Submission #601325

#	Time	Username	Problem	Language	Result	Execution time	Memory
601325		IvanJ	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	340 KiB

perm

#include<bits/stdc++.h>
#include "perm.h"

#define pb push_back
#define all(a) (a).begin(), (a).end()

using namespace std;

typedef long long ll;


vector<int> construct_permutation(ll k) {
	deque<int> q;
	vector<int> v;
	for(;k > 1;k >>= 1) {
		if(k & 1) v.pb(0);
		v.pb(1);
	}
	reverse(all(v));
	int num = 0;
	for(int i : v)
		if(i) q.pb(num++);
		else q.push_front(num++);
	vector<int> p;
	while(q.size()) p.pb(q.front()), q.pop_front();
	return p;
}

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