#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define all(x) (x).begin(),(x).end()
#define X first
#define Y second
#define sep ' '
#define endl '\n'
#define debug(x) cerr << #x << ": " << x << endl;
constexpr ll MAXN = 1e6 + 10;
constexpr ll MAXM = 26 + 26;
constexpr ll MOD = 998244353;
inline int f(char c) {
if (c >= 'a' && c <= 'z') return c - 'a';
else if (c >= 'A' && c <= 'Z') return c - 'A' + 26;
return c - '0' + 26 + 26;
}
ll F[MAXM][MAXM], T[MAXM][MAXM][MAXM], ans;
int n, nxt[MAXN][MAXM], sz = 0;
vector<string> vec[MAXM];
inline bool add(string s) {
int v = 0;
bool flag = false;
for (char c : s) {
if (!nxt[v][f(c)]) {
flag = true;
nxt[v][f(c)] = ++sz;
}
v = nxt[v][f(c)];
}
return flag;
}
inline void solve(int len) {
memset(F, 0, sizeof F);
memset(T, 0, sizeof T);
memset(nxt, 0, sizeof nxt);
for (string s : vec[len])
if (add(s))
F[f(s.front())][f(s.back())]++;
for (int i = 0; i < MAXM; i++)
for (int j = 0; j < MAXM; j++)
for (int k = 0; k < MAXM; k++)
for (int a = 0; a < MAXM; a++)
T[i][j][k] = (T[i][j][k] + F[a][i] * F[a][j] * F[a][k]) % MOD;
for (int a = 0; a < MAXM; a++)
for (int b = 0; b < MAXM; b++)
for (int c = 0; c < MAXM; c++)
for (int d = 0; d < MAXM; d++)
ans = (ans + T[a][b][c] * T[a][b][d] % MOD * T[a][c][d] % MOD * T[b][c][d]) % MOD;
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int t;
cin >> t;
while (t--) {
string s;
cin >> s;
vec[s.size()].push_back(s);
reverse(all(s));
vec[s.size()].push_back(s);
}
for (int i = 3; i <= 10; i++)
solve(i);
cout << ans << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
734 ms |
211576 KB |
Output is correct |
2 |
Correct |
747 ms |
211612 KB |
Output is correct |
3 |
Correct |
750 ms |
211524 KB |
Output is correct |
4 |
Correct |
739 ms |
211644 KB |
Output is correct |
5 |
Correct |
745 ms |
211644 KB |
Output is correct |
6 |
Correct |
759 ms |
211784 KB |
Output is correct |
7 |
Correct |
744 ms |
211600 KB |
Output is correct |
8 |
Correct |
742 ms |
211572 KB |
Output is correct |
9 |
Correct |
744 ms |
211668 KB |
Output is correct |
10 |
Correct |
743 ms |
211708 KB |
Output is correct |
11 |
Correct |
739 ms |
211576 KB |
Output is correct |
12 |
Correct |
739 ms |
211636 KB |
Output is correct |
13 |
Correct |
747 ms |
211684 KB |
Output is correct |
14 |
Correct |
741 ms |
211524 KB |
Output is correct |
15 |
Correct |
751 ms |
211616 KB |
Output is correct |
16 |
Correct |
742 ms |
211692 KB |
Output is correct |
17 |
Correct |
748 ms |
211612 KB |
Output is correct |
18 |
Correct |
739 ms |
211500 KB |
Output is correct |
19 |
Correct |
742 ms |
211580 KB |
Output is correct |
20 |
Correct |
747 ms |
211600 KB |
Output is correct |
21 |
Correct |
749 ms |
211640 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
734 ms |
211576 KB |
Output is correct |
2 |
Correct |
747 ms |
211612 KB |
Output is correct |
3 |
Correct |
750 ms |
211524 KB |
Output is correct |
4 |
Correct |
739 ms |
211644 KB |
Output is correct |
5 |
Correct |
745 ms |
211644 KB |
Output is correct |
6 |
Correct |
759 ms |
211784 KB |
Output is correct |
