//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
#define int long long
map<char, int> mp;
int c[11][62][62][62];
int aa[11][63][63];
const int mod = 998244353;
int mul(int x, int y){
if((x*y)>mod) return x*y%mod;
return x*y;
}
void sum(int &a){
if(a>=mod) a-=mod;
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int cnt=0;
for(int i='a'; i<='z'; i++) mp[i]=cnt++;
for(int i='A'; i<='Z'; i++) mp[i]=cnt++;
for(int i='0'; i<='9'; i++) mp[i]=cnt++;
int n; cin>>n;
vector<string> s(n), x;
for(auto &i: s){
cin >> i;
string x = i;
reverse(x.begin(), x.end());
if(x<i) i=x;
}
sort(s.begin(), s.end());
for(int i=0; i<n; i++){
if(i==0||s[i]!=s[i-1]) x.push_back(s[i]);
}
s=x;
n = s.size();
for(int i=0; i<n; i++){
string x=s[i];
reverse(x.begin(), x.end());
if(x==s[i]) aa[x.size()][mp[x[0]]][mp[x.back()]]++;
else aa[x.size()][mp[x[0]]][mp[x.back()]]++, aa[x.size()][mp[x.back()]][mp[x[0]]]++;
}
for(int i=3; i<=10; i++){
for(int j=0; j<62; j++){
for(int a=0; a<62; a++){
for(int b=a; b<62; b++){
for(int cc=b; cc<62; cc++){
c[i][a][b][cc] += mul(aa[i][j][a], mul(aa[i][j][b], aa[i][j][cc]));
sum(c[i][a][b][cc]);
}
}
}
}
}
int ans=0;
for(int i=3; i<=10; i++){
for(int a=0; a<62; a++){
for(int b=a; b<62; b++){
for(int cc=b; cc<62; cc++){
for(int d=cc; d<62; d++){
int val = 0;
if(d==a) val = 1;
else if(d==b) val=4;
else if(cc==a) val= 4;
else if(b==a && d==cc) val=6;
else if(d==cc || b==a) val=12;
else if(cc==b) val = 12;
else val=24;
ans += mul(val, mul(mul(c[i][a][b][cc], c[i][a][b][d]), mul(c[i][b][cc][d], c[i][a][cc][d])));
sum(ans);
}
}
}
}
}
cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
108 ms |
19112 KB |
Output is correct |
2 |
Correct |
107 ms |
18628 KB |
Output is correct |
3 |
Correct |
109 ms |
18576 KB |
Output is correct |
4 |
Correct |
116 ms |
18800 KB |
Output is correct |
5 |
Correct |
111 ms |
18548 KB |
Output is correct |
6 |
Correct |
105 ms |
18620 KB |
Output is correct |
7 |
Correct |
113 ms |
19832 KB |
Output is correct |
8 |
Correct |
106 ms |
18620 KB |
Output is correct |
9 |
Correct |
106 ms |
18564 KB |
Output is correct |
10 |
Correct |
109 ms |
19128 KB |
Output is correct |
11 |
Correct |
108 ms |
18624 KB |
Output is correct |
12 |
Correct |
119 ms |
19572 KB |
Output is correct |
13 |
Correct |
109 ms |
19076 KB |
Output is correct |
14 |
Correct |
118 ms |
19788 KB |
Output is correct |
15 |
Correct |
107 ms |
18624 KB |
Output is correct |
16 |
Correct |
118 ms |
19076 KB |
Output is correct |
17 |
Correct |
109 ms |
18624 KB |
Output is correct |
18 |
Correct |
108 ms |
18588 KB |
Output is correct |
19 |
Correct |
107 ms |
18620 KB |
Output is correct |
20 |
Correct |
126 ms |
19576 KB |
Output is correct |
21 |
Correct |
109 ms |
18620 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
108 ms |
19112 KB |
Output is correct |
2 |
Correct |
107 ms |
18628 KB |
Output is correct |
3 |
Correct |
109 ms |
18576 KB |
Output is correct |
4 |
Correct |
116 ms |
18800 KB |
Output is correct |
5 |
Correct |
111 ms |
18548 KB |
Output is correct |
6 |
Correct |
105 ms |
18620 KB |
Output is correct |
7 |
Correct |
113 ms |
19832 KB |
Output is correct |
8 |
Correct |
106 ms |
18620 KB |
Output is correct |
9 |
Correct |
106 ms |
18564 KB |
Output is correct |
10 |
Correct |
109 ms |
19128 KB |
