#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin >> n;
set<int> notUsed;
for (int i = 1; i <= n * 2 - 1; i++) notUsed.insert(i);
vector<int> ans, a(n);
for (int i = 0; i < n; i++) cin >> a[i];
ans.push_back(a[0]);
notUsed.erase(a[0]);
for (int i = 1; i < n; i++) {
if (a[i] == a[i - 1]) {
int mn = *notUsed.begin(), mx = *notUsed.rbegin();
ans.push_back(mn);
ans.push_back(mx);
notUsed.erase(mn);
notUsed.erase(mx);
continue;
}
if (a[i] > a[i - 1]) {
int mx = *notUsed.rbegin();
ans.push_back(mx);
notUsed.erase(mx);
if (notUsed.count(a[i])) {
ans.push_back(a[i]);
notUsed.erase(a[i]);
}
else {
mx = *notUsed.rbegin();
ans.push_back(mx);
notUsed.erase(mx);
}
continue;
}
int mn = *notUsed.begin();
ans.push_back(mn);
notUsed.erase(mn);
if (notUsed.count(a[i])) {
ans.push_back(a[i]);
notUsed.erase(a[i]);
}
else {
mn = *notUsed.begin();
ans.push_back(mn);
notUsed.erase(mn);
}
}
for (auto x : ans) cout << x << " ";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
344 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
4 ms |
860 KB |
Output is correct |
3 |
Correct |
5 ms |
1300 KB |
Output is correct |
4 |
Correct |
14 ms |
2128 KB |
Output is correct |
5 |
Correct |
26 ms |
3724 KB |
Output is correct |
6 |
Correct |
42 ms |
7472 KB |
Output is correct |
7 |
Correct |
73 ms |
11344 KB |
Output is correct |