#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
const int N = 2e5 + 5;
int n;
int L[N], R[N];
long long a[N];
bool tog[N];
void app(int u) {
tog[u] = 1;
L[R[u]] = L[u];
R[L[u]] = R[u];
}
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
cin >> n;
priority_queue<pair<long long, int>> pq;
for (int i = 1; i <= n; ++i) {
cin >> a[i];
L[i] = i - 1, R[i] = i + 1;
pq.push({a[i], i});
}
long long res = 0;
for (int i = 1; i <= (n + 1) / 2; ++i) {
while (pq.size() && tog[pq.top().second]) {
pq.pop();
}
assert(pq.size());
cout << (res += pq.top().first) << "\n";
int u = pq.top().second;
pq.pop();
int lt = L[u], rt = R[u];
if (0 < lt && rt <= n) {
pq.push({a[u] = a[lt] + a[rt] - a[u], u});
} else {
app(u);
}
app(lt);
app(rt);
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |