#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=1e6 + 5 ;
const int inf = 1e18 + 7;
const int mod = 998244353;
int g[11][7][7];
vector<int>op[8];
int ans = 0;
void dfs(int sz, int ind, vector<int>v){
if(7 < ind){
int val = 1;
for(int i = 0;i<7;i++){
for(auto to:op[i]){
val *= g[sz][v[i]][v[to]];
val %= mod;
}
}
ans += val;
ans %= mod;
return;
}
for(int i = 0;i<6;i++){
v[ind] = i;
dfs(sz,ind+1,v);
}
}
void solve(){
op[0] = {1,2,3};
op[1] = {4,7};
op[2] = {5,7};
op[3] = {4,5};
op[4] = {6};
op[5] = {6};
op[6] = {7};
int n,m,k;
cin >> n;
map<string,int>mp;
for(int i = 1;i<=n;i++){
string a;
cin >> a;
if(mp[a] == 0){
g[(int)a.size()][a[0] - 'a'][a[a.size()-1] - 'a'] += 1;
mp[a] += 1;
}
reverse(a.begin(),a.end());
if(mp[a] == 0){
g[(int)a.size()][a[0] - 'a'][a[a.size()-1] - 'a'] += 1;
mp[a] += 1;
}
}
for(int i = 3;i<=10;i++){
vector<int>v(8);
dfs(i,0,v);
}
cout<<ans<<"\n";
}
/*
*/
signed main()
{
ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
int tt=1;//cin>>tt>>n;
while(tt--)solve();
}
Compilation message
cubeword.cpp: In function 'void solve()':
cubeword.cpp:51:8: warning: unused variable 'm' [-Wunused-variable]
51 | int n,m,k;
| ^
cubeword.cpp:51:10: warning: unused variable 'k' [-Wunused-variable]
51 | int n,m,k;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1053 ms |
14932 KB |
Output is correct |
2 |
Correct |
1010 ms |
14920 KB |
Output is correct |
3 |
Correct |
1008 ms |
14924 KB |
Output is correct |
4 |
Correct |
1014 ms |
14904 KB |
Output is correct |
5 |
Correct |
1031 ms |
14924 KB |
Output is correct |
6 |
Correct |
1000 ms |
14676 KB |
Output is correct |
7 |
Correct |
1037 ms |
14932 KB |
Output is correct |
8 |
Correct |
1012 ms |
14932 KB |
Output is correct |
9 |
Correct |
1012 ms |
14924 KB |
Output is correct |
10 |
Correct |
1016 ms |
14936 KB |
Output is correct |
11 |
Correct |
1045 ms |
14924 KB |
Output is correct |
12 |
Correct |
1016 ms |
14904 KB |
Output is correct |
13 |
Correct |
1020 ms |
14932 KB |
Output is correct |
14 |
Correct |
1047 ms |
14928 KB |
Output is correct |
15 |
Correct |
1020 ms |
14936 KB |
Output is correct |
16 |
Correct |
1024 ms |
14672 KB |
Output is correct |
17 |
Correct |
1036 ms |
15788 KB |
Output is correct |
18 |
Correct |
1034 ms |
15772 KB |
Output is correct |
19 |
Correct |
1014 ms |
15864 KB |
Output is correct |
20 |
Correct |
1085 ms |
15836 KB |
Output is correct |
21 |
Correct |
1010 ms |
15768 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1053 ms |
14932 KB |
Output is correct |
2 |
Correct |
1010 ms |
14920 KB |
Output is correct |
3 |
Correct |
1008 ms |
14924 KB |
Output is correct |
4 |
Correct |
1014 ms |
14904 KB |
Output is correct |
5 |
Correct |
1031 ms |
14924 KB |
Output is correct |
6 |
Correct |
1000 ms |
14676 KB |
Output is correct |
7 |
Correct |
1037 ms |
14932 KB |
Output is correct |
8 |
Correct |
1012 ms |
14932 KB |
Output is correct |
9 |
Correct |
1012 ms |
14924 KB |
Output is correct |
10 |
Correct |
1016 ms |
14936 KB |
Output is correct |
11 |
Correct |
1045 ms |
14924 KB |
Output is correct |
12 |
Correct |
1016 ms |
14904 KB |
Output is correct |
13 |
Correct |
1020 ms |
