#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include "temp.cpp"
#include <cstdio>
using namespace std;
#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif
#define sz(x) (int((x).size()))
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) (x).clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt(x) __builtin_popcount(x)
#define pb push_back
#define popf pop_front
#define popb pop_back
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(deque <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'
// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};
// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
fastIO();
if (str != "") {
freopen((str + ".in").c_str(), "r", stdin);
freopen((str + ".out").c_str(), "w", stdout);
}
}
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const long long mod = 998244353;
int n;
vector<string> vec[20];
long long add(long long a, long long b) {
a += b;
if(a > mod) {
a -= mod;
}
return a;
}
long long mult(long long a, long long b) {
return (a * b) % mod;
}
long long sub(long long a, long long b) {
return (a - b + 2 * mod) % mod;
}
long long dp[62][62][62];
unordered_map<char, int> mp;
long long q[62][62];
int m = 61;
long long answ = 0;
void solve(int len) {
memset(dp, 0, sizeof(dp));
memset(q, 0, sizeof(q));
for(auto i: vec[len]) {
int first = mp[i[0]];
int last = mp[i[len - 1]];
q[first][last]++;
}
for(int start = 0; start <= m; start++) {
for(int i = 0; i <= m; i++) {
for(int j = 0; j <= m; j++) {
for(int k = 0; k <= m; k++) {
long long get = mult(q[start][i], mult(q[start][j], q[start][k]));
dp[i][j][k] = add(dp[i][j][k], get);
}
}
}
}
for(int i = 0; i <= m; i++) {
for(int j = 0; j <= m; j++) {
for(int k = 0; k <= m; k++) {
if(!dp[i][j][k]) continue;
for(int e = 0; e <= m; e++) {
if(!dp[i][j][e]) continue;
long long pt = mult(dp[i][j][e], dp[i][j][k]);
pt = mult(pt, dp[j][e][k]);
pt = mult(pt, dp[i][e][k]);
answ = add(answ, pt);
}
}
}
}
}
void solve_() {
cin >> n;
for(int i = 1; i <= n; i++) {
string s; cin >> s;
vec[sz(s)].push_back(s);
reverse(all(s));
vec[sz(s)].push_back(s);
}
mp.reserve(1000);
for(char i = 'a'; i <= 'z'; i++) {
mp[i] = i - 'a';
}
for(char i = 'A'; i <= 'Z'; i++) {
mp[i] = 26 + (i - 'A');
}
for(char i = '0'; i <= '9'; i++) {
mp[i] = 52 + (i - '0');
}
for(int i = 3; i <= 10; i++) {
sort(all(vec[i]));
uniq(vec[i]);
solve(i);
}
cout << answ << '\n';
}
int main() {
setIO();
auto solve = [&](int test_case)-> void {
while(test_case--) {
solve_();
}
};
int test_cases = 1;
// cin >> test_cases;
solve(test_cases);
return 0;
}
Compilation message
cubeword.cpp: In function 'void setIO(std::string)':
cubeword.cpp:66:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
66 | freopen((str + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cubeword.cpp:67:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
67 | freopen((str + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
578 ms |
8824 KB |
Output is correct |
2 |
Correct |
699 ms |
8864 KB |
Output is correct |
3 |
Correct |
602 ms |
8780 KB |
Output is correct |
4 |
Correct |
585 ms |
8888 KB |
Output is correct |
5 |
Correct |
549 ms |
8872 KB |
Output is correct |
6 |
Correct |
624 ms |
9024 KB |
Output is correct |
7 |
Correct |
661 ms |
8848 KB |
Output is correct |
8 |
Correct |
599 ms |
8780 KB |