Output is correct |
11 |
Correct |
108 ms |
18624 KB |
Output is correct |
12 |
Correct |
119 ms |
19572 KB |
Output is correct |
13 |
Correct |
109 ms |
19076 KB |
Output is correct |
14 |
Correct |
118 ms |
19788 KB |
Output is correct |
15 |
Correct |
107 ms |
18624 KB |
Output is correct |
16 |
Correct |
118 ms |
19076 KB |
Output is correct |
17 |
Correct |
109 ms |
18624 KB |
Output is correct |
18 |
Correct |
108 ms |
18588 KB |
Output is correct |
19 |
Correct |
107 ms |
18620 KB |
Output is correct |
20 |
Correct |
126 ms |
19576 KB |
Output is correct |
21 |
Correct |
109 ms |
18620 KB |
Output is correct |
22 |
Correct |
107 ms |
18880 KB |
Output is correct |
23 |
Correct |
107 ms |
19648 KB |
Output is correct |
24 |
Correct |
111 ms |
18804 KB |
Output is correct |
25 |
Correct |
124 ms |
18872 KB |
Output is correct |
26 |
Correct |
113 ms |
18920 KB |
Output is correct |
27 |
Correct |
106 ms |
18628 KB |
Output is correct |
28 |
Correct |
112 ms |
19132 KB |
Output is correct |
29 |
Correct |
108 ms |
18952 KB |
Output is correct |
30 |
Correct |
109 ms |
18808 KB |
Output is correct |
31 |
Correct |
113 ms |
18728 KB |
Output is correct |
32 |
Correct |
111 ms |
19132 KB |
Output is correct |
33 |
Correct |
110 ms |
18808 KB |
Output is correct |
34 |
Correct |
111 ms |
18664 KB |
Output is correct |
35 |
Correct |
128 ms |
19136 KB |
Output is correct |
36 |
Correct |
111 ms |
19648 KB |
Output is correct |
37 |
Correct |
111 ms |
19824 KB |
Output is correct |
38 |
Correct |
107 ms |
18856 KB |
Output is correct |
39 |
Correct |
108 ms |
19292 KB |
Output is correct |
40 |
Correct |
107 ms |
18112 KB |
Output is correct |
41 |
Correct |
108 ms |
18208 KB |
Output is correct |
42 |
Correct |
107 ms |
17852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
108 ms |
19112 KB |
Output is correct |
2 |
Correct |
107 ms |
18628 KB |
Output is correct |
3 |
Correct |
109 ms |
18576 KB |
Output is correct |
4 |
Correct |
116 ms |
18800 KB |
Output is correct |
5 |
Correct |
111 ms |
18548 KB |
Output is correct |
6 |
Correct |
105 ms |
18620 KB |
Output is correct |
7 |
Correct |
113 ms |
19832 KB |
Output is correct |
8 |
Correct |
106 ms |
18620 KB |
Output is correct |
9 |
Correct |
106 ms |
18564 KB |
Output is correct |
10 |
Correct |
109 ms |
19128 KB |
Output is correct |
11 |
Correct |
108 ms |
18624 KB |
Output is correct |
12 |
Correct |
119 ms |
19572 KB |
Output is correct |
13 |
Correct |
109 ms |
19076 KB |
Output is correct |
14 |
Correct |
118 ms |
19788 KB |
Output is correct |
15 |
Correct |
107 ms |
18624 KB |
Output is correct |
16 |
Correct |
118 ms |
19076 KB |
Output is correct |
17 |
Correct |
109 ms |
18624 KB |
Output is correct |
18 |
Correct |
108 ms |
18588 KB |
Output is correct |
19 |
Correct |
107 ms |
18620 KB |
Output is correct |
20 |
Correct |
126 ms |
19576 KB |
Output is correct |
21 |
Correct |
109 ms |
18620 KB |
Output is correct |
22 |
Correct |
107 ms |
18880 KB |
Output is correct |
23 |
Correct |
107 ms |
19648 KB |
Output is correct |
24 |
Correct |
111 ms |
18804 KB |
Output is correct |
25 |
Correct |
124 ms |
18872 KB |
Output is correct |
26 |
Correct |
113 ms |
18920 KB |
Output is correct |
27 |
Correct |
106 ms |
18628 KB |
Output is correct |
28 |
Correct |
112 ms |
