#include <bits/stdc++.h>
using namespace std;
#define sz(x) ((int)size(x))
#define all(x) begin(x), end(x)
#define trace(x) cout << #x << ": " << (x) << endl;
typedef long long ll;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }
const int N = 8, A = 62, L = 8, mod = 998244353;
const ll infL = 3e18;
int g[N][3] = {{1, 2, 4},
{0, 3, 5},
{0, 3, 6},
{1, 2, 7},
{0, 5, 6},
{1, 4, 7},
{2, 4, 7},
{3, 5, 6}};
int n;
int cnt[L][A][A], dp2[A][A][A], dp7[A][A][A], dp1[A][A][A], dp4[A][A][A];
int ans = 0;
int len = 0;
int get(char c) {
if ('a' <= c && c <= 'z') {
return c - 'a';
}
if ('A' <= c && c <= 'Z') {
return (c - 'A') + 26;
}
return (c - '0') + 52;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n;
vector<string> stt;
for (int i = 0; i < n; ++i) {
string s;
cin >> s;
string ss = s;
reverse(all(ss));
if (ss != s)
stt.push_back(ss);
stt.push_back(s);
}
sort(all(stt));
stt.resize(unique(all(stt)) - begin(stt));
for (string s: stt) {
++cnt[sz(s) - 3][get(s[0])][get(s.back())];
}
for (len = 0; len < L; ++len) {
for (int x0 = 0; x0 < A; ++x0) {
for (int x3 = 0; x3 < A; ++x3) {
for (int x6 = 0; x6 < A; ++x6) {
ll sum = 0;
for (int x = 0; x < A; ++x) {
sum += cnt[len][x][x0] * cnt[len][x][x3] * cnt[len][x][x6];
}
dp2[x0][x3][x6] = dp7[x0][x3][x6] = dp1[x0][x3][x6] = dp4[x0][x3][x6] = sum % mod;
}
}
}
for (int x0 = 0; x0 < A; ++x0) {
for (int x3 = 0; x3 < A; ++x3) {
for (int x5 = 0; x5 < A; ++x5) {
for (int x6 = 0; x6 < A; ++x6) {
ans = (ans + dp4[x0][x5][x6] * (ll) dp7[x3][x5][x6] % mod * dp1[x0][x3][x5] % mod *
dp2[x0][x3][x6]) % mod;
}
}
}
}
}
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
872 ms |
11280 KB |
Output is correct |
2 |
Correct |
873 ms |
11276 KB |
Output is correct |
3 |
Correct |
875 ms |
11312 KB |
Output is correct |
4 |
Correct |
906 ms |
11300 KB |
Output is correct |
5 |
Correct |
899 ms |
11308 KB |
Output is correct |
6 |
Correct |
888 ms |
11376 KB |
Output is correct |
7 |
Correct |
922 ms |
11308 KB |
Output is correct |
8 |
Correct |
895 ms |
11308 KB |
Output is correct |
9 |
Correct |
906 ms |
11308 KB |
Output is correct |
10 |
Correct |
903 ms |
11304 KB |
Output is correct |
11 |
Correct |
890 ms |
11284 KB |
Output is correct |
12 |
Correct |
882 ms |
11228 KB |
Output is correct |
13 |
Correct |
888 ms |
11268 KB |
Output is correct |
14 |
Correct |
860 ms |
11284 KB |
Output is correct |
15 |
Correct |
880 ms |
11280 KB |
Output is correct |
16 |
Correct |
908 ms |
11276 KB |
Output is correct |
17 |
Correct |
891 ms |
11204 KB |
Output is correct |
18 |
Correct |
907 ms |
11308 KB |
Output is correct |
19 |
Correct |
873 ms |
11288 KB |
Output is correct |
20 |
Correct |
856 ms |
11280 KB |
Output is correct |
21 |
Correct |
863 ms |
11288 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
872 ms |
11280 KB |
Output is correct |
2 |
Correct |
873 ms |
11276 KB |
Output is correct |
3 |
Correct |
875 ms |
11312 KB |
Output is correct |
4 |
Correct |
906 ms |
11300 KB |
Output is correct |
5 |
Correct |
899 ms |
11308 KB |
Output is correct |
6 |
Correct |
888 ms |
11376 KB |
Output is correct |
7 |
Correct |
922 ms |
11308 KB |
Output is correct |
8 |
Correct |
895 ms |
11308 KB |
Output is correct |
9 |
Correct |
906 ms |
11308 KB |
Output is correct |
10 |
Correct |
903 ms |
11304 KB |
