Submission #243618

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
243618	2020-07-01T12:27:31 Z	islingr	Palindromes (APIO14_palindrome)	C++14	100 / 100	34 ms	35068 KB

palindrome

#include <iostream>
using namespace std;

const int N = 5 << 16, A = 26;
int link[N], len[N], nxt[N][A], occ[N], cnt = 2, lst = 2;
char s[N];

signed main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	cin >> s;
	len[1] = -1; link[1] = 1;
	len[2] = -0; link[2] = 1;
	for (int i = 0; s[i]; ++i) {
		int cur = lst, a = s[i] - 'a';
		while (s[i - len[cur] - 1] != s[i]) cur = link[cur];
		int &tmp = nxt[cur][a];
		if (!tmp) {
			tmp = ++cnt;
			len[tmp] = len[cur] + 2;
			if (cur != 1) {
				cur = link[cur];
				while (s[i - len[cur] - 1] != s[i]) cur = link[cur];
				link[tmp] = nxt[cur][a];
			} else link[tmp] = 2;
		}
		lst = tmp; ++occ[lst];
	}
	long long ans = 0;
	for (int i = cnt; i > 2; --i) {
		occ[link[i]] += occ[i];
		ans = max(ans, 1ll * occ[i] * len[i]);
	}
	cout << ans;
}

Subtask #1

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	4 ms	384 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	5 ms	384 KB	Output is correct
22	Correct	5 ms	384 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	5 ms	384 KB	Output is correct
25	Correct	4 ms	384 KB	Output is correct
26	Correct	5 ms	384 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	5 ms	384 KB	Output is correct
29	Correct	5 ms	384 KB	Output is correct
30	Correct	4 ms	384 KB	Output is correct
31	Correct	5 ms	512 KB	Output is correct
32	Correct	5 ms	384 KB	Output is correct

Subtask #2

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	512 KB	Output is correct
2	Correct	5 ms	512 KB	Output is correct
3	Correct	5 ms	512 KB	Output is correct
4	Correct	6 ms	512 KB	Output is correct
5	Correct	5 ms	512 KB	Output is correct
6	Correct	5 ms	512 KB	Output is correct
7	Correct	5 ms	512 KB	Output is correct
8	Correct	5 ms	512 KB	Output is correct
9	Correct	4 ms	512 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct

Subtask #3

24.0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	1536 KB	Output is correct
2	Correct	5 ms	1536 KB	Output is correct
3	Correct	6 ms	1536 KB	Output is correct
4	Correct	5 ms	1536 KB	Output is correct
5	Correct	6 ms	1536 KB	Output is correct
6	Correct	5 ms	1536 KB	Output is correct
7	Correct	5 ms	1536 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	1152 KB	Output is correct

Subtask #4

26.0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	14 ms	11904 KB	Output is correct
2	Correct	14 ms	11904 KB	Output is correct
3	Correct	15 ms	11904 KB	Output is correct
4	Correct	14 ms	11904 KB	Output is correct
5	Correct	15 ms	11904 KB	Output is correct
6	Correct	12 ms	8832 KB	Output is correct
7	Correct	13 ms	10112 KB	Output is correct
8	Correct	6 ms	768 KB	Output is correct
9	Correct	9 ms	3200 KB	Output is correct
10	Correct	14 ms	10240 KB	Output is correct

Subtask #5

27.0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	34 ms	35064 KB	Output is correct
2	Correct	32 ms	35064 KB	Output is correct
3	Correct	34 ms	34936 KB	Output is correct
4	Correct	34 ms	35068 KB	Output is correct
5	Correct	32 ms	34944 KB	Output is correct
6	Correct	30 ms	31232 KB	Output is correct
7	Correct	32 ms	29312 KB	Output is correct
8	Correct	9 ms	1152 KB	Output is correct
9	Correct	10 ms	1152 KB	Output is correct
10	Correct	27 ms	28792 KB	Output is correct
11	Correct	32 ms	35064 KB	Output is correct
12	Correct	12 ms	4224 KB	Output is correct