Submission #1226705

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226705		cpdreamer	Permutation (APIO22_perm)	C++20	64.62 / 100	8 ms	1608 KiB

perm

#include "perm.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
const long long INF = 1e17;
typedef long long ll;
const ll MOD = 998244353;
#define F first
#define pb push_back
#define S second
#define P pair
#define V vector
#define all(v) v.begin(), v.end()
std::vector<int> construct_permutation(long long k)
{
    k--;
    V<int>vp;
    int c=0;
    for (int i=60;i>=0;i--) {
        if (((1LL<<i)&k)!=0) {
            vp.pb(i);
            c++;
        }
    }
    vp.pb(c);
    int  s=0;
    for (auto u:vp) {
        s+=u;
    }
    s--;
    V<int>p;
    for (int i=0;i<(int)vp.size();i++) {
        int u=vp[i];
        s=s-u;
        if (i==(int)vp.size()-1) {
            for (int j=s+u;j>s;j--) {
                p.pb(j);
            }
        }
        else {
            for (int j=s+1;j<=s+u;j++) {
                p.pb(j);
            }
        }
    }
    return p;
}

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