19132 KB |
Output is correct |
29 |
Correct |
108 ms |
18952 KB |
Output is correct |
30 |
Correct |
109 ms |
18808 KB |
Output is correct |
31 |
Correct |
113 ms |
18728 KB |
Output is correct |
32 |
Correct |
111 ms |
19132 KB |
Output is correct |
33 |
Correct |
110 ms |
18808 KB |
Output is correct |
34 |
Correct |
111 ms |
18664 KB |
Output is correct |
35 |
Correct |
128 ms |
19136 KB |
Output is correct |
36 |
Correct |
111 ms |
19648 KB |
Output is correct |
37 |
Correct |
111 ms |
19824 KB |
Output is correct |
38 |
Correct |
107 ms |
18856 KB |
Output is correct |
39 |
Correct |
108 ms |
19292 KB |
Output is correct |
40 |
Correct |
107 ms |
18112 KB |
Output is correct |
41 |
Correct |
108 ms |
18208 KB |
Output is correct |
42 |
Correct |
107 ms |
17852 KB |
Output is correct |
43 |
Correct |
127 ms |
18020 KB |
Output is correct |
44 |
Correct |
117 ms |
18552 KB |
Output is correct |
45 |
Correct |
114 ms |
18112 KB |
Output is correct |
46 |
Correct |
124 ms |
18112 KB |
Output is correct |
47 |
Correct |
113 ms |
18032 KB |
Output is correct |
48 |
Correct |
118 ms |
18332 KB |
Output is correct |
49 |
Correct |
141 ms |
19136 KB |
Output is correct |
50 |
Correct |
111 ms |
18052 KB |
Output is correct |
51 |
Correct |
113 ms |
18880 KB |
Output is correct |
52 |
Correct |
110 ms |
19132 KB |
Output is correct |
53 |
Correct |
112 ms |
18128 KB |
Output is correct |
54 |
Correct |
113 ms |
19072 KB |
Output is correct |
55 |
Correct |
112 ms |
18160 KB |
Output is correct |
56 |
Correct |
120 ms |
19080 KB |
Output is correct |
57 |
Correct |
111 ms |
18728 KB |
Output is correct |
58 |
Correct |
113 ms |
19112 KB |
Output is correct |
59 |
Correct |
115 ms |
18112 KB |
Output is correct |
60 |
Correct |
128 ms |
18820 KB |
Output is correct |
61 |
Correct |
111 ms |
19084 KB |
Output is correct |
62 |
Correct |
119 ms |
18880 KB |
Output is correct |
63 |
Correct |
111 ms |
18108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
108 ms |
19112 KB |
Output is correct |
2 |
Correct |
107 ms |
18628 KB |
Output is correct |
3 |
Correct |
109 ms |
18576 KB |
Output is correct |
4 |
Correct |
116 ms |
18800 KB |
Output is correct |
5 |
Correct |
111 ms |
18548 KB |
Output is correct |
6 |
Correct |
105 ms |
18620 KB |
Output is correct |
7 |
Correct |
113 ms |
19832 KB |
Output is correct |
8 |
Correct |
106 ms |
18620 KB |
Output is correct |
9 |
Correct |
106 ms |
18564 KB |
Output is correct |
10 |
Correct |
109 ms |
19128 KB |
Output is correct |
11 |
Correct |
108 ms |
18624 KB |
Output is correct |
12 |
Correct |
119 ms |
19572 KB |
Output is correct |
13 |
Correct |
109 ms |
19076 KB |
Output is correct |
14 |
Correct |
118 ms |
19788 KB |
Output is correct |
15 |
Correct |
107 ms |
18624 KB |
Output is correct |
16 |
Correct |
118 ms |
19076 KB |
Output is correct |
17 |
Correct |
109 ms |
18624 KB |
Output is correct |
18 |
Correct |
108 ms |
18588 KB |
Output is correct |
19 |
Correct |
107 ms |
18620 KB |
Output is correct |
20 |
Correct |
126 ms |
19576 KB |
Output is correct |
21 |
Correct |
109 ms |
18620 KB |
Output is correct |
22 |
Correct |
107 ms |
18880 KB |
Output is correct |
23 |
Correct |
107 ms |
19648 KB |
Output is correct |
24 |
Correct |
111 ms |
18804 KB |
Output is correct |
25 |