Output is correct |
11 |
Correct |
890 ms |
11284 KB |
Output is correct |
12 |
Correct |
882 ms |
11228 KB |
Output is correct |
13 |
Correct |
888 ms |
11268 KB |
Output is correct |
14 |
Correct |
860 ms |
11284 KB |
Output is correct |
15 |
Correct |
880 ms |
11280 KB |
Output is correct |
16 |
Correct |
908 ms |
11276 KB |
Output is correct |
17 |
Correct |
891 ms |
11204 KB |
Output is correct |
18 |
Correct |
907 ms |
11308 KB |
Output is correct |
19 |
Correct |
873 ms |
11288 KB |
Output is correct |
20 |
Correct |
856 ms |
11280 KB |
Output is correct |
21 |
Correct |
863 ms |
11288 KB |
Output is correct |
22 |
Correct |
844 ms |
11260 KB |
Output is correct |
23 |
Correct |
903 ms |
11280 KB |
Output is correct |
24 |
Correct |
845 ms |
11196 KB |
Output is correct |
25 |
Correct |
872 ms |
11196 KB |
Output is correct |
26 |
Correct |
848 ms |
11192 KB |
Output is correct |
27 |
Correct |
839 ms |
11284 KB |
Output is correct |
28 |
Correct |
842 ms |
11180 KB |
Output is correct |
29 |
Correct |
849 ms |
11180 KB |
Output is correct |
30 |
Correct |
837 ms |
11264 KB |
Output is correct |
31 |
Correct |
845 ms |
11308 KB |
Output is correct |
32 |
Correct |
847 ms |
11256 KB |
Output is correct |
33 |
Correct |
863 ms |
11172 KB |
Output is correct |
34 |
Correct |
880 ms |
11204 KB |
Output is correct |
35 |
Correct |
840 ms |
11196 KB |
Output is correct |
36 |
Correct |
841 ms |
11292 KB |
Output is correct |
37 |
Correct |
843 ms |
11196 KB |
Output is correct |
38 |
Correct |
842 ms |
11172 KB |
Output is correct |
39 |
Correct |
844 ms |
11192 KB |
Output is correct |
40 |
Correct |
843 ms |
11240 KB |
Output is correct |
41 |
Correct |
841 ms |
11180 KB |
Output is correct |
42 |
Correct |
841 ms |
11200 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
872 ms |
11280 KB |
Output is correct |
2 |
Correct |
873 ms |
11276 KB |
Output is correct |
3 |
Correct |
875 ms |
11312 KB |
Output is correct |
4 |
Correct |
906 ms |
11300 KB |
Output is correct |
5 |
Correct |
899 ms |
11308 KB |
Output is correct |
6 |
Correct |
888 ms |
11376 KB |
Output is correct |
7 |
Correct |
922 ms |
11308 KB |
Output is correct |
8 |
Correct |
895 ms |
11308 KB |
Output is correct |
9 |
Correct |
906 ms |
11308 KB |
Output is correct |
10 |
Correct |
903 ms |
11304 KB |
Output is correct |
11 |
Correct |
890 ms |
11284 KB |
Output is correct |
12 |
Correct |
882 ms |
11228 KB |
Output is correct |
13 |
Correct |
888 ms |
11268 KB |
Output is correct |
14 |
Correct |
860 ms |
11284 KB |
Output is correct |
15 |
Correct |
880 ms |
11280 KB |
Output is correct |
16 |
Correct |
908 ms |
11276 KB |
Output is correct |
17 |
Correct |
891 ms |
11204 KB |
Output is correct |
18 |
Correct |
907 ms |
11308 KB |
Output is correct |
19 |
Correct |
873 ms |
11288 KB |
Output is correct |
20 |
Correct |
856 ms |
11280 KB |
Output is correct |
21 |
Correct |
863 ms |
11288 KB |
Output is correct |
22 |
Correct |
844 ms |
11260 KB |
Output is correct |
23 |
Correct |
903 ms |
11280 KB |
Output is correct |
24 |
Correct |
845 ms |
11196 KB |
Output is correct |
25 |
Correct |
872 ms |
11196 KB |
Output is correct |
26 |
Correct |
848 ms |
11192 KB |
Output is correct |
27 |
Correct |
839 ms |
11284 KB |
Output is correct |
28 |
Correct |
842 ms |
