Submission #589680

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
589680	2022-07-05T06:19:47 Z	penguinhacker	Hacker (BOI15_hac)	C++17	40 / 100	1000 ms	2388 KB

hac

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

#define ll long long
#define ar array

const int mxN=5e5;
int n, a[2*mxN], p[2*mxN+1], val[2*mxN+1];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	for (int i=0; i<n; ++i) {
		cin >> a[i];
		a[i+n]=a[i];
	}
	for (int i=0; i<2*n; ++i)
		p[i+1]=p[i]+a[i];
	for (int i=1; i+n/2<=2*n; ++i)
		val[i]=p[i+n/2]-p[i];
	int ans=0;
	/*for (int rep=0; rep<n; ++rep) {
		for (int i=0; i<n; ++i)
			p[i+1]=p[i]+a[i];
		int mx=0;
		for (int j=1; j+n/2-1<n; ++j)
			mx=max(mx, p[j+n/2]-p[j]);
		ans=max(ans, p[n]-mx);
		rotate(a, a+1, a+n);
	}*/
	for (int i=0; i<n; ++i) {
		int mx=0;
		for (int j=1; j<=(n+1)/2; ++j)
			mx=max(mx, val[i+j]);
		ans=max(ans, p[n]-mx);
	}
	cout << ans;
	return 0;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	328 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	328 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	328 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	328 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	5 ms	340 KB	Output is correct
23	Correct	13 ms	468 KB	Output is correct
24	Correct	6 ms	416 KB	Output is correct
25	Correct	16 ms	468 KB	Output is correct
26	Correct	15 ms	472 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	14 ms	468 KB	Output is correct
31	Correct	14 ms	464 KB	Output is correct

Subtask #3

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	13 ms	468 KB	Output is correct
4	Execution timed out	1093 ms	2388 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #4

0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	0 ms	328 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	328 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	328 KB	Output is correct
17	Correct	1 ms	328 KB	Output is correct
18	Correct	0 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	5 ms	340 KB	Output is correct
23	Correct	13 ms	468 KB	Output is correct
24	Correct	6 ms	416 KB	Output is correct
25	Correct	16 ms	468 KB	Output is correct
26	Correct	15 ms	472 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	14 ms	468 KB	Output is correct
31	Correct	14 ms	464 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	13 ms	468 KB	Output is correct
35	Execution timed out	1093 ms	2388 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-