Submission #777308

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
777308	2023-07-09 03:43:34	yeyso	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	340 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> construct_permutation(long long k)
{
    vector<long long> logs;
    int L = 0;
    for(long long i = 0; i <= log(k) * 2; i ++){
        long long x = pow(2, i);
        if(x <= k) {
            logs.push_back(x); 
            L = i;
        } else {
            break;
        }
    }
    //cout << logs[logs.size()-1];
    vector<int> res(L, 0);
    k -= logs[logs.size()-1];
    //int x = log(k+1) / log(2) + 1;
    iota(res.begin(), res.end(), 0);
    while(k > 0){
        for(long long i = logs.size() - 1; i >= 0; i --){
            if(logs[i] <= k){
                res.insert(res.begin() + i, L);
                k -= logs[i];
                break;
            }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90