Output is correct |
9 |
Correct |
659 ms |
8852 KB |
Output is correct |
10 |
Correct |
608 ms |
8888 KB |
Output is correct |
11 |
Correct |
685 ms |
8964 KB |
Output is correct |
12 |
Correct |
622 ms |
8888 KB |
Output is correct |
13 |
Correct |
587 ms |
8892 KB |
Output is correct |
14 |
Correct |
601 ms |
8736 KB |
Output is correct |
15 |
Correct |
579 ms |
8820 KB |
Output is correct |
16 |
Correct |
578 ms |
8832 KB |
Output is correct |
17 |
Correct |
574 ms |
8984 KB |
Output is correct |
18 |
Correct |
552 ms |
8736 KB |
Output is correct |
19 |
Correct |
560 ms |
8836 KB |
Output is correct |
20 |
Correct |
561 ms |
8804 KB |
Output is correct |
21 |
Correct |
566 ms |
8876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
578 ms |
8824 KB |
Output is correct |
2 |
Correct |
699 ms |
8864 KB |
Output is correct |
3 |
Correct |
602 ms |
8780 KB |
Output is correct |
4 |
Correct |
585 ms |
8888 KB |
Output is correct |
5 |
Correct |
549 ms |
8872 KB |
Output is correct |
6 |
Correct |
624 ms |
9024 KB |
Output is correct |
7 |
Correct |
661 ms |
8848 KB |
Output is correct |
8 |
Correct |
599 ms |
8780 KB |
Output is correct |
9 |
Correct |
659 ms |
8852 KB |
Output is correct |
10 |
Correct |
608 ms |
8888 KB |
Output is correct |
11 |
Correct |
685 ms |
8964 KB |
Output is correct |
12 |
Correct |
622 ms |
8888 KB |
Output is correct |
13 |
Correct |
587 ms |
8892 KB |
Output is correct |
14 |
Correct |
601 ms |
8736 KB |
Output is correct |
15 |
Correct |
579 ms |
8820 KB |
Output is correct |
16 |
Correct |
578 ms |
8832 KB |
Output is correct |
17 |
Correct |
574 ms |
8984 KB |
Output is correct |
18 |
Correct |
552 ms |
8736 KB |
Output is correct |
19 |
Correct |
560 ms |
8836 KB |
Output is correct |
20 |
Correct |
561 ms |
8804 KB |
Output is correct |
21 |
Correct |
566 ms |
8876 KB |
Output is correct |
22 |
Correct |
566 ms |
8536 KB |
Output is correct |
23 |
Correct |
556 ms |
8632 KB |
Output is correct |
24 |
Correct |
553 ms |
8724 KB |
Output is correct |
25 |
Correct |
618 ms |
8832 KB |
Output is correct |
26 |
Correct |
582 ms |
8696 KB |
Output is correct |
27 |
Correct |
581 ms |
8864 KB |
Output is correct |
28 |
Correct |
565 ms |
8628 KB |
Output is correct |
29 |
Correct |
573 ms |
8636 KB |
Output is correct |
30 |
Correct |
562 ms |
8716 KB |
Output is correct |
31 |
Correct |
568 ms |
8632 KB |
Output is correct |
32 |
Correct |
586 ms |
8624 KB |
Output is correct |
33 |
Correct |
569 ms |
8640 KB |
Output is correct |
34 |
Correct |
550 ms |
8728 KB |
Output is correct |
35 |
Correct |
551 ms |
8860 KB |
Output is correct |
36 |
Correct |
564 ms |
8736 KB |
Output is correct |
37 |
Correct |
579 ms |
8632 KB |
Output is correct |
38 |
Correct |
554 ms |
8784 KB |
Output is correct |
39 |
Correct |
566 ms |
8768 KB |
Output is correct |
40 |
Correct |
592 ms |
8696 KB |
Output is correct |
41 |
Correct |
546 ms |
8924 KB |
Output is correct |
42 |
Correct |
577 ms |
8648 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
578 ms |
8824 KB |
Output is correct |
2 |
Correct |
699 ms |
8864 KB |
Output is correct |
3 |
Correct |
602 ms |
8780 KB |
Output is correct |
4 |
Correct |
585 ms |
8888 KB |
Output is correct |
5 |
Correct |
549 ms |
8872 KB |
Output is correct |
6 |
Correct |
624 ms |
9024 KB |