14932 KB |
Output is correct |
14 |
Correct |
1047 ms |
14928 KB |
Output is correct |
15 |
Correct |
1020 ms |
14936 KB |
Output is correct |
16 |
Correct |
1024 ms |
14672 KB |
Output is correct |
17 |
Correct |
1036 ms |
15788 KB |
Output is correct |
18 |
Correct |
1034 ms |
15772 KB |
Output is correct |
19 |
Correct |
1014 ms |
15864 KB |
Output is correct |
20 |
Correct |
1085 ms |
15836 KB |
Output is correct |
21 |
Correct |
1010 ms |
15768 KB |
Output is correct |
22 |
Runtime error |
1027 ms |
31980 KB |
Execution killed with signal 11 |
23 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1053 ms |
14932 KB |
Output is correct |
2 |
Correct |
1010 ms |
14920 KB |
Output is correct |
3 |
Correct |
1008 ms |
14924 KB |
Output is correct |
4 |
Correct |
1014 ms |
14904 KB |
Output is correct |
5 |
Correct |
1031 ms |
14924 KB |
Output is correct |
6 |
Correct |
1000 ms |
14676 KB |
Output is correct |
7 |
Correct |
1037 ms |
14932 KB |
Output is correct |
8 |
Correct |
1012 ms |
14932 KB |
Output is correct |
9 |
Correct |
1012 ms |
14924 KB |
Output is correct |
10 |
Correct |
1016 ms |
14936 KB |
Output is correct |
11 |
Correct |
1045 ms |
14924 KB |
Output is correct |
12 |
Correct |
1016 ms |
14904 KB |
Output is correct |
13 |
Correct |
1020 ms |
14932 KB |
Output is correct |
14 |
Correct |
1047 ms |
14928 KB |
Output is correct |
15 |
Correct |
1020 ms |
14936 KB |
Output is correct |
16 |
Correct |
1024 ms |
14672 KB |
Output is correct |
17 |
Correct |
1036 ms |
15788 KB |
Output is correct |
18 |
Correct |
1034 ms |
15772 KB |
Output is correct |
19 |
Correct |
1014 ms |
15864 KB |
Output is correct |
20 |
Correct |
1085 ms |
15836 KB |
Output is correct |
21 |
Correct |
1010 ms |
15768 KB |
Output is correct |
22 |
Runtime error |
1027 ms |
31980 KB |
Execution killed with signal 11 |
23 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1053 ms |
14932 KB |
Output is correct |
2 |
Correct |
1010 ms |
14920 KB |
Output is correct |
3 |
Correct |
1008 ms |
14924 KB |
Output is correct |
4 |
Correct |
1014 ms |
14904 KB |
Output is correct |
5 |
Correct |
1031 ms |
14924 KB |
Output is correct |
6 |
Correct |
1000 ms |
14676 KB |
Output is correct |
7 |
Correct |
1037 ms |
14932 KB |
Output is correct |
8 |
Correct |
1012 ms |
14932 KB |
Output is correct |
9 |
Correct |
1012 ms |
14924 KB |
Output is correct |
10 |
Correct |
1016 ms |
14936 KB |
Output is correct |
11 |
Correct |
1045 ms |
14924 KB |
Output is correct |
12 |
Correct |
1016 ms |
14904 KB |
Output is correct |
13 |
Correct |
1020 ms |
14932 KB |
Output is correct |
14 |
Correct |
1047 ms |
14928 KB |
Output is correct |
15 |
Correct |
1020 ms |
14936 KB |
Output is correct |
16 |
Correct |
1024 ms |
14672 KB |
Output is correct |
17 |
Correct |
1036 ms |
15788 KB |
Output is correct |
18 |
Correct |
1034 ms |
15772 KB |
Output is correct |
19 |
Correct |
1014 ms |
15864 KB |
Output is correct |
20 |
Correct |
1085 ms |
15836 KB |
Output is correct |
21 |
Correct |
1010 ms |
15768 KB |
Output is correct |
22 |
Runtime error |
1027 ms |
31980 KB |
Execution killed with signal 11 |
23 |
Halted |
0 ms |
0 KB |
- |