Submission #969595

#	Time	Username	Problem	Language	Result	Execution time	Memory
969595		akacool445k	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	496 KiB

perm

#include <bits/stdc++.h>
#include "perm.h"
using namespace std;
 
// #define int long long
#define ll long long
#define ff first
#define ss second
#define fast ios_base::sync_with_stdio(NULL); cin.tie(NULL)

const double inf = 1e18 + 9;
const int mxn = 2e5 + 2;
const int mod = 1e9 + 7;
 
vector<int> construct_permutation(long long k) {
	vector<int> v;
	int cnt1 = 0;
	int cnt2 = 0;
	long long tmp = k;
	while(tmp > 1) {
		if(tmp % 2 == 0) {
			tmp = tmp / 2;
			cnt1++;
		} else {
			tmp--;
			cnt1++;
		}
	}
	cnt1--;
	while(k > 1) {
		if(k % 2 == 0) {
			k = k / 2;
			v.push_back(cnt1);
			cnt1--;
		} else {
			k--;
			v.push_back(cnt2);
			cnt2++;
		}
	}
	reverse(v.begin(), v.end());
	return v;
}

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