7 |
Correct |
744 ms |
211600 KB |
Output is correct |
8 |
Correct |
742 ms |
211572 KB |
Output is correct |
9 |
Correct |
744 ms |
211668 KB |
Output is correct |
10 |
Correct |
743 ms |
211708 KB |
Output is correct |
11 |
Correct |
739 ms |
211576 KB |
Output is correct |
12 |
Correct |
739 ms |
211636 KB |
Output is correct |
13 |
Correct |
747 ms |
211684 KB |
Output is correct |
14 |
Correct |
741 ms |
211524 KB |
Output is correct |
15 |
Correct |
751 ms |
211616 KB |
Output is correct |
16 |
Correct |
742 ms |
211692 KB |
Output is correct |
17 |
Correct |
748 ms |
211612 KB |
Output is correct |
18 |
Correct |
739 ms |
211500 KB |
Output is correct |
19 |
Correct |
742 ms |
211580 KB |
Output is correct |
20 |
Correct |
747 ms |
211600 KB |
Output is correct |
21 |
Correct |
749 ms |
211640 KB |
Output is correct |
22 |
Correct |
744 ms |
211320 KB |
Output is correct |
23 |
Correct |
737 ms |
211384 KB |
Output is correct |
24 |
Correct |
742 ms |
211568 KB |
Output is correct |
25 |
Correct |
740 ms |
211536 KB |
Output is correct |
26 |
Correct |
740 ms |
211516 KB |
Output is correct |
27 |
Correct |
736 ms |
211728 KB |
Output is correct |
28 |
Correct |
743 ms |
211488 KB |
Output is correct |
29 |
Correct |
744 ms |
211408 KB |
Output is correct |
30 |
Correct |
753 ms |
211352 KB |
Output is correct |
31 |
Correct |
736 ms |
211392 KB |
Output is correct |
32 |
Correct |
739 ms |
211276 KB |
Output is correct |
33 |
Correct |
732 ms |
211380 KB |
Output is correct |
34 |
Correct |
743 ms |
211536 KB |
Output is correct |
35 |
Correct |
738 ms |
211540 KB |
Output is correct |
36 |
Correct |
743 ms |
211480 KB |
Output is correct |
37 |
Correct |
847 ms |
211484 KB |
Output is correct |
38 |
Correct |
746 ms |
211528 KB |
Output is correct |
39 |
Correct |
744 ms |
211568 KB |
Output is correct |
40 |
Correct |
743 ms |
211544 KB |
Output is correct |
41 |
Correct |
742 ms |
211544 KB |
Output is correct |
42 |
Correct |
733 ms |
211364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
734 ms |
211576 KB |
Output is correct |
2 |
Correct |
747 ms |
211612 KB |
Output is correct |
3 |
Correct |
750 ms |
211524 KB |
Output is correct |
4 |
Correct |
739 ms |
211644 KB |
Output is correct |
5 |
Correct |
745 ms |
211644 KB |
Output is correct |
6 |
Correct |
759 ms |
211784 KB |
Output is correct |
7 |
Correct |
744 ms |
211600 KB |
Output is correct |
8 |
Correct |
742 ms |
211572 KB |
Output is correct |
9 |
Correct |
744 ms |
211668 KB |
Output is correct |
10 |
Correct |
743 ms |
211708 KB |
Output is correct |
11 |
Correct |
739 ms |
211576 KB |
Output is correct |
12 |
Correct |
739 ms |
211636 KB |
Output is correct |
13 |
Correct |
747 ms |
211684 KB |
Output is correct |
14 |
Correct |
741 ms |
211524 KB |
Output is correct |
15 |
Correct |
751 ms |
211616 KB |
Output is correct |
16 |
Correct |
742 ms |
211692 KB |
Output is correct |
17 |
Correct |
748 ms |
211612 KB |
Output is correct |
18 |
Correct |
739 ms |
211500 KB |
Output is correct |
19 |
Correct |
742 ms |
211580 KB |
