oj.uz

Submission #953620

# Submission time Handle Problem Language Result Execution time Memory
953620 2024-03-26T10:44:03 Z LucaIlie Cubeword (CEOI19_cubeword) C++17
100 / 100
 1070 ms 8368 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX_ID = 62;
const int MIN_LEN = 3;
const int MAX_LEN = 10;
const int MOD = 998244353;
vector<string> s[MAX_LEN + 1];
unordered_map<char, int> id;
int m;
int coef[MAX_ID][MAX_ID], prod[MAX_ID][MAX_ID][MAX_ID];

int solve() {
    int ans = 0;

    for ( int a = 0; a < m; a++ ) {
        for ( int b = 0; b < m; b++ ) {
            for ( int c = 0; c < m; c++ ) {
                prod[a][b][c] = 0;
                for ( int i = 0; i < m; i++ )
                    prod[a][b][c] = (prod[a][b][c] + (long long)coef[a][i] * coef[b][i] % MOD * coef[c][i]) % MOD;
            }
        }
    }


    for ( int a = 0; a < m; a++ ) {
        for ( int b = 0; b < m; b++ ) {
            for ( int c = 0; c < m; c++ ) {
                for ( int d = 0; d < m; d++ )
                    ans = (ans + prod[a][b][c] * (long long)prod[a][b][d] % MOD * prod[a][c][d] % MOD * prod[b][c][d]) % MOD;
            }
        }
    }

    return ans;
}

int main() {
    cin.tie( NULL );
    ios_base::sync_with_stdio( false );

    int n;

    cin >> n;
    for ( int i = 0; i < n; i++ ) {
        string t;
        cin >> t;
        s[t.size()].push_back( t );
        string w = t;
        reverse( w.begin(), w.end() );
        if ( w != t )
            s[t.size()].push_back( w );
        for ( int i = 0; i < t.size(); i++ )
            id[t[i]] = 1;
    }

    m = 0;
    for ( auto p: id )
        id[p.first] = m++;

    int ans = 0;
    for ( int l = MIN_LEN; l <= MAX_LEN; l++ ) {
        if ( s[l].size() == 0 )
            continue;

        for ( int i = 0; i < m; i++ ) {
            for ( int j = 0; j < m; j++ )
                coef[i][j] = 0;
        }
        sort( s[l].begin(), s[l].end() );
        for ( int i = 0; i < s[l].size(); i++ ) {
            if ( i == 0 || s[l][i] != s[l][i - 1])
                coef[id[s[l][i][0]]][id[s[l][i].back()]]++;
        }

        ans = (ans + solve()) % MOD;
    }

    cout << ans;

