#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
int n, b[100100];
set<int> q;
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
cin >> n;
for (int i = 1; i <= 2*n-1; i++)
q.insert(i);
vector <int> ans;
for (int i = 1; i <= n; i++){
cin >> b[i];
if (i == 1){
q.erase(b[i]);
ans.push_back(b[i]);
continue;
}
if (b[i] == b[i-1]){
ans.push_back(*q.begin());
q.erase(q.begin());
ans.push_back(*prev(q.end()));
q.erase(prev(q.end()));
}
else if (b[i] < b[i-1]){
if (q.find(b[i]) != q.end()){
ans.push_back(b[i]);
q.erase(b[i]);
ans.push_back(*q.begin());
q.erase(q.begin());
} else {
ans.push_back(*q.begin());
q.erase(q.begin());
ans.push_back(*q.begin());
q.erase(q.begin());
}
}
else {
if (q.find(b[i]) != q.end()){
ans.push_back(b[i]);
q.erase(b[i]);
ans.push_back(*prev(q.end()));
q.erase(prev(q.end()));
} else {
ans.push_back(*prev(q.end()));
q.erase(prev(q.end()));
ans.push_back(*prev(q.end()));
q.erase(prev(q.end()));
}
}
}
for (int i : ans)
cout << i << ' ';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
380 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
3 ms |
376 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
604 KB |
Output is correct |
2 |
Correct |
5 ms |
816 KB |
Output is correct |
3 |
Correct |
8 ms |
1144 KB |
Output is correct |
4 |
Correct |
15 ms |
1956 KB |
Output is correct |
5 |
Correct |
33 ms |
3448 KB |
Output is correct |
6 |
Correct |
66 ms |
6592 KB |
Output is correct |
7 |
Correct |
112 ms |
9848 KB |
Output is correct |