Output is correct |
7 |
Correct |
661 ms |
8848 KB |
Output is correct |
8 |
Correct |
599 ms |
8780 KB |
Output is correct |
9 |
Correct |
659 ms |
8852 KB |
Output is correct |
10 |
Correct |
608 ms |
8888 KB |
Output is correct |
11 |
Correct |
685 ms |
8964 KB |
Output is correct |
12 |
Correct |
622 ms |
8888 KB |
Output is correct |
13 |
Correct |
587 ms |
8892 KB |
Output is correct |
14 |
Correct |
601 ms |
8736 KB |
Output is correct |
15 |
Correct |
579 ms |
8820 KB |
Output is correct |
16 |
Correct |
578 ms |
8832 KB |
Output is correct |
17 |
Correct |
574 ms |
8984 KB |
Output is correct |
18 |
Correct |
552 ms |
8736 KB |
Output is correct |
19 |
Correct |
560 ms |
8836 KB |
Output is correct |
20 |
Correct |
561 ms |
8804 KB |
Output is correct |
21 |
Correct |
566 ms |
8876 KB |
Output is correct |
22 |
Correct |
566 ms |
8536 KB |
Output is correct |
23 |
Correct |
556 ms |
8632 KB |
Output is correct |
24 |
Correct |
553 ms |
8724 KB |
Output is correct |
25 |
Correct |
618 ms |
8832 KB |
Output is correct |
26 |
Correct |
582 ms |
8696 KB |
Output is correct |
27 |
Correct |
581 ms |
8864 KB |
Output is correct |
28 |
Correct |
565 ms |
8628 KB |
Output is correct |
29 |
Correct |
573 ms |
8636 KB |
Output is correct |
30 |
Correct |
562 ms |
8716 KB |
Output is correct |
31 |
Correct |
568 ms |
8632 KB |
Output is correct |
32 |
Correct |
586 ms |
8624 KB |
Output is correct |
33 |
Correct |
569 ms |
8640 KB |
Output is correct |
34 |
Correct |
550 ms |
8728 KB |
Output is correct |
35 |
Correct |
551 ms |
8860 KB |
Output is correct |
36 |
Correct |
564 ms |
8736 KB |
Output is correct |
37 |
Correct |
579 ms |
8632 KB |
Output is correct |
38 |
Correct |
554 ms |
8784 KB |
Output is correct |
39 |
Correct |
566 ms |
8768 KB |
Output is correct |
40 |
Correct |
592 ms |
8696 KB |
Output is correct |
41 |
Correct |
546 ms |
8924 KB |
Output is correct |
42 |
Correct |
577 ms |
8648 KB |
Output is correct |
43 |
Correct |
630 ms |
8636 KB |
Output is correct |
44 |
Correct |
622 ms |
8636 KB |
Output is correct |
45 |
Correct |
621 ms |
8632 KB |
Output is correct |
46 |
Correct |
617 ms |
8636 KB |
Output is correct |
47 |
Correct |
646 ms |
8684 KB |
Output is correct |
48 |
Correct |
618 ms |
9016 KB |
Output is correct |
49 |
Correct |
632 ms |
9016 KB |
Output is correct |
50 |
Correct |
633 ms |
9024 KB |
Output is correct |
51 |
Correct |
637 ms |
8884 KB |
Output is correct |
52 |
Correct |
605 ms |
8588 KB |
Output is correct |
53 |
Correct |
634 ms |
8576 KB |
Output is correct |
54 |
Correct |
623 ms |
8900 KB |
Output is correct |
55 |
Correct |
611 ms |
9016 KB |
Output is correct |
56 |
Correct |
610 ms |
8640 KB |
Output is correct |
57 |
Correct |
628 ms |
8892 KB |
Output is correct |
58 |
Correct |
616 ms |
9016 KB |
Output is correct |
59 |
Correct |
651 ms |
8900 KB |
Output is correct |
60 |
Correct |
660 ms |
8936 KB |
Output is correct |
61 |
Correct |
637 ms |
8632 KB |
Output is correct |
62 |
Correct |
841 ms |
8908 KB |
Output is correct |
63 |
Correct |
657 ms |
8892 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
578 ms |
8824 KB |
Output is correct |
2 |
Correct |
699 ms |
8864 KB |
Output is correct |
3 |
Correct |
602 ms |
8780 KB |
Output is correct |
4 |
Correct |
585 ms |
8888 KB |
