Submission #975901

#	Time	Username	Problem	Language	Result	Execution time	Memory
975901		phoenix0423	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	600 KiB

perm

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#include "perm.h"

vector<int> construct_permutation(long long k){
    vector<int> ans;
    int c = 0;
    for(ll i = 0; i < __lg(k); i++){
        ans.pb(c++);
    }
    int pos = ans.size() - 1;
    for(ll i = __lg(k) - 1; i >= 0; i--){
        if(k & (1LL << i)){
            ans.insert(ans.begin() + pos, c++);
        }
        pos--;
    }
    return ans;
}

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