11180 KB |
Output is correct |
29 |
Correct |
849 ms |
11180 KB |
Output is correct |
30 |
Correct |
837 ms |
11264 KB |
Output is correct |
31 |
Correct |
845 ms |
11308 KB |
Output is correct |
32 |
Correct |
847 ms |
11256 KB |
Output is correct |
33 |
Correct |
863 ms |
11172 KB |
Output is correct |
34 |
Correct |
880 ms |
11204 KB |
Output is correct |
35 |
Correct |
840 ms |
11196 KB |
Output is correct |
36 |
Correct |
841 ms |
11292 KB |
Output is correct |
37 |
Correct |
843 ms |
11196 KB |
Output is correct |
38 |
Correct |
842 ms |
11172 KB |
Output is correct |
39 |
Correct |
844 ms |
11192 KB |
Output is correct |
40 |
Correct |
843 ms |
11240 KB |
Output is correct |
41 |
Correct |
841 ms |
11180 KB |
Output is correct |
42 |
Correct |
841 ms |
11200 KB |
Output is correct |
43 |
Correct |
828 ms |
11180 KB |
Output is correct |
44 |
Correct |
826 ms |
11176 KB |
Output is correct |
45 |
Correct |
818 ms |
11172 KB |
Output is correct |
46 |
Correct |
820 ms |
11168 KB |
Output is correct |
47 |
Correct |
826 ms |
11240 KB |
Output is correct |
48 |
Correct |
853 ms |
11172 KB |
Output is correct |
49 |
Correct |
821 ms |
11188 KB |
Output is correct |
50 |
Correct |
958 ms |
11164 KB |
Output is correct |
51 |
Correct |
854 ms |
11184 KB |
Output is correct |
52 |
Correct |
838 ms |
11184 KB |
Output is correct |
53 |
Correct |
833 ms |
11176 KB |
Output is correct |
54 |
Correct |
825 ms |
11164 KB |
Output is correct |
55 |
Correct |
836 ms |
11168 KB |
Output is correct |
56 |
Correct |
845 ms |
11176 KB |
Output is correct |
57 |
Correct |
826 ms |
11160 KB |
Output is correct |
58 |
Correct |
827 ms |
11168 KB |
Output is correct |
59 |
Correct |
836 ms |
11164 KB |
Output is correct |
60 |
Correct |
821 ms |
11164 KB |
Output is correct |
61 |
Correct |
864 ms |
11176 KB |
Output is correct |
62 |
Correct |
830 ms |
11164 KB |
Output is correct |
63 |
Correct |
829 ms |
11184 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
872 ms |
11280 KB |
Output is correct |
2 |
Correct |
873 ms |
11276 KB |
Output is correct |
3 |
Correct |
875 ms |
11312 KB |
Output is correct |
4 |
Correct |
906 ms |
11300 KB |
Output is correct |
5 |
Correct |
899 ms |
11308 KB |
Output is correct |
6 |
Correct |
888 ms |
11376 KB |
Output is correct |
7 |
Correct |
922 ms |
11308 KB |
Output is correct |
8 |
Correct |
895 ms |
11308 KB |
Output is correct |
9 |
Correct |
906 ms |
11308 KB |
Output is correct |
10 |
Correct |
903 ms |
11304 KB |
Output is correct |
11 |
Correct |
890 ms |
11284 KB |
Output is correct |
12 |
Correct |
882 ms |
11228 KB |
Output is correct |
13 |
Correct |
888 ms |
11268 KB |
Output is correct |
14 |
Correct |
860 ms |
11284 KB |
Output is correct |
15 |
Correct |
880 ms |
11280 KB |
Output is correct |
16 |
Correct |
908 ms |
11276 KB |
Output is correct |
17 |
Correct |
891 ms |
11204 KB |
Output is correct |
18 |
Correct |
907 ms |
11308 KB |
Output is correct |
19 |
Correct |
873 ms |
11288 KB |
Output is correct |
20 |
Correct |
856 ms |
11280 KB |
Output is correct |
21 |
Correct |
863 ms |
11288 KB |
Output is correct |
22 |
Correct |
844 ms |
11260 KB |
Output is correct |
23 |
Correct |
903 ms |
11280 KB |
Output is correct |
24 |
Correct |
845 ms |
11196 KB |
Output is correct |
25 |
