#include<bits/stdc++.h>
const int N = 5e5 + 5;
using namespace std;
deque <long long> mq;
long long n, a[2*N], sum[2*N], maxx, siz;
int main(){
cin >> n;
siz = (n+1)/2;
for (int i = 1; i <= n; i++) cin >> a[i];
for (int i = 1; i <= n; i++) a[i+n] = a[i];
for (int i = 1; i <= siz; i++) sum[1] += a[i];
for (int i = 2; i <= n; i++) sum[i] = sum[i-1] + a[i-1+siz] - a[i-1];
for (int i = 1; i <= n; i++) sum[n+i] = sum[i];
for (int i = 1; i <= 2*n; i++){
while(mq.size() && sum[mq.front()] >= sum[i]) mq.pop_front();
mq.push_front(i);
if (i - mq.back() == siz) mq.pop_back();
if(i >= siz) maxx = max(sum[mq.back()], maxx);
}
cout << maxx;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
17640 KB |
Output is correct |
2 |
Correct |
0 ms |
17640 KB |
Output is correct |
3 |
Correct |
0 ms |
17640 KB |
Output is correct |
4 |
Correct |
0 ms |
17640 KB |
Output is correct |
5 |
Correct |
0 ms |
17640 KB |
Output is correct |
6 |
Correct |
0 ms |
17640 KB |
Output is correct |
7 |
Correct |
0 ms |
17640 KB |
Output is correct |
8 |
Correct |
0 ms |
17640 KB |
Output is correct |
9 |
Correct |
0 ms |
17640 KB |
Output is correct |
10 |
Correct |
0 ms |
17640 KB |
Output is correct |
11 |
Correct |
0 ms |
17640 KB |
Output is correct |
12 |
Correct |
0 ms |
17640 KB |
Output is correct |
13 |
Correct |
0 ms |
17640 KB |
Output is correct |
14 |
Correct |
0 ms |
17640 KB |
Output is correct |
15 |
Correct |
0 ms |
17640 KB |
Output is correct |
16 |
Correct |
0 ms |
17640 KB |
Output is correct |
17 |
Correct |
0 ms |
17640 KB |
Output is correct |
18 |
Correct |
0 ms |
17640 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
17640 KB |
Output is correct |
2 |
Correct |
0 ms |
17640 KB |
Output is correct |
3 |
Correct |
0 ms |
17640 KB |
Output is correct |
4 |
Correct |
0 ms |
17640 KB |
Output is correct |
5 |
Correct |
0 ms |
17640 KB |
Output is correct |
6 |
Correct |
0 ms |
17640 KB |
Output is correct |
7 |
Correct |
0 ms |
17640 KB |
Output is correct |
8 |
Correct |
0 ms |
17640 KB |
Output is correct |
9 |
Correct |
0 ms |
17640 KB |
Output is correct |
10 |
Correct |
0 ms |
17640 KB |
Output is correct |
11 |
Correct |
0 ms |
17640 KB |
Output is correct |
12 |
Correct |
0 ms |
17640 KB |
Output is correct |
13 |
Correct |
0 ms |
17640 KB |
Output is correct |
14 |
Correct |
0 ms |
17640 KB |
Output is correct |
15 |
Correct |
0 ms |
17640 KB |
Output is correct |
16 |
Correct |
0 ms |
17640 KB |
Output is correct |
17 |
Correct |
0 ms |
17640 KB |
Output is correct |
18 |
Correct |
0 ms |
17640 KB |
Output is correct |
19 |
Correct |
0 ms |
17640 KB |
Output is correct |
20 |
Correct |
0 ms |
17640 KB |
Output is correct |
21 |
Correct |
0 ms |
17640 KB |
Output is correct |
22 |
Correct |
0 ms |
17640 KB |
Output is correct |
23 |
Correct |
0 ms |
17640 KB |
Output is correct |
24 |
Correct |
0 ms |
17640 KB |
Output is correct |
25 |
Correct |
0 ms |
17640 KB |
Output is correct |
26 |
Correct |
0 ms |
17640 KB |
Output is correct |
27 |
Correct |
0 ms |
17640 KB |
Output is correct |
28 |
Correct |
0 ms |
17640 KB |
Output is correct |
29 |
Correct |
0 ms |
17640 KB |
Output is correct |
30 |
Correct |
0 ms |
