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Submission #742528

# Submission time Handle Problem Language Result Execution time Memory
742528 2023-05-16T11:38:51 Z Stickfish Cubeword (CEOI19_cubeword) C++17
50 / 100
 185 ms 15552 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <cassert>
using namespace std;
using ll = long long;

const int MAXV = 33;
const ll MOD = 998244353;
ll f[MAXV][MAXV];
ll dp[MAXV][MAXV][MAXV];

int to_int(char c) {
    if ('a' <= c && c <= 'z')
        return c - 'a';
    assert(0);
    if ('A' <= c && c <= 'Z')
        return c - 'A' + 26;
    return c - '0' + 52;
}

void get_edg(vector<string> v) {
    for (int p = 0; p < MAXV; ++p) {
        for (int q = 0; q < MAXV; ++q) {
            f[p][q] = 0;
        }
    }
    sort(v.begin(), v.end());
    v.resize(unique(v.begin(), v.end()) - v.begin());
    for (size_t i = 0; i < v.size(); ++i) {
        int p = to_int(v[i][0]);
        int q = to_int(v[i].back());
        ++f[p][q];
    }
}

void get_dp() {
    for (int a = 0; a < MAXV; ++a) for (int b = 0; b < MAXV; ++b) for (int c = 0; c < MAXV; ++c) {
        if (b < a) {
            dp[a][b][c] = dp[b][a][c];
            continue;
        }
        if (c < b) {
            dp[a][b][c] = dp[a][c][b];
            continue;
        }
        dp[a][b][c] = 0;
        for (int x = 0; x < MAXV; ++x) {
            dp[a][b][c] += 1ll * f[a][x] * f[b][x] * f[c][x];
            dp[a][b][c] %= MOD;
        }
    }
}

ll get_ans() {
    ll ans = 0;
    get_dp();
    for (int a = 0; a < MAXV; ++a) for (int b = 0; b < MAXV; ++b) for (int c = 0; c < MAXV; ++c) for (int d = 0; d < MAXV; ++d) {
        ll pans = ans;
        ans += dp[a][b][c] * dp[a][b][d] % MOD * dp[a][c][d] % MOD * dp[b][c][d] % MOD;
        ans %= MOD;
    }
    return ans;
}

signed main() {
    int n;
    cin >> n;
    vector<vector<string>> vals(11);
    for (int i = 0; i < n; ++i) {
        string s;
        cin >> s;
        vals[s.size()].push_back(s);
        reverse(s.begin(), s.end());
        vals[s.size()].push_back(s);
    }
    ll ans = 0;
    for (int t = 0; t < 11; ++t) {
        if (vals[t].empty())
            continue;
        get_edg(vals[t]);
        ans += get_ans();
    }
    ans %= MOD;
    cout << ans << '\n';
}