Output is correct |
20 |
Correct |
747 ms |
211600 KB |
Output is correct |
21 |
Correct |
749 ms |
211640 KB |
Output is correct |
22 |
Correct |
744 ms |
211320 KB |
Output is correct |
23 |
Correct |
737 ms |
211384 KB |
Output is correct |
24 |
Correct |
742 ms |
211568 KB |
Output is correct |
25 |
Correct |
740 ms |
211536 KB |
Output is correct |
26 |
Correct |
740 ms |
211516 KB |
Output is correct |
27 |
Correct |
736 ms |
211728 KB |
Output is correct |
28 |
Correct |
743 ms |
211488 KB |
Output is correct |
29 |
Correct |
744 ms |
211408 KB |
Output is correct |
30 |
Correct |
753 ms |
211352 KB |
Output is correct |
31 |
Correct |
736 ms |
211392 KB |
Output is correct |
32 |
Correct |
739 ms |
211276 KB |
Output is correct |
33 |
Correct |
732 ms |
211380 KB |
Output is correct |
34 |
Correct |
743 ms |
211536 KB |
Output is correct |
35 |
Correct |
738 ms |
211540 KB |
Output is correct |
36 |
Correct |
743 ms |
211480 KB |
Output is correct |
37 |
Correct |
847 ms |
211484 KB |
Output is correct |
38 |
Correct |
746 ms |
211528 KB |
Output is correct |
39 |
Correct |
744 ms |
211568 KB |
Output is correct |
40 |
Correct |
743 ms |
211544 KB |
Output is correct |
41 |
Correct |
742 ms |
211544 KB |
Output is correct |
42 |
Correct |
733 ms |
211364 KB |
Output is correct |
43 |
Correct |
763 ms |
211284 KB |
Output is correct |
44 |
Correct |
765 ms |
212144 KB |
Output is correct |
45 |
Correct |
762 ms |
212132 KB |
Output is correct |
46 |
Correct |
763 ms |
212136 KB |
Output is correct |
47 |
Correct |
772 ms |
212132 KB |
Output is correct |
48 |
Correct |
765 ms |
212516 KB |
Output is correct |
49 |
Correct |
767 ms |
212512 KB |
Output is correct |
50 |
Correct |
752 ms |
212520 KB |
Output is correct |
51 |
Correct |
759 ms |
212380 KB |
Output is correct |
52 |
Correct |
764 ms |
212096 KB |
Output is correct |
53 |
Correct |
762 ms |
212096 KB |
Output is correct |
54 |
Correct |
773 ms |
212480 KB |
Output is correct |
55 |
Correct |
783 ms |
212616 KB |
Output is correct |
56 |
Correct |
763 ms |
212140 KB |
Output is correct |
57 |
Correct |
762 ms |
212484 KB |
Output is correct |
58 |
Correct |
758 ms |
212544 KB |
Output is correct |
59 |
Correct |
757 ms |
212356 KB |
Output is correct |
60 |
Correct |
752 ms |
212476 KB |
Output is correct |
61 |
Correct |
760 ms |
212160 KB |
Output is correct |
62 |
Correct |
762 ms |
212352 KB |
Output is correct |
63 |
Correct |
758 ms |
212380 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
734 ms |
211576 KB |
Output is correct |
2 |
Correct |
747 ms |
211612 KB |
Output is correct |
3 |
Correct |
750 ms |
211524 KB |
Output is correct |
4 |
Correct |
739 ms |
211644 KB |
Output is correct |
5 |
Correct |
745 ms |
211644 KB |
Output is correct |
6 |
Correct |
759 ms |
211784 KB |
Output is correct |
7 |
Correct |
744 ms |
211600 KB |
Output is correct |
8 |
Correct |
742 ms |
211572 KB |
Output is correct |
9 |
Correct |
744 ms |
211668 KB |
Output is correct |
10 |
Correct |
743 ms |
211708 KB |
Output is correct |
11 |
Correct |
