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- #include <algorithm>
- #include <vector>
- #include <iostream>
- #include <set>
- using namespace std;
- int main() {
- int n, k;
- vector<int> a;
- set<pair<int, int>> s;
- cin >> n;
- vector<int> m(n, -1), x(n, -1);
- for (int i = 0; i < n; i++) {
- cin >> k;
- a.push_back(k);
- auto j = upper_bound(s.begin(), s.end(), make_pair(k, 0));
- if (j != s.end()) {
- m[i] = (*j).second;
- }
- s.insert(make_pair(k, i));
- }
- s.clear();
- for (int i = 0; i < n; i++) {
- auto j = upper_bound(s.begin(), s.end(), make_pair(a[i] * (-1), 0));
- if (j != s.end()) {
- x[i] = (*j).second;
- }
- s.insert(make_pair(a[i] * (-1), i));
- }
- for (int i = 1; i < n; i++) {
- cout << a[max(m[i], x[i])] << ' ';
- }
- }
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