#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main() {
ios_base::sync_with_stdio(false); cin.tie(nullptr);
int n; cin >> n;
vector<int> v(n*2+1);
vector<int> mx(n*2+1);
int tot=0;
for (int i = 0; i < n; i++) {
cin >> v[i];
tot+=v[i];
}
for (int i = 0; i <= n; i++) v[i+n]=v[i];
int sum=0;
for (int i = 0; i <= (n-1)/2; i++) sum+=v[i];
mx[0]=sum;
for (int i = 1; i < n; i++)
{
sum-=v[i];
sum+=v[((n-1)/2)+i];
mx[i]=sum;
}
for (int i = 0; i <= n; i++) mx[i+n]=mx[i];
deque<int> queue;
for (int i = 1; i <= (n+1/2); i++)
{
while(!queue.empty()&&mx[queue.back()]>mx[i]) queue.pop_back();
queue.push_back(i);
}
int outp=mx[queue.front()];
for (int i = n; i < n*2; i++)
{
if(!queue.empty()&&queue.front()==(i-n)+1) queue.pop_front();
while(!queue.empty()&&mx[queue.back()]>mx[i]) queue.pop_back();
queue.push_back(i);
outp=max(mx[queue.front()], outp);
}
cout << outp << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |