Submission #982381

#	Time	Username	Problem	Language	Result	Execution time	Memory
982381		boyliguanhan	Permutation (APIO22_perm)	C++17	91.33 / 100	1 ms	376 KiB

perm

#include "perm.h"

std::vector<signed> construct_permutation(long long k)
{
    long long j = 63-__builtin_clzll(k), x = 0;
    std::vector<int> v, app;
    for(long long i = 0; i < j; i++) {
        if(k&(1LL<<i)) app.push_back(x++);
        v.push_back(x++);
    }
    v.insert(v.end(), app.rbegin(), app.rend());
    return v;
}

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