Submission #746970

#	Time	Username	Problem	Language	Result	Execution time	Memory
746970		snpmrnhlol	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	428 KiB

perm

#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector <int> v;
map <ll,ll> f;
std::vector<int> construct_permutation(ll k)
{
    v.clear();
    ll i,j,cnt = 0;
    i = j = 0;
    while(k > 1){
        if(k%2 == 1){
            v.push_back(1000 - j++);
        }
        v.push_back(i++);
        k/=2;
    }
    f.clear();
    ll cnt2 = 0;
    //for(auto i:v)cout<<i<<' ';
    for(auto i:v)f[i] = 1;
    for(auto &i:f)i.second = cnt2++;//,cout<<i.first<<' ';
    for(auto &i:v)i = f[i];
    //for(auto i:v)cout<<i<<' ';
    return v;
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(ll)':
perm.cpp:10:12: warning: unused variable 'cnt' [-Wunused-variable]
   10 |     ll i,j,cnt = 0;
      |            ^~~

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