Output is correct |
5 |
Correct |
549 ms |
8872 KB |
Output is correct |
6 |
Correct |
624 ms |
9024 KB |
Output is correct |
7 |
Correct |
661 ms |
8848 KB |
Output is correct |
8 |
Correct |
599 ms |
8780 KB |
Output is correct |
9 |
Correct |
659 ms |
8852 KB |
Output is correct |
10 |
Correct |
608 ms |
8888 KB |
Output is correct |
11 |
Correct |
685 ms |
8964 KB |
Output is correct |
12 |
Correct |
622 ms |
8888 KB |
Output is correct |
13 |
Correct |
587 ms |
8892 KB |
Output is correct |
14 |
Correct |
601 ms |
8736 KB |
Output is correct |
15 |
Correct |
579 ms |
8820 KB |
Output is correct |
16 |
Correct |
578 ms |
8832 KB |
Output is correct |
17 |
Correct |
574 ms |
8984 KB |
Output is correct |
18 |
Correct |
552 ms |
8736 KB |
Output is correct |
19 |
Correct |
560 ms |
8836 KB |
Output is correct |
20 |
Correct |
561 ms |
8804 KB |
Output is correct |
21 |
Correct |
566 ms |
8876 KB |
Output is correct |
22 |
Correct |
566 ms |
8536 KB |
Output is correct |
23 |
Correct |
556 ms |
8632 KB |
Output is correct |
24 |
Correct |
553 ms |
8724 KB |
Output is correct |
25 |
Correct |
618 ms |
8832 KB |
Output is correct |
26 |
Correct |
582 ms |
8696 KB |
Output is correct |
27 |
Correct |
581 ms |
8864 KB |
Output is correct |
28 |
Correct |
565 ms |
8628 KB |
Output is correct |
29 |
Correct |
573 ms |
8636 KB |
Output is correct |
30 |
Correct |
562 ms |
8716 KB |
Output is correct |
31 |
Correct |
568 ms |
8632 KB |
Output is correct |
32 |
Correct |
586 ms |
8624 KB |
Output is correct |
33 |
Correct |
569 ms |
8640 KB |
Output is correct |
34 |
Correct |
550 ms |
8728 KB |
Output is correct |
35 |
Correct |
551 ms |
8860 KB |
Output is correct |
36 |
Correct |
564 ms |
8736 KB |
Output is correct |
37 |
Correct |
579 ms |
8632 KB |
Output is correct |
38 |
Correct |
554 ms |
8784 KB |
Output is correct |
39 |
Correct |
566 ms |
8768 KB |
Output is correct |
40 |
Correct |
592 ms |
8696 KB |
Output is correct |
41 |
Correct |
546 ms |
8924 KB |
Output is correct |
42 |
Correct |
577 ms |
8648 KB |
Output is correct |
43 |
Correct |
630 ms |
8636 KB |
Output is correct |
44 |
Correct |
622 ms |
8636 KB |
Output is correct |
45 |
Correct |
621 ms |
8632 KB |
Output is correct |
46 |
Correct |
617 ms |
8636 KB |
Output is correct |
47 |
Correct |
646 ms |
8684 KB |
Output is correct |
48 |
Correct |
618 ms |
9016 KB |
Output is correct |
49 |
Correct |
632 ms |
9016 KB |
Output is correct |
50 |
Correct |
633 ms |
9024 KB |
Output is correct |
51 |
Correct |
637 ms |
8884 KB |
Output is correct |
52 |
Correct |
605 ms |
8588 KB |
Output is correct |
53 |
Correct |
634 ms |
8576 KB |
Output is correct |
54 |
Correct |
623 ms |
8900 KB |
Output is correct |
55 |
Correct |
611 ms |
9016 KB |
Output is correct |
56 |
Correct |
610 ms |
8640 KB |
Output is correct |
57 |
Correct |
628 ms |
8892 KB |
Output is correct |
58 |
Correct |
616 ms |
9016 KB |
Output is correct |
59 |
Correct |
651 ms |
8900 KB |
Output is correct |
60 |
Correct |
660 ms |
8936 KB |
Output is correct |
61 |
Correct |
637 ms |
8632 KB |
Output is correct |
62 |
Correct |
841 ms |
8908 KB |
Output is correct |
63 |
Correct |
657 ms |
8892 KB |
Output is correct |
64 |
Execution timed out |
1141 ms |
8880 KB |
Time limit exceeded |
65 |
Halted |
0 ms |
0 KB |
- |