Submission #47074

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
47074	2018-04-27T09:18:55 Z	Bruteforceman	Hacker (BOI15_hac)	C++11	40 / 100	1000 ms	2268 KB

hac

#include "bits/stdc++.h"
using namespace std;
int n;
int a[500010];
long long p[500010];
const long long inf = 1e17;

int main(int argc, char const *argv[])
{
	ios_base :: sync_with_stdio (false);
	cin.tie (0);
	cin >> n;
	for(int i = 0; i < n; i++) {
		cin >> a[i];
	}
	int move = (n + 1) >> 1;
	long long sum = 0;
	for(int i = 0; i < move; i++) {
		sum += a[i];
	}
	for(int i = 0; i < n; i++) {
		p[i] = sum;
		sum -= a[i];
		sum += a[(i + move) % n];
	}
	long long ans = 0;
	for(int i = 0; i < n; i++) {
		long long opt = inf;
		for(int j = 0; j < move; j++) {
			opt = min(opt, p[(i + j) % n]);
		}
		ans = max(ans, opt);
	}
	cout << ans << endl;
	return 0;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	500 KB	Output is correct
4	Correct	2 ms	500 KB	Output is correct
5	Correct	2 ms	500 KB	Output is correct
6	Correct	2 ms	500 KB	Output is correct
7	Correct	2 ms	536 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	2 ms	700 KB	Output is correct
11	Correct	2 ms	800 KB	Output is correct
12	Correct	2 ms	800 KB	Output is correct
13	Correct	2 ms	800 KB	Output is correct
14	Correct	2 ms	800 KB	Output is correct
15	Correct	2 ms	800 KB	Output is correct
16	Correct	2 ms	800 KB	Output is correct
17	Correct	2 ms	800 KB	Output is correct
18	Correct	2 ms	800 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	500 KB	Output is correct
4	Correct	2 ms	500 KB	Output is correct
5	Correct	2 ms	500 KB	Output is correct
6	Correct	2 ms	500 KB	Output is correct
7	Correct	2 ms	536 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	2 ms	700 KB	Output is correct
11	Correct	2 ms	800 KB	Output is correct
12	Correct	2 ms	800 KB	Output is correct
13	Correct	2 ms	800 KB	Output is correct
14	Correct	2 ms	800 KB	Output is correct
15	Correct	2 ms	800 KB	Output is correct
16	Correct	2 ms	800 KB	Output is correct
17	Correct	2 ms	800 KB	Output is correct
18	Correct	2 ms	800 KB	Output is correct
19	Correct	3 ms	800 KB	Output is correct
20	Correct	4 ms	800 KB	Output is correct
21	Correct	3 ms	800 KB	Output is correct
22	Correct	18 ms	800 KB	Output is correct
23	Correct	53 ms	828 KB	Output is correct
24	Correct	18 ms	828 KB	Output is correct
25	Correct	46 ms	848 KB	Output is correct
26	Correct	47 ms	1016 KB	Output is correct
27	Correct	2 ms	1016 KB	Output is correct
28	Correct	2 ms	1016 KB	Output is correct
29	Correct	2 ms	1016 KB	Output is correct
30	Correct	47 ms	1016 KB	Output is correct
31	Correct	49 ms	1016 KB	Output is correct

Subtask #3

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	1016 KB	Output is correct
2	Correct	2 ms	1016 KB	Output is correct
3	Correct	47 ms	1016 KB	Output is correct
4	Execution timed out	1073 ms	2268 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #4

0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	500 KB	Output is correct
4	Correct	2 ms	500 KB	Output is correct
5	Correct	2 ms	500 KB	Output is correct
6	Correct	2 ms	500 KB	Output is correct
7	Correct	2 ms	536 KB	Output is correct
8	Correct	2 ms	544 KB	Output is correct
9	Correct	2 ms	640 KB	Output is correct
10	Correct	2 ms	700 KB	Output is correct
11	Correct	2 ms	800 KB	Output is correct
12	Correct	2 ms	800 KB	Output is correct
13	Correct	2 ms	800 KB	Output is correct
14	Correct	2 ms	800 KB	Output is correct
15	Correct	2 ms	800 KB	Output is correct
16	Correct	2 ms	800 KB	Output is correct
17	Correct	2 ms	800 KB	Output is correct
18	Correct	2 ms	800 KB	Output is correct
19	Correct	3 ms	800 KB	Output is correct
20	Correct	4 ms	800 KB	Output is correct
21	Correct	3 ms	800 KB	Output is correct
22	Correct	18 ms	800 KB	Output is correct
23	Correct	53 ms	828 KB	Output is correct
24	Correct	18 ms	828 KB	Output is correct
25	Correct	46 ms	848 KB	Output is correct
26	Correct	47 ms	1016 KB	Output is correct
27	Correct	2 ms	1016 KB	Output is correct
28	Correct	2 ms	1016 KB	Output is correct
29	Correct	2 ms	1016 KB	Output is correct
30	Correct	47 ms	1016 KB	Output is correct
31	Correct	49 ms	1016 KB	Output is correct
32	Correct	2 ms	1016 KB	Output is correct
33	Correct	2 ms	1016 KB	Output is correct
34	Correct	47 ms	1016 KB	Output is correct
35	Execution timed out	1073 ms	2268 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-