Correct |
872 ms |
11196 KB |
Output is correct |
26 |
Correct |
848 ms |
11192 KB |
Output is correct |
27 |
Correct |
839 ms |
11284 KB |
Output is correct |
28 |
Correct |
842 ms |
11180 KB |
Output is correct |
29 |
Correct |
849 ms |
11180 KB |
Output is correct |
30 |
Correct |
837 ms |
11264 KB |
Output is correct |
31 |
Correct |
845 ms |
11308 KB |
Output is correct |
32 |
Correct |
847 ms |
11256 KB |
Output is correct |
33 |
Correct |
863 ms |
11172 KB |
Output is correct |
34 |
Correct |
880 ms |
11204 KB |
Output is correct |
35 |
Correct |
840 ms |
11196 KB |
Output is correct |
36 |
Correct |
841 ms |
11292 KB |
Output is correct |
37 |
Correct |
843 ms |
11196 KB |
Output is correct |
38 |
Correct |
842 ms |
11172 KB |
Output is correct |
39 |
Correct |
844 ms |
11192 KB |
Output is correct |
40 |
Correct |
843 ms |
11240 KB |
Output is correct |
41 |
Correct |
841 ms |
11180 KB |
Output is correct |
42 |
Correct |
841 ms |
11200 KB |
Output is correct |
43 |
Correct |
828 ms |
11180 KB |
Output is correct |
44 |
Correct |
826 ms |
11176 KB |
Output is correct |
45 |
Correct |
818 ms |
11172 KB |
Output is correct |
46 |
Correct |
820 ms |
11168 KB |
Output is correct |
47 |
Correct |
826 ms |
11240 KB |
Output is correct |
48 |
Correct |
853 ms |
11172 KB |
Output is correct |
49 |
Correct |
821 ms |
11188 KB |
Output is correct |
50 |
Correct |
958 ms |
11164 KB |
Output is correct |
51 |
Correct |
854 ms |
11184 KB |
Output is correct |
52 |
Correct |
838 ms |
11184 KB |
Output is correct |
53 |
Correct |
833 ms |
11176 KB |
Output is correct |
54 |
Correct |
825 ms |
11164 KB |
Output is correct |
55 |
Correct |
836 ms |
11168 KB |
Output is correct |
56 |
Correct |
845 ms |
11176 KB |
Output is correct |
57 |
Correct |
826 ms |
11160 KB |
Output is correct |
58 |
Correct |
827 ms |
11168 KB |
Output is correct |
59 |
Correct |
836 ms |
11164 KB |
Output is correct |
60 |
Correct |
821 ms |
11164 KB |
Output is correct |
61 |
Correct |
864 ms |
11176 KB |
Output is correct |
62 |
Correct |
830 ms |
11164 KB |
Output is correct |
63 |
Correct |
829 ms |
11184 KB |
Output is correct |
64 |
Correct |
833 ms |
11292 KB |
Output is correct |
65 |
Correct |
843 ms |
11216 KB |
Output is correct |
66 |
Correct |
832 ms |
11244 KB |
Output is correct |
67 |
Correct |
825 ms |
11300 KB |
Output is correct |
68 |
Correct |
842 ms |
11296 KB |
Output is correct |
69 |
Correct |
828 ms |
11300 KB |
Output is correct |
70 |
Correct |
877 ms |
11180 KB |
Output is correct |
71 |
Correct |
892 ms |
11308 KB |
Output is correct |
72 |
Correct |
867 ms |
11180 KB |
Output is correct |
73 |
Correct |
851 ms |
11300 KB |
Output is correct |
74 |
Correct |
849 ms |
11296 KB |
Output is correct |
75 |
Correct |
876 ms |
11288 KB |
Output is correct |
76 |
Correct |
866 ms |
11300 KB |
Output is correct |
77 |
Correct |
857 ms |
11300 KB |
Output is correct |
78 |
Correct |
846 ms |
11296 KB |
Output is correct |
79 |
Correct |
830 ms |
11252 KB |
Output is correct |
80 |
Correct |
880 ms |
11176 KB |
Output is correct |
81 |
Correct |
930 ms |
11176 KB |
Output is correct |
82 |
Correct |
840 ms |
11292 KB |
Output is correct |
83 |
Correct |
814 ms |
11296 KB |
Output is correct |
84 |
Correct |
835 ms |
11176 KB |
Output is correct |