#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
ios_base::sync_with_stdio(0); cin.tie(0);
int n;
cin>>n;
long long a[n+2];
a[0]=a[n+1]=-1e18;
for (int i=1; i<=n; i++) cin>>a[i];
long long l[n+1],r[n+1];
for (int i=1; i<=n; i++){
l[i]=i-1;
r[i]=i+1;
}
l[0]=0; r[n+1]=n+1;
bool used[n+2];
for (int i=0; i<=n+1; i++) used[i]=0;
set <pair <long long,int>,greater <pair <long long,int> > > s;
for (int i=1; i<=n; i++) s.insert(make_pair(a[i],i));
long long ans=0;
for (int iters=1; iters<=(n+1)/2; iters++){
die:;
pair <long long,int> tp=*s.begin(); s.erase(s.begin());
if (used[tp.second]) goto die;
ans+=tp.first;
cout<<ans<<'\n';
int ll=l[tp.second],rr=r[tp.second];
a[tp.second]=a[ll]+a[rr]-a[tp.second];
l[tp.second]=l[ll];
r[tp.second]=r[rr];
used[ll]=1;
used[rr]=1;
r[l[tp.second]]=tp.second;
l[r[tp.second]]=tp.second;
if (ll>=1&&rr<=n) s.insert(make_pair(a[tp.second],tp.second));
}
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
468 KB |
Output is correct |
| 2 |
Correct |
1 ms |
468 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
1 ms |
468 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 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 |
456 KB |
Output is correct |
| 15 |
Correct |
2 ms |
484 KB |
Output is correct |
| 16 |
Correct |
1 ms |
468 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 19 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
468 KB |
Output is correct |
| 2 |
Correct |
1 ms |
468 KB |
Output is correct |
| 3 |
Correct |
1 ms |
468 KB |
Output is correct |
| 4 |
Correct |
1 ms |
468 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 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 |
456 KB |
Output is correct |
| 15 |
Correct |
2 ms |
484 KB |
Output is correct |
| 16 |
Correct |
1 ms |
468 KB |
Output is correct |
| 17 |
Correct |
1 ms |
468 KB |
Output is correct |
| 18 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 19 |
Halted |
0 ms |
0 KB |
- |
