k>0) {
        if(k%2)bits.push_back(1);
        else bits.push_back(0);
        k/=2;
    }
    reverse(bits.begin(),bits.end());
    int cur=0;
    for(int i=0;i<bits.size();i++) {
        if(i==0)continue;
        ans.push_back(cur++);
        if(bits[i])ans.push_front(cur++);
    }
    vector<int>anss;
    for(int i:ans)anss.push_back(i);
    return anss;

}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:14:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i=0;i<bits.size();i++) {
      |                 ~^~~~~~~~~~~~

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