#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;
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 |
170 ms |
108788 KB |
Output is correct |
2 |
Correct |
174 ms |
109736 KB |
Output is correct |
3 |
Correct |
169 ms |
109640 KB |
Output is correct |
4 |
Correct |
170 ms |
109696 KB |
Output is correct |
5 |
Correct |
171 ms |
109752 KB |
Output is correct |
6 |
Correct |
176 ms |
109900 KB |
Output is correct |
7 |
Correct |
169 ms |
109720 KB |
Output is correct |
8 |
Correct |
173 ms |
109668 KB |
Output is correct |
9 |
Correct |
171 ms |
109652 KB |
Output is correct |
10 |
Correct |
173 ms |
109716 KB |
Output is correct |
11 |
Correct |
185 ms |
109940 KB |
Output is correct |
12 |
Correct |
172 ms |
109656 KB |
Output is correct |
13 |
Correct |
171 ms |
109760 KB |
Output is correct |
14 |
Correct |
169 ms |
109612 KB |
Output is correct |
15 |
Correct |
174 ms |
109712 KB |
Output is correct |
16 |
Correct |
170 ms |
109748 KB |
Output is correct |
17 |
Correct |
174 ms |
109728 KB |
Output is correct |
18 |
Correct |
178 ms |
109500 KB |
Output is correct |
19 |
Correct |
171 ms |
109804 KB |
Output is correct |
20 |
Correct |
172 ms |
109600 KB |
Output is correct |
21 |
Correct |
173 ms |
109748 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
170 ms |
108788 KB |
Output is correct |
2 |
Correct |
174 ms |
109736 KB |
Output is correct |
3 |
Correct |
169 ms |
109640 KB |
Output is correct |
4 |
Correct |
170 ms |
109696 KB |
Output is correct |
5 |
Correct |
171 ms |
109752 KB |
Output is correct |
6 |
Correct |
176 ms |
109900 KB |
Output is correct |
7 |
Correct |
169 ms |
109720 KB |
Output is correct |
8 |
Correct |
173 ms |
109668 KB |
Output is correct |
9 |
Correct |
171 ms |
109652 KB |
Output is correct |
10 |
Correct |
173 ms |
109716 KB |
Output is correct |
11 |
Correct |
185 ms |
109940 KB |
Output is correct |
12 |
Correct |
172 ms |
109656 KB |
Output is correct |
13 |
Correct |
171 ms |
109760 KB |
Output is correct |
14 |
Correct |
169 ms |
109612 KB |
Output is correct |
15 |
Correct |
174 ms |
109712 KB |
Output is correct |
16 |
Correct |
170 ms |
109748 KB |
Output is correct |
17 |
Correct |
174 ms |
109728 KB |
Output is correct |
18 |
Correct |
178 ms |
109500 KB |
Output is correct |
19 |
Correct |
171 ms |
109804 KB |
Output is correct |
20 |
Correct |
172 ms |
109600 KB |
Output is correct |
21 |
Correct |
173 ms |
109748 KB |
Output is correct |
22 |
Correct |
174 ms |
109336 KB |
Output is correct |
23 |
Correct |
169 ms |
109416 KB |
Output is correct |
24 |
Correct |
167 ms |
109496 KB |
Output is correct |
25 |
Correct |
173 ms |
109608 KB |
Output is correct |
26 |
Correct |
171 ms |
109444 KB |
Output is correct |
27 |
Correct |
187 ms |
109592 KB |
Output is correct |
28 |
Correct |
170 ms |
109420 KB |
Output is correct |
29 |
Correct |
172 ms |
109432 KB |
Output is correct |
30 |
Correct |
173 ms |
109436 KB |
Output is correct |
31 |
Correct |
170 ms |
109312 KB |
Output is correct |
32 |
Correct |
171 ms |
109348 KB |
Output is correct |
33 |
Correct |
170 ms |
109348 KB |
Output is correct |
34 |
Correct |
172 ms |
109408 KB |
Output is correct |
35 |
Correct |
168 ms |
109588 KB |
Output is correct |
36 |
Correct |
175 ms |
109584 KB |
Output is correct |
37 |
Correct |
168 ms |
109528 KB |
Output is correct |
38 |
Correct |
169 ms |
109560 KB |
Output is correct |
39 |
Correct |
166 ms |
109476 KB |
Output is correct |
40 |
Correct |
168 ms |
109548 KB |
Output is correct |
41 |
Correct |
169 ms |
109528 KB |
Output is correct |
42 |
Correct |
169 ms |
109364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
170 ms |
108788 KB |
Output is correct |
2 |
Correct |
174 ms |
109736 KB |
Output is correct |
3 |
Correct |
169 ms |
109640 KB |
Output is correct |
4 |
Correct |
170 ms |
109696 KB |
Output is correct |
5 |
Correct |
171 ms |
109752 KB |
Output is correct |
6 |
Correct |
176 ms |
109900 KB |
Output is correct |
7 |
Correct |
169 ms |
109720 KB |
Output is correct |
8 |
Correct |
173 ms |
109668 KB |
Output is correct |
9 |
Correct |
171 ms |
109652 KB |
Output is correct |
10 |
Correct |
173 ms |
109716 KB |
Output is correct |
11 |
Correct |
185 ms |
109940 KB |
Output is correct |
12 |
Correct |
172 ms |
109656 KB |
