Just do it

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

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n = 0;
    cin >> n;

    vector<int> initial(n);
    iota(initial.begin(), initial.end(), 0);

    vector<int> ans(n);
    iota(ans.begin(), ans.end(), n + 1);

    int l = 0, r = n;
    int cnt = 0;

    bool reversed = false;
    while (l + 1 < r) {
        int m = (l + r) / 2;

        if (!reversed) {
             if (ans[initial[l]] > n) {
            ans[initial[l]] = ++cnt;
            }
            if (ans[initial[m]] > n) {
                ans[initial[m]] = ++cnt;
            }
            if (ans[initial[r - 1]] > n) {
                ans[initial[r - 1]] = ++cnt;
            }

            swap(initial[l + 1], initial[m]);
            l = l + 2;
        } else {
            if (ans[initial[r - 1]] > n) {
                ans[initial[r - 1]] = ++cnt;
            }
            if (ans[initial[m]] > n) {
                ans[initial[m]] = ++cnt;
            }
             if (ans[initial[l]] > n) {
            ans[initial[l]] = ++cnt;
            }
            
            swap(initial[r - 1], initial[m]);
            r = r - 2;
        }
       
        reversed = !reversed;
    }

    auto ans1 = ans;
    sort(ans1.begin(), ans1.end());
    for (int i = 0; i < n; ++i)
        ans[i] = lower_bound(ans1.begin(), ans1.end(),  ans[i]) - ans1.begin() + 1;

    for (auto x : ans)
        cout << x << " ";
    cout << endl;

    
    return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: WRONG ANSWER

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: WRONG ANSWER