Submission #926378

# Submission time Handle Problem Language Result Execution time Memory
926378 2024-02-12T20:56:30 Z Nonoze Hacker (BOI15_hac) C++17
100 / 100
41 ms 5212 KB
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize(3)

void solve() {
	int n; cin >> n;
	int mid=n/2+n%2, x;
	vector<int> a(n+n, 0);
	for (int i=0; i<n; i++) {
		cin >> x;
		a[i]=(x+a[i-1]);
	}
	for (int i=n; i<n+n; i++) a[i]=a[n-1]+a[i-n];
	deque<int> curr;
	for (int i=0; i<mid; i++) {
		while (!curr.empty() && a[curr.front()+mid-1]-(curr.front()?a[curr.front()-1]:0)>=a[i+mid-1]-a[i-1]) curr.pop_front();
		curr.push_front(i);
	}
	int ans=0;
	for (int i=mid; i<n+mid; i++) {
		ans=max(ans, a[curr.back()+mid-1]-a[curr.back()-1]);
		while (!curr.empty() && a[curr.front()+mid-1]-a[curr.front()-1]>=a[i+mid-1]-a[i-1]) curr.pop_front();
		if (!curr.empty() && curr.back()==i-mid) curr.pop_back();
		curr.push_front(i);
	}
	cout << ans << endl;
	return;
}

signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	solve();
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 360 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 7 ms 860 KB Output is correct
5 Correct 15 ms 1884 KB Output is correct
6 Correct 19 ms 2396 KB Output is correct
7 Correct 23 ms 2652 KB Output is correct
8 Correct 38 ms 4188 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 360 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 7 ms 860 KB Output is correct
36 Correct 15 ms 1884 KB Output is correct
37 Correct 19 ms 2396 KB Output is correct
38 Correct 23 ms 2652 KB Output is correct
39 Correct 38 ms 4188 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 3 ms 600 KB Output is correct
43 Correct 18 ms 2136 KB Output is correct
44 Correct 41 ms 4436 KB Output is correct
45 Correct 7 ms 1112 KB Output is correct
46 Correct 24 ms 2652 KB Output is correct
47 Correct 37 ms 4184 KB Output is correct
48 Correct 41 ms 4360 KB Output is correct
49 Correct 28 ms 5212 KB Output is correct
50 Correct 27 ms 5212 KB Output is correct