17640 KB |
Output is correct |
31 |
Correct |
0 ms |
17640 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
17640 KB |
Output is correct |
2 |
Correct |
0 ms |
17640 KB |
Output is correct |
3 |
Correct |
0 ms |
17640 KB |
Output is correct |
4 |
Correct |
26 ms |
17640 KB |
Output is correct |
5 |
Correct |
66 ms |
17640 KB |
Output is correct |
6 |
Correct |
83 ms |
17640 KB |
Output is correct |
7 |
Correct |
96 ms |
17640 KB |
Output is correct |
8 |
Correct |
169 ms |
17640 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
17640 KB |
Output is correct |
2 |
Correct |
0 ms |
17640 KB |
Output is correct |
3 |
Correct |
0 ms |
17640 KB |
Output is correct |
4 |
Correct |
0 ms |
17640 KB |
Output is correct |
5 |
Correct |
0 ms |
17640 KB |
Output is correct |
6 |
Correct |
0 ms |
17640 KB |
Output is correct |
7 |
Correct |
0 ms |
17640 KB |
Output is correct |
8 |
Correct |
0 ms |
17640 KB |
Output is correct |
9 |
Correct |
0 ms |
17640 KB |
Output is correct |
10 |
Correct |
0 ms |
17640 KB |
Output is correct |
11 |
Correct |
0 ms |
17640 KB |
Output is correct |
12 |
Correct |
0 ms |
17640 KB |
Output is correct |
13 |
Correct |
0 ms |
17640 KB |
Output is correct |
14 |
Correct |
0 ms |
17640 KB |
Output is correct |
15 |
Correct |
0 ms |
17640 KB |
Output is correct |
16 |
Correct |
0 ms |
17640 KB |
Output is correct |
17 |
Correct |
0 ms |
17640 KB |
Output is correct |
18 |
Correct |
0 ms |
17640 KB |
Output is correct |
19 |
Correct |
0 ms |
17640 KB |
Output is correct |
20 |
Correct |
0 ms |
17640 KB |
Output is correct |
21 |
Correct |
0 ms |
17640 KB |
Output is correct |
22 |
Correct |
0 ms |
17640 KB |
Output is correct |
23 |
Correct |
0 ms |
17640 KB |
Output is correct |
24 |
Correct |
0 ms |
17640 KB |
Output is correct |
25 |
Correct |
0 ms |
17640 KB |
Output is correct |
26 |
Correct |
0 ms |
17640 KB |
Output is correct |
27 |
Correct |
0 ms |
17640 KB |
Output is correct |
28 |
Correct |
0 ms |
17640 KB |
Output is correct |
29 |
Correct |
0 ms |
17640 KB |
Output is correct |
30 |
Correct |
0 ms |
17640 KB |
Output is correct |
31 |
Correct |
0 ms |
17640 KB |
Output is correct |
32 |
Correct |
0 ms |
17640 KB |
Output is correct |
33 |
Correct |
0 ms |
17640 KB |
Output is correct |
34 |
Correct |
0 ms |
17640 KB |
Output is correct |
35 |
Correct |
26 ms |
17640 KB |
Output is correct |
36 |
Correct |
66 ms |
17640 KB |
Output is correct |
37 |
Correct |
83 ms |
17640 KB |
Output is correct |
38 |
Correct |
96 ms |
17640 KB |
Output is correct |
39 |
Correct |
169 ms |
17640 KB |
Output is correct |
40 |
Correct |
3 ms |
17640 KB |
Output is correct |
41 |
Correct |
3 ms |
17640 KB |
Output is correct |
42 |
Correct |
9 ms |
17640 KB |
Output is correct |
43 |
Correct |
63 ms |
17640 KB |
Output is correct |
44 |
Correct |
176 ms |
17640 KB |
Output is correct |
45 |
Correct |
29 ms |
17640 KB |
Output is correct |
46 |
Correct |
103 ms |
17640 KB |
Output is correct |
47 |
Correct |
169 ms |
17640 KB |
Output is correct |
48 |
Correct |
219 ms |
17640 KB |
Output is correct |
49 |
Correct |
136 ms |
19752 KB |
Output is correct |
50 |
Correct |
139 ms |
19752 KB |
Output is correct |