Output is correct |
13 |
Correct |
171 ms |
109760 KB |
Output is correct |
14 |
Correct |
169 ms |
109612 KB |
Output is correct |
15 |
Correct |
174 ms |
109712 KB |
Output is correct |
16 |
Correct |
170 ms |
109748 KB |
Output is correct |
17 |
Correct |
174 ms |
109728 KB |
Output is correct |
18 |
Correct |
178 ms |
109500 KB |
Output is correct |
19 |
Correct |
171 ms |
109804 KB |
Output is correct |
20 |
Correct |
172 ms |
109600 KB |
Output is correct |
21 |
Correct |
173 ms |
109748 KB |
Output is correct |
22 |
Correct |
174 ms |
109336 KB |
Output is correct |
23 |
Correct |
169 ms |
109416 KB |
Output is correct |
24 |
Correct |
167 ms |
109496 KB |
Output is correct |
25 |
Correct |
173 ms |
109608 KB |
Output is correct |
26 |
Correct |
171 ms |
109444 KB |
Output is correct |
27 |
Correct |
187 ms |
109592 KB |
Output is correct |
28 |
Correct |
170 ms |
109420 KB |
Output is correct |
29 |
Correct |
172 ms |
109432 KB |
Output is correct |
30 |
Correct |
173 ms |
109436 KB |
Output is correct |
31 |
Correct |
170 ms |
109312 KB |
Output is correct |
32 |
Correct |
171 ms |
109348 KB |
Output is correct |
33 |
Correct |
170 ms |
109348 KB |
Output is correct |
34 |
Correct |
172 ms |
109408 KB |
Output is correct |
35 |
Correct |
168 ms |
109588 KB |
Output is correct |
36 |
Correct |
175 ms |
109584 KB |
Output is correct |
37 |
Correct |
168 ms |
109528 KB |
Output is correct |
38 |
Correct |
169 ms |
109560 KB |
Output is correct |
39 |
Correct |
166 ms |
109476 KB |
Output is correct |
40 |
Correct |
168 ms |
109548 KB |
Output is correct |
41 |
Correct |
169 ms |
109528 KB |
Output is correct |
42 |
Correct |
169 ms |
109364 KB |
Output is correct |
43 |
Runtime error |
258 ms |
208144 KB |
Execution killed with signal 11 |
44 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
170 ms |
108788 KB |
Output is correct |
2 |
Correct |
174 ms |
109736 KB |
Output is correct |
3 |
Correct |
169 ms |
109640 KB |
Output is correct |
4 |
Correct |
170 ms |
109696 KB |
Output is correct |
5 |
Correct |
171 ms |
109752 KB |
Output is correct |
6 |
Correct |
176 ms |
109900 KB |
Output is correct |
7 |
Correct |
169 ms |
109720 KB |
Output is correct |
8 |
Correct |
173 ms |
109668 KB |
Output is correct |
9 |
Correct |
171 ms |
109652 KB |
Output is correct |
10 |
Correct |
173 ms |
109716 KB |
Output is correct |
11 |
Correct |
185 ms |
109940 KB |
Output is correct |
12 |
Correct |
172 ms |
109656 KB |
Output is correct |
13 |
Correct |
171 ms |
109760 KB |
Output is correct |
14 |
Correct |
169 ms |
109612 KB |
Output is correct |
15 |
Correct |
174 ms |
109712 KB |
Output is correct |
16 |
Correct |
170 ms |
109748 KB |
Output is correct |
17 |
Correct |
174 ms |
109728 KB |
Output is correct |
18 |
Correct |
178 ms |
109500 KB |
Output is correct |
19 |
Correct |
171 ms |
109804 KB |
Output is correct |
20 |
Correct |
172 ms |
109600 KB |
Output is correct |
21 |
Correct |
173 ms |
109748 KB |
Output is correct |
22 |
Correct |
174 ms |
109336 KB |
Output is correct |
23 |
Correct |
169 ms |
109416 KB |
Output is correct |
24 |
Correct |
167 ms |
109496 KB |
Output is correct |
25 |
Correct |
173 ms |
109608 KB |
Output is correct |
26 |
Correct |
171 ms |
109444 KB |
Output is correct |
27 |
Correct |
187 ms |
109592 KB |
Output is correct |
28 |
Correct |
170 ms |
109420 KB |
Output is correct |
29 |
Correct |
172 ms |
109432 KB |
Output is correct |
30 |
Correct |
173 ms |
109436 KB |
Output is correct |
31 |
Correct |
170 ms |
109312 KB |
Output is correct |
32 |
Correct |
171 ms |
109348 KB |
Output is correct |
33 |
Correct |
170 ms |
109348 KB |
Output is correct |
34 |
Correct |
172 ms |
109408 KB |
Output is correct |
35 |
Correct |
168 ms |
109588 KB |
Output is correct |
36 |
Correct |
175 ms |
109584 KB |
Output is correct |
37 |
Correct |
168 ms |
109528 KB |
Output is correct |
38 |
Correct |
169 ms |
109560 KB |
Output is correct |
39 |
Correct |
166 ms |
109476 KB |
Output is correct |
40 |
Correct |
168 ms |
109548 KB |
Output is correct |
41 |
Correct |
169 ms |
109528 KB |
Output is correct |
42 |
Correct |
169 ms |
109364 KB |
Output is correct |
43 |
Runtime error |
258 ms |
208144 KB |
Execution killed with signal 11 |
44 |
Halted |
0 ms |
0 KB |
- |