Correct |
124 ms |
18872 KB |
Output is correct |
26 |
Correct |
113 ms |
18920 KB |
Output is correct |
27 |
Correct |
106 ms |
18628 KB |
Output is correct |
28 |
Correct |
112 ms |
19132 KB |
Output is correct |
29 |
Correct |
108 ms |
18952 KB |
Output is correct |
30 |
Correct |
109 ms |
18808 KB |
Output is correct |
31 |
Correct |
113 ms |
18728 KB |
Output is correct |
32 |
Correct |
111 ms |
19132 KB |
Output is correct |
33 |
Correct |
110 ms |
18808 KB |
Output is correct |
34 |
Correct |
111 ms |
18664 KB |
Output is correct |
35 |
Correct |
128 ms |
19136 KB |
Output is correct |
36 |
Correct |
111 ms |
19648 KB |
Output is correct |
37 |
Correct |
111 ms |
19824 KB |
Output is correct |
38 |
Correct |
107 ms |
18856 KB |
Output is correct |
39 |
Correct |
108 ms |
19292 KB |
Output is correct |
40 |
Correct |
107 ms |
18112 KB |
Output is correct |
41 |
Correct |
108 ms |
18208 KB |
Output is correct |
42 |
Correct |
107 ms |
17852 KB |
Output is correct |
43 |
Correct |
127 ms |
18020 KB |
Output is correct |
44 |
Correct |
117 ms |
18552 KB |
Output is correct |
45 |
Correct |
114 ms |
18112 KB |
Output is correct |
46 |
Correct |
124 ms |
18112 KB |
Output is correct |
47 |
Correct |
113 ms |
18032 KB |
Output is correct |
48 |
Correct |
118 ms |
18332 KB |
Output is correct |
49 |
Correct |
141 ms |
19136 KB |
Output is correct |
50 |
Correct |
111 ms |
18052 KB |
Output is correct |
51 |
Correct |
113 ms |
18880 KB |
Output is correct |
52 |
Correct |
110 ms |
19132 KB |
Output is correct |
53 |
Correct |
112 ms |
18128 KB |
Output is correct |
54 |
Correct |
113 ms |
19072 KB |
Output is correct |
55 |
Correct |
112 ms |
18160 KB |
Output is correct |
56 |
Correct |
120 ms |
19080 KB |
Output is correct |
57 |
Correct |
111 ms |
18728 KB |
Output is correct |
58 |
Correct |
113 ms |
19112 KB |
Output is correct |
59 |
Correct |
115 ms |
18112 KB |
Output is correct |
60 |
Correct |
128 ms |
18820 KB |
Output is correct |
61 |
Correct |
111 ms |
19084 KB |
Output is correct |
62 |
Correct |
119 ms |
18880 KB |
Output is correct |
63 |
Correct |
111 ms |
18108 KB |
Output is correct |
64 |
Correct |
129 ms |
18468 KB |
Output is correct |
65 |
Correct |
124 ms |
18820 KB |
Output is correct |
66 |
Correct |
122 ms |
18720 KB |
Output is correct |
67 |
Correct |
125 ms |
18364 KB |
Output is correct |
68 |
Correct |
130 ms |
18116 KB |
Output is correct |
69 |
Correct |
121 ms |
18704 KB |
Output is correct |
70 |
Correct |
124 ms |
18108 KB |
Output is correct |
71 |
Correct |
122 ms |
18116 KB |
Output is correct |
72 |
Correct |
120 ms |
19144 KB |
Output is correct |
73 |
Correct |
122 ms |
19108 KB |
Output is correct |
74 |
Correct |
121 ms |
18548 KB |
Output is correct |
75 |
Correct |
126 ms |
18108 KB |
Output is correct |
76 |
Correct |
124 ms |
18112 KB |
Output is correct |
77 |
Correct |
126 ms |
18780 KB |
Output is correct |
78 |
Correct |
125 ms |
18112 KB |
Output is correct |
79 |
Correct |
130 ms |
18280 KB |
Output is correct |
80 |
Correct |
125 ms |
19064 KB |
Output is correct |
81 |
Correct |
121 ms |
18368 KB |
Output is correct |
82 |
Correct |
122 ms |
18052 KB |
Output is correct |
83 |
Correct |
130 ms |
18288 KB |
Output is correct |
84 |
Correct |
122 ms |
18556 KB |
Output is correct |