Submission #1225050

#	Time	Username	Problem	Language	Result	Execution time	Memory
1225050		SpyrosAliv	Permutation (APIO22_perm)	C++20	64.62 / 100	13 ms	1116 KiB

perm

#include <bits/stdc++.h>
using namespace std;
#define ll long long

vector<int> construct_permutation(ll k) {
    k--;
    vector<int> perm;
    vector<int> bits;
    for (int i = 0; i < 61; i++) {
        if (!((k >> i) & 1)) continue;
        bits.push_back(i);
    }
    int curr = 0;
    for (auto x: bits) {
        int prev = curr;
        curr += x;
        vector<int> nxt;
        for (int j = prev+1; j <= curr; j++) {
            nxt.push_back(j);
        }
        nxt.push_back(prev);
        for (auto x: perm) nxt.push_back(x);
        perm = nxt;
        curr++;
    }
    return perm;
}

• Subtask 1: 10 / 10
• Subtask 2: 54.6154 / 90