    return 0;
}

Compilation message

cubeword.cpp: In function 'int main()':
cubeword.cpp:55:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for ( int i = 0; i < t.size(); i++ )
      |                          ~~^~~~~~~~~~
cubeword.cpp:73:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         for ( int i = 0; i < s[l].size(); i++ ) {
      |                          ~~^~~~~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 7408 KB Output is correct
2 Correct 48 ms 8368 KB Output is correct
3 Correct 48 ms 7208 KB Output is correct
4 Correct 47 ms 7504 KB Output is correct
5 Correct 48 ms 7524 KB Output is correct
6 Correct 47 ms 7456 KB Output is correct
7 Correct 49 ms 7432 KB Output is correct
8 Correct 50 ms 7356 KB Output is correct
9 Correct 48 ms 7392 KB Output is correct
10 Correct 46 ms 7468 KB Output is correct
11 Correct 51 ms 7568 KB Output is correct
12 Correct 47 ms 7344 KB Output is correct
13 Correct 47 ms 7348 KB Output is correct
14 Correct 59 ms 7136 KB Output is correct
15 Correct 53 ms 7432 KB Output is correct
16 Correct 52 ms 7308 KB Output is correct
17 Correct 47 ms 7416 KB Output is correct
18 Correct 47 ms 7324 KB Output is correct
19 Correct 46 ms 7412 KB Output is correct
20 Correct 50 ms 7340 KB Output is correct
21 Correct 47 ms 7264 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 7408 KB Output is correct
2 Correct 48 ms 8368 KB Output is correct
3 Correct 48 ms 7208 KB Output is correct
4 Correct 47 ms 7504 KB Output is correct
5 Correct 48 ms 7524 KB Output is correct
6 Correct 47 ms 7456 KB Output is correct
7 Correct 49 ms 7432 KB Output is correct
8 Correct 50 ms 7356 KB Output is correct
9 Correct 48 ms 7392 KB Output is correct
10 Correct 46 ms 7468 KB Output is correct
11 Correct 51 ms 7568 KB Output is correct
12 Correct 47 ms 7344 KB Output is correct
13 Correct 47 ms 7348 KB Output is correct
14 Correct 59 ms 7136 KB Output is correct
15 Correct 53 ms 7432 KB Output is correct
16 Correct 52 ms 7308 KB Output is correct
17 Correct 47 ms 7416 KB Output is correct
18 Correct 47 ms 7324 KB Output is correct
19 Correct 46 ms 7412 KB Output is correct
20 Correct 50 ms 7340 KB Output is correct
21 Correct 47 ms 7264 KB Output is correct
22 Correct 56 ms 6880 KB Output is correct
23 Correct 55 ms 7016 KB Output is correct
24 Correct 50 ms 7180 KB Output is correct
25 Correct 63 ms 7216 KB Output is correct
26 Correct 49 ms 7060 KB Output is correct
27 Correct 49 ms 7208 KB Output is correct
28 Correct 49 ms 6952 KB Output is correct
29 Correct 49 ms 7004 KB Output is correct
30 Correct 53 ms 6936 KB Output is correct
31 Correct 57 ms 7268 KB Output is correct
32 Correct 50 ms 7000 KB Output is correct
33 Correct 49 ms 6996 KB Output is correct
34 Correct 50 ms 7092 KB Output is correct
35 Correct 49 ms 6964 KB Output is correct
36 Correct 49 ms 7064 KB Output is correct
37 Correct 50 ms 7020 KB Output is correct
38 Correct 50 ms 6920 KB Output is correct
39 Correct 49 ms 7344 KB Output is correct
40 Correct 49 ms 7024 KB Output is correct
41 Correct 50 ms 7076 KB Output is correct
42 Correct 49 ms 6864 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 7408 KB Output is correct
2 Correct 48 ms 8368 KB Output is correct
3 Correct 48 ms 7208 KB Output is correct
4 Correct 47 ms 7504 KB Output is correct
5 Correct 48 ms 7524 KB Output is correct
6 Correct 47 ms 7456 KB Output is correct
7 Correct 49 ms 7432 KB Output is correct
8 Correct 50 ms 7356 KB Output is correct
9 Correct 48 ms 7392 KB Output is correct
10 Correct 46 ms 7468 KB Output is correct
11 Correct 51 ms 7568 KB Output is correct
12 Correct 47 ms 7344 KB Output is correct
13 Correct 47 ms 7348 KB Output is correct
14 Correct 59 ms 7136 KB Output is correct
15 Correct 53 ms 7432 KB Output is correct
16 Correct 52 ms 7308 KB Output is correct
17 Correct 47 ms 7416 KB Output is correct
18 Correct 47 ms 7324 KB Output is correct
19 Correct 46 ms 7412 KB Output is correct
20 Correct 50 ms 7340 KB Output is correct
21 Correct 47 ms 7264 KB Output is correct
22 Correct 56 ms 6880 KB Output is correct
23 Correct 55 ms 7016 KB Output is correct
24 Correct 50 ms 7180 KB Output is correct
25 Correct 63 ms 7216 KB Output is correct
26 Correct 49 ms 7060 KB Output is correct
27 Correct 49 ms 7208 KB Output is correct
28 Correct 49 ms 6952 KB Output is correct
29 Correct 49 ms 7004 KB Output is correct
30 Correct 53 ms 6936 KB Output is correct
31 Correct 57 ms 7268 KB Output is correct
32 Correct 50 ms 7000 KB Output is correct
33 Correct 49 ms 6996 KB Output is correct
34 Correct 50 ms 7092 KB Output is correct
35 Correct 49 ms 6964 KB Output is correct
36 Correct 49 ms 7064 KB Output is correct
37 Correct 50 ms 7020 KB Output is correct
38 Correct 50 ms 6920 KB Output is correct
