Submission #981639

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
981639	2024-05-13 12:04:28	crafticat	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	428 KiB

perm

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int,int>;
std::vector<int> construct_permutation(long long k) {
    k--;
    int ma = 1e9;
    int mi = 0;
    vector<int> data;
    while (k > 0) {
        if (k % 2 == 1) {
            data.push_back(ma--);
            k = (k - 1) / 2;
        } else {
            data.push_back(mi++);
            k--;
        }
    }
    std::reverse(data.begin(), data.end());
    vector<pii> d2(data.size());
    for (int i = 0; i < data.size(); ++i) {
        d2[i] = {data[i],i};
    }
    std::sort(d2.begin(), d2.end());
    vector<int> ans(data.size());
    int iter = 0;
 
 
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i = 0; i < data.size(); ++i) {
      |                     ~~^~~~~~~~~~~~~

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