Submission #985555

#	Time	Username	Problem	Language	Result	Execution time	Memory
985555		ParsaGolestani	Permutation (APIO22_perm)	C++17	91.33 / 100	3 ms	500 KiB

perm

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

typedef long long ll;

const int N = 2'000'0000;

vector<int> makeOk(deque<int> dq) {
    vector<int> vec1, vec2;
    for (int i = 0; i < dq.size(); i++)
        vec1.push_back(dq[i]);
    sort(vec1.begin(), vec1.end());
    for (int i = 0; i < dq.size(); i++)
        vec2.push_back(lower_bound(vec1.begin(), vec1.end(), dq[i]) - vec1.begin());
    return vec2;
}

vector<int> construct_permutation(ll k) {
    deque<int> dq;
    int bit = 63 - __builtin_clzll(k);
    if ((k & (1ll << (bit - 1)))) {
        dq.push_back(1);
        dq.push_back(0);
    }
    else
        dq.push_back(0);
    int pnt = 0;
    for (int j = bit - 2; j >= 0; j--) {
        dq.push_front(--pnt);
        if ((k & (1ll << j)))
            dq.push_back(--pnt);
    }
    return makeOk(dq);
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> makeOk(std::deque<int>)':
perm.cpp:10:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for (int i = 0; i < dq.size(); i++)
      |                     ~~^~~~~~~~~~~
perm.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (int i = 0; i < dq.size(); i++)
      |                     ~~^~~~~~~~~~~

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