#include <bits/stdc++.h>
using namespace std;
#define int long long
int32_t main()
{
cin.tie(0)->sync_with_stdio(0);
int n;
cin >> n;
vector<int> a(n + 2), l(n + 2), r(n + 2);
priority_queue<pair<int, int>> q;
for(int i = 1; i <= n; i++) {
cin >> a[i];
l[i] = i - 1, r[i] = i + 1;
q.emplace(a[i], i);
}
l[n + 1] = n;
r[0] = 1;
const int oo = 1e18;
a[0] = a[n + 1] = -oo;
int ans = 0;
vector<bool> used(n + 2);
for(int t = 1; t <= (n + 1) / 2; t++) {
while(used[q.top().second]) {
q.pop();
}
auto [add, i] = q.top();
q.pop();
ans += add;
a[i] = a[l[i]] + a[r[i]] - a[i];
q.emplace(a[i], i);
used[l[i]] = used[r[i]] = 1;
l[i] = l[l[i]];
r[l[i]] = i;
r[i] = r[r[i]];
l[r[i]] = i;
cout << ans << '\n';
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
468 KB |
Output is correct |
| 2 |
Correct |
1 ms |
464 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
2 ms |
464 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
460 KB |
Output is correct |
| 7 |
Correct |
1 ms |
468 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
1 ms |
424 KB |
Output is correct |
| 15 |
Correct |
1 ms |
460 KB |
Output is correct |
| 16 |
Correct |
1 ms |
460 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
1 ms |
464 KB |
Output is correct |
| 19 |
Correct |
1 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
468 KB |
Output is correct |
| 2 |
Correct |
1 ms |
464 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
2 ms |
464 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
460 KB |
Output is correct |
| 7 |
Correct |
1 ms |
468 KB |
Output is correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
468 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
1 ms |
424 KB |
Output is correct |
| 15 |
Correct |
1 ms |
460 KB |
Output is correct |
| 16 |
Correct |
1 ms |
460 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Correct |
1 ms |
464 KB |
Output is correct |
| 19 |
Correct |
1 ms |
468 KB |
Output is correct |
| 20 |
Correct |
1 ms |
468 KB |
Output is correct |
| 21 |
Correct |
106 ms |
11668 KB |
Output is correct |
| 22 |
Correct |
90 ms |
11720 KB |
Output is correct |
| 23 |
Correct |
97 ms |
11676 KB |
Output is correct |
| 24 |
Correct |
91 ms |
11492 KB |
Output is correct |
| 25 |
Correct |
73 ms |
11512 KB |
Output is correct |
| 26 |
Correct |
66 ms |
11512 KB |
Output is correct |
| 27 |
Correct |
88 ms |
11788 KB |
Output is correct |
| 28 |
Correct |
98 ms |
11624 KB |
Output is correct |
| 29 |
Correct |
85 ms |
11784 KB |
Output is correct |
| 30 |
Correct |
97 ms |
11708 KB |
Output is correct |
| 31 |
Correct |
76 ms |
11732 KB |
Output is correct |
| 32 |
Correct |
84 ms |
11684 KB |
Output is correct |
| 33 |
Correct |
97 ms |
11512 KB |
Output is correct |
| 34 |
Correct |
87 ms |
11464 KB |
Output is correct |
| 35 |
Correct |
102 ms |
11516 KB |
Output is correct |
| 36 |
Correct |
98 ms |
11588 KB |
Output is correct |
| 37 |
Correct |
96 ms |
11592 KB |
Output is correct |
| 38 |
Correct |
98 ms |
11604 KB |
Output is correct |
| 39 |
Correct |
73 ms |
11564 KB |
Output is correct |
| 40 |
Correct |
73 ms |
11476 KB |
Output is correct |
| 41 |
Correct |
82 ms |
11572 KB |
Output is correct |
| 42 |
Correct |
82 ms |
11676 KB |
Output is correct |
| 43 |
Correct |
83 ms |
11664 KB |
Output is correct |
| 44 |
Correct |
82 ms |
11672 KB |
Output is correct |
| 45 |
Correct |
90 ms |
11680 KB |
Output is correct |
| 46 |
Correct |
87 ms |
11764 KB |
Output is correct |
| 47 |
Correct |
75 ms |
11700 KB |
Output is correct |
| 48 |
Correct |
82 ms |
11448 KB |
Output is correct |
| 49 |
Correct |
91 ms |
11468 KB |
Output is correct |
| 50 |
Correct |
89 ms |
11464 KB |
Output is correct |