739 ms |
211576 KB |
Output is correct |
12 |
Correct |
739 ms |
211636 KB |
Output is correct |
13 |
Correct |
747 ms |
211684 KB |
Output is correct |
14 |
Correct |
741 ms |
211524 KB |
Output is correct |
15 |
Correct |
751 ms |
211616 KB |
Output is correct |
16 |
Correct |
742 ms |
211692 KB |
Output is correct |
17 |
Correct |
748 ms |
211612 KB |
Output is correct |
18 |
Correct |
739 ms |
211500 KB |
Output is correct |
19 |
Correct |
742 ms |
211580 KB |
Output is correct |
20 |
Correct |
747 ms |
211600 KB |
Output is correct |
21 |
Correct |
749 ms |
211640 KB |
Output is correct |
22 |
Correct |
744 ms |
211320 KB |
Output is correct |
23 |
Correct |
737 ms |
211384 KB |
Output is correct |
24 |
Correct |
742 ms |
211568 KB |
Output is correct |
25 |
Correct |
740 ms |
211536 KB |
Output is correct |
26 |
Correct |
740 ms |
211516 KB |
Output is correct |
27 |
Correct |
736 ms |
211728 KB |
Output is correct |
28 |
Correct |
743 ms |
211488 KB |
Output is correct |
29 |
Correct |
744 ms |
211408 KB |
Output is correct |
30 |
Correct |
753 ms |
211352 KB |
Output is correct |
31 |
Correct |
736 ms |
211392 KB |
Output is correct |
32 |
Correct |
739 ms |
211276 KB |
Output is correct |
33 |
Correct |
732 ms |
211380 KB |
Output is correct |
34 |
Correct |
743 ms |
211536 KB |
Output is correct |
35 |
Correct |
738 ms |
211540 KB |
Output is correct |
36 |
Correct |
743 ms |
211480 KB |
Output is correct |
37 |
Correct |
847 ms |
211484 KB |
Output is correct |
38 |
Correct |
746 ms |
211528 KB |
Output is correct |
39 |
Correct |
744 ms |
211568 KB |
Output is correct |
40 |
Correct |
743 ms |
211544 KB |
Output is correct |
41 |
Correct |
742 ms |
211544 KB |
Output is correct |
42 |
Correct |
733 ms |
211364 KB |
Output is correct |
43 |
Correct |
763 ms |
211284 KB |
Output is correct |
44 |
Correct |
765 ms |
212144 KB |
Output is correct |
45 |
Correct |
762 ms |
212132 KB |
Output is correct |
46 |
Correct |
763 ms |
212136 KB |
Output is correct |
47 |
Correct |
772 ms |
212132 KB |
Output is correct |
48 |
Correct |
765 ms |
212516 KB |
Output is correct |
49 |
Correct |
767 ms |
212512 KB |
Output is correct |
50 |
Correct |
752 ms |
212520 KB |
Output is correct |
51 |
Correct |
759 ms |
212380 KB |
Output is correct |
52 |
Correct |
764 ms |
212096 KB |
Output is correct |
53 |
Correct |
762 ms |
212096 KB |
Output is correct |
54 |
Correct |
773 ms |
212480 KB |
Output is correct |
55 |
Correct |
783 ms |
212616 KB |
Output is correct |
56 |
Correct |
763 ms |
212140 KB |
Output is correct |
57 |
Correct |
762 ms |
212484 KB |
Output is correct |
58 |
Correct |
758 ms |
212544 KB |
Output is correct |
59 |
Correct |
757 ms |
212356 KB |
Output is correct |
60 |
Correct |
752 ms |
212476 KB |
Output is correct |
61 |
Correct |
760 ms |
212160 KB |
Output is correct |
62 |
Correct |
762 ms |
212352 KB |
Output is correct |
63 |
Correct |
758 ms |
212380 KB |
Output is correct |
64 |
Runtime error |
917 ms |
429600 KB |
Execution killed with signal 11 |
65 |
Halted |
0 ms |
0 KB |
- |