39 Correct 49 ms 7344 KB Output is correct
40 Correct 49 ms 7024 KB Output is correct
41 Correct 50 ms 7076 KB Output is correct
42 Correct 49 ms 6864 KB Output is correct
43 Correct 114 ms 7196 KB Output is correct
44 Correct 113 ms 7192 KB Output is correct
45 Correct 117 ms 7268 KB Output is correct
46 Correct 116 ms 7192 KB Output is correct
47 Correct 114 ms 7040 KB Output is correct
48 Correct 115 ms 7540 KB Output is correct
49 Correct 120 ms 7092 KB Output is correct
50 Correct 113 ms 7592 KB Output is correct
51 Correct 115 ms 7520 KB Output is correct
52 Correct 114 ms 7184 KB Output is correct
53 Correct 117 ms 7044 KB Output is correct
54 Correct 115 ms 7396 KB Output is correct
55 Correct 114 ms 7180 KB Output is correct
56 Correct 115 ms 7268 KB Output is correct
57 Correct 114 ms 7312 KB Output is correct
58 Correct 114 ms 7652 KB Output is correct
59 Correct 114 ms 7516 KB Output is correct
60 Correct 114 ms 7472 KB Output is correct
61 Correct 114 ms 7276 KB Output is correct
62 Correct 126 ms 7532 KB Output is correct
63 Correct 115 ms 7512 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 7408 KB Output is correct
2 Correct 48 ms 8368 KB Output is correct
3 Correct 48 ms 7208 KB Output is correct
4 Correct 47 ms 7504 KB Output is correct
5 Correct 48 ms 7524 KB Output is correct
6 Correct 47 ms 7456 KB Output is correct
7 Correct 49 ms 7432 KB Output is correct
8 Correct 50 ms 7356 KB Output is correct
9 Correct 48 ms 7392 KB Output is correct
10 Correct 46 ms 7468 KB Output is correct
11 Correct 51 ms 7568 KB Output is correct
12 Correct 47 ms 7344 KB Output is correct
13 Correct 47 ms 7348 KB Output is correct
14 Correct 59 ms 7136 KB Output is correct
15 Correct 53 ms 7432 KB Output is correct
16 Correct 52 ms 7308 KB Output is correct
17 Correct 47 ms 7416 KB Output is correct
18 Correct 47 ms 7324 KB Output is correct
19 Correct 46 ms 7412 KB Output is correct
20 Correct 50 ms 7340 KB Output is correct
21 Correct 47 ms 7264 KB Output is correct
22 Correct 56 ms 6880 KB Output is correct
23 Correct 55 ms 7016 KB Output is correct
24 Correct 50 ms 7180 KB Output is correct
25 Correct 63 ms 7216 KB Output is correct
26 Correct 49 ms 7060 KB Output is correct
27 Correct 49 ms 7208 KB Output is correct
28 Correct 49 ms 6952 KB Output is correct
29 Correct 49 ms 7004 KB Output is correct
30 Correct 53 ms 6936 KB Output is correct
31 Correct 57 ms 7268 KB Output is correct
32 Correct 50 ms 7000 KB Output is correct
33 Correct 49 ms 6996 KB Output is correct
34 Correct 50 ms 7092 KB Output is correct
35 Correct 49 ms 6964 KB Output is correct
36 Correct 49 ms 7064 KB Output is correct
37 Correct 50 ms 7020 KB Output is correct
38 Correct 50 ms 6920 KB Output is correct
39 Correct 49 ms 7344 KB Output is correct
40 Correct 49 ms 7024 KB Output is correct
41 Correct 50 ms 7076 KB Output is correct
42 Correct 49 ms 6864 KB Output is correct
43 Correct 114 ms 7196 KB Output is correct
44 Correct 113 ms 7192 KB Output is correct
45 Correct 117 ms 7268 KB Output is correct
46 Correct 116 ms 7192 KB Output is correct
47 Correct 114 ms 7040 KB Output is correct
48 Correct 115 ms 7540 KB Output is correct
49 Correct 120 ms 7092 KB Output is correct
50 Correct 113 ms 7592 KB Output is correct
51 Correct 115 ms 7520 KB Output is correct
52 Correct 114 ms 7184 KB Output is correct
53 Correct 117 ms 7044 KB Output is correct
54 Correct 115 ms 7396 KB Output is correct
55 Correct 114 ms 7180 KB Output is correct
56 Correct 115 ms 7268 KB Output is correct
57 Correct 114 ms 7312 KB Output is correct
58 Correct 114 ms 7652 KB Output is correct
59 Correct 114 ms 7516 KB Output is correct
60 Correct 114 ms 7472 KB Output is correct
61 Correct 114 ms 7276 KB Output is correct
62 Correct 126 ms 7532 KB Output is correct
63 Correct 115 ms 7512 KB Output is correct
64 Correct 1054 ms 7952 KB Output is correct
65 Correct 1058 ms 8076 KB Output is correct
66 Correct 1036 ms 8076 KB Output is correct
67 Correct 1058 ms 7816 KB Output is correct
68 Correct 1056 ms 7876 KB Output is correct
69 Correct 1039 ms 8076 KB Output is correct
70 Correct 1027 ms 7964 KB Output is correct
71 Correct 1025 ms 7816 KB Output is correct
72 Correct 1020 ms 7816 KB Output is correct
73 Correct 1030 ms 7872 KB Output is correct
74 Correct 1038 ms 7816 KB Output is correct
75 Correct 1033 ms 7588 KB Output is correct
76 Correct 1031 ms 8268 KB Output is correct
77 Correct 1035 ms 7824 KB Output is correct
78 Correct 1050 ms 7956 KB Output is correct
79 Correct 1025 ms 8064 KB Output is correct
80 Correct 1047 ms 8080 KB Output is correct
81 Correct 1070 ms 8136 KB Output is correct
82 Correct 1038 ms 8180 KB Output is correct
83 Correct 1033 ms 7940 KB Output is correct
84 Correct 1049 ms 8208 KB Output is correct