답안 #31589 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
31589	2017-08-30T02:06:19 Z	cheater2k	Hacker (BOI15_hac)	C++14	100 / 100	83 ms	11048 KB

#include <bits/stdc++.h>
using namespace std;

const int N = 1000010;

int n;
int a[N], f[N];
int ans;

int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	for (int i = 1; i <= n; ++i) cin >> a[i];
	int sz = (n + 1) / 2;

	for (int i = n + 1; i <= 2 * n; ++i) a[i] = a[i - n];

	for (int i = 1; i <= n + n; ++i) a[i] = a[i - 1] + a[i];

	for (int i = sz; i <= n + n; ++i) {
		f[i] = a[i] - a[i - sz];
		//cerr << i << ' ' << f[i] << endl;
	}

	deque <int> q;

	for (int i = 1; i <= n + n; ++i) {
		while(!q.empty() && f[q.back()] > f[i]) q.pop_back();
		if (!q.empty() && q.front() <= i - sz) q.pop_front();
		q.push_back(i);
		ans = max(ans, f[q.front()]);
	}

	cout << ans << endl;
}

Subtask #1
20.0 / 20.0

#	결과	메모리	Grader output
1	Correct	9988 KB	Output is correct
2	Correct	9988 KB	Output is correct
3	Correct	9988 KB	Output is correct
4	Correct	9988 KB	Output is correct
5	Correct	9988 KB	Output is correct
6	Correct	9988 KB	Output is correct
7	Correct	9988 KB	Output is correct
8	Correct	9988 KB	Output is correct
9	Correct	9988 KB	Output is correct
10	Correct	9988 KB	Output is correct
11	Correct	9988 KB	Output is correct
12	Correct	9988 KB	Output is correct
13	Correct	9988 KB	Output is correct
14	Correct	9988 KB	Output is correct
15	Correct	9988 KB	Output is correct
16	Correct	9988 KB	Output is correct
17	Correct	9988 KB	Output is correct
18	Correct	9988 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	메모리	Grader output
1	Correct	9988 KB	Output is correct
2	Correct	9988 KB	Output is correct
3	Correct	9988 KB	Output is correct
4	Correct	9988 KB	Output is correct
5	Correct	9988 KB	Output is correct
6	Correct	9988 KB	Output is correct
7	Correct	9988 KB	Output is correct
8	Correct	9988 KB	Output is correct
9	Correct	9988 KB	Output is correct
10	Correct	9988 KB	Output is correct
11	Correct	9988 KB	Output is correct
12	Correct	9988 KB	Output is correct
13	Correct	9988 KB	Output is correct
14	Correct	9988 KB	Output is correct
15	Correct	9988 KB	Output is correct
16	Correct	9988 KB	Output is correct
17	Correct	9988 KB	Output is correct
18	Correct	9988 KB	Output is correct
19	Correct	9988 KB	Output is correct
20	Correct	9988 KB	Output is correct
21	Correct	9988 KB	Output is correct
22	Correct	9988 KB	Output is correct
23	Correct	9988 KB	Output is correct
24	Correct	9988 KB	Output is correct
25	Correct	9988 KB	Output is correct
26	Correct	9988 KB	Output is correct
27	Correct	9988 KB	Output is correct
28	Correct	9988 KB	Output is correct
29	Correct	9988 KB	Output is correct
30	Correct	9988 KB	Output is correct
31	Correct	9988 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	9988 KB	Output is correct
2	Correct	0 ms	9988 KB	Output is correct
3	Correct	0 ms	9988 KB	Output is correct
4	Correct	9 ms	10120 KB	Output is correct
5	Correct	23 ms	10388 KB	Output is correct
6	Correct	33 ms	10520 KB	Output is correct
7	Correct	33 ms	10520 KB	Output is correct
8	Correct	83 ms	11048 KB	Output is correct

Subtask #4
40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	9988 KB	Output is correct
2	Correct	0 ms	9988 KB	Output is correct
3	Correct	0 ms	9988 KB	Output is correct
4	Correct	0 ms	9988 KB	Output is correct
5	Correct	0 ms	9988 KB	Output is correct
6	Correct	0 ms	9988 KB	Output is correct
7	Correct	0 ms	9988 KB	Output is correct
8	Correct	0 ms	9988 KB	Output is correct
9	Correct	0 ms	9988 KB	Output is correct
10	Correct	0 ms	9988 KB	Output is correct
11	Correct	0 ms	9988 KB	Output is correct
12	Correct	0 ms	9988 KB	Output is correct
13	Correct	0 ms	9988 KB	Output is correct
14	Correct	0 ms	9988 KB	Output is correct
15	Correct	0 ms	9988 KB	Output is correct
16	Correct	0 ms	9988 KB	Output is correct
17	Correct	0 ms	9988 KB	Output is correct
18	Correct	0 ms	9988 KB	Output is correct
19	Correct	0 ms	9988 KB	Output is correct
20	Correct	0 ms	9988 KB	Output is correct
21	Correct	0 ms	9988 KB	Output is correct
22	Correct	0 ms	9988 KB	Output is correct
23	Correct	0 ms	9988 KB	Output is correct
24	Correct	0 ms	9988 KB	Output is correct
25	Correct	0 ms	9988 KB	Output is correct
26	Correct	0 ms	9988 KB	Output is correct
27	Correct	0 ms	9988 KB	Output is correct
28	Correct	0 ms	9988 KB	Output is correct
29	Correct	0 ms	9988 KB	Output is correct
30	Correct	0 ms	9988 KB	Output is correct
31	Correct	0 ms	9988 KB	Output is correct
32	Correct	0 ms	9988 KB	Output is correct
33	Correct	0 ms	9988 KB	Output is correct
34	Correct	0 ms	9988 KB	Output is correct
35	Correct	9 ms	10120 KB	Output is correct
36	Correct	23 ms	10388 KB	Output is correct
37	Correct	33 ms	10520 KB	Output is correct
38	Correct	33 ms	10520 KB	Output is correct
39	Correct	83 ms	11048 KB	Output is correct
40	Correct	3 ms	9988 KB	Output is correct
41	Correct	0 ms	9988 KB	Output is correct
42	Correct	3 ms	9988 KB	Output is correct
43	Correct	29 ms	10388 KB	Output is correct
44	Correct	79 ms	11048 KB	Output is correct
45	Correct	19 ms	10120 KB	Output is correct
46	Correct	36 ms	10520 KB	Output is correct
47	Correct	59 ms	11048 KB	Output is correct
48	Correct	49 ms	11048 KB	Output is correct
49	Correct	46 ms	11048 KB	Output is correct
50	Correct	53 ms	11048 KB	Output is correct

답안 #31589

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 40.0 / 40.0

Subtask #1
20.0 / 20.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
40.0 / 40.0