Compilation message

cubeword.cpp: In function 'll get_ans()':
cubeword.cpp:60:12: warning: unused variable 'pans' [-Wunused-variable]
   60 |         ll pans = ans;
      |            ^~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 9400 KB Output is correct
2 Correct 154 ms 10240 KB Output is correct
3 Correct 150 ms 10296 KB Output is correct
4 Correct 147 ms 10304 KB Output is correct
5 Correct 153 ms 10264 KB Output is correct
6 Correct 146 ms 10404 KB Output is correct
7 Correct 148 ms 10208 KB Output is correct
8 Correct 155 ms 10148 KB Output is correct
9 Correct 153 ms 10340 KB Output is correct
10 Correct 152 ms 10300 KB Output is correct
11 Correct 150 ms 10316 KB Output is correct
12 Correct 150 ms 10300 KB Output is correct
13 Correct 156 ms 10224 KB Output is correct
14 Correct 161 ms 10376 KB Output is correct
15 Correct 162 ms 10292 KB Output is correct
16 Correct 152 ms 10340 KB Output is correct
17 Correct 149 ms 10260 KB Output is correct
18 Correct 152 ms 10260 KB Output is correct
19 Correct 151 ms 10212 KB Output is correct
20 Correct 161 ms 10216 KB Output is correct
21 Correct 153 ms 10116 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 9400 KB Output is correct
2 Correct 154 ms 10240 KB Output is correct
3 Correct 150 ms 10296 KB Output is correct
4 Correct 147 ms 10304 KB Output is correct
5 Correct 153 ms 10264 KB Output is correct
6 Correct 146 ms 10404 KB Output is correct
7 Correct 148 ms 10208 KB Output is correct
8 Correct 155 ms 10148 KB Output is correct
9 Correct 153 ms 10340 KB Output is correct
10 Correct 152 ms 10300 KB Output is correct
11 Correct 150 ms 10316 KB Output is correct
12 Correct 150 ms 10300 KB Output is correct
13 Correct 156 ms 10224 KB Output is correct
14 Correct 161 ms 10376 KB Output is correct
15 Correct 162 ms 10292 KB Output is correct
16 Correct 152 ms 10340 KB Output is correct
17 Correct 149 ms 10260 KB Output is correct
18 Correct 152 ms 10260 KB Output is correct
19 Correct 151 ms 10212 KB Output is correct
20 Correct 161 ms 10216 KB Output is correct
21 Correct 153 ms 10116 KB Output is correct
22 Correct 148 ms 8872 KB Output is correct
23 Correct 149 ms 8796 KB Output is correct
24 Correct 158 ms 8936 KB Output is correct
25 Correct 149 ms 8792 KB Output is correct
26 Correct 149 ms 8980 KB Output is correct
27 Correct 169 ms 8876 KB Output is correct
28 Correct 147 ms 8840 KB Output is correct
29 Correct 147 ms 8840 KB Output is correct
30 Correct 166 ms 8820 KB Output is correct
31 Correct 172 ms 8920 KB Output is correct
32 Correct 148 ms 8864 KB Output is correct
33 Correct 153 ms 8908 KB Output is correct
34 Correct 185 ms 8904 KB Output is correct
35 Correct 148 ms 8892 KB Output is correct
36 Correct 145 ms 8684 KB Output is correct
37 Correct 149 ms 8820 KB Output is correct
38 Correct 152 ms 8868 KB Output is correct
39 Correct 152 ms 8800 KB Output is correct
40 Correct 149 ms 8684 KB Output is correct
41 Correct 146 ms 8900 KB Output is correct
42 Correct 147 ms 8904 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 9400 KB Output is correct
2 Correct 154 ms 10240 KB Output is correct
3 Correct 150 ms 10296 KB Output is correct
4 Correct 147 ms 10304 KB Output is correct
5 Correct 153 ms 10264 KB Output is correct
6 Correct 146 ms 10404 KB Output is correct
7 Correct 148 ms 10208 KB Output is correct
8 Correct 155 ms 10148 KB Output is correct
9 Correct 153 ms 10340 KB Output is correct
10 Correct 152 ms 10300 KB Output is correct
11 Correct 150 ms 10316 KB Output is correct
12 Correct 150 ms 10300 KB Output is correct
13 Correct 156 ms 10224 KB Output is correct
14 Correct 161 ms 10376 KB Output is correct
15 Correct 162 ms 10292 KB Output is correct
16 Correct 152 ms 10340 KB Output is correct
17 Correct 149 ms 10260 KB Output is correct
18 Correct 152 ms 10260 KB Output is correct
19 Correct 151 ms 10212 KB Output is correct
20 Correct 161 ms 10216 KB Output is correct
21 Correct 153 ms 10116 KB Output is correct
22 Correct 148 ms 8872 KB Output is correct
23 Correct 149 ms 8796 KB Output is correct
24 Correct 158 ms 8936 KB Output is correct
25 Correct 149 ms 8792 KB Output is correct
26 Correct 149 ms 8980 KB Output is correct
27 Correct 169 ms 8876 KB Output is correct
28 Correct 147 ms 8840 KB Output is correct
29 Correct 147 ms 8840 KB Output is correct
30 Correct 166 ms 8820 KB Output is correct
31 Correct 172 ms 8920 KB Output is correct
32 Correct 148 ms 8864 KB Output is correct
33 Correct 153 ms 8908 KB Output is correct
34 Correct 185 ms 8904 KB Output is correct
35 Correct 148 ms 8892 KB Output is correct
36 Correct 145 ms 8684 KB Output is correct
37 Correct 149 ms 8820 KB Output is correct
38 Correct 152 ms 8868 KB Output is correct
39 Correct 152 ms 8800 KB Output is correct
40 Correct 149 ms 8684 KB Output is correct
41 Correct 146 ms 8900 KB Output is correct
42 Correct 147 ms 8904 KB Output is correct
43 Runtime error 43 ms 15552 KB Execution killed with signal 6
44 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 9400 KB Output is correct
2 Correct 154 ms 10240 KB Output is correct
3 Correct 150 ms 10296 KB Output is correct
4 Correct 147 ms 10304 KB Output is correct
5 Correct 153 ms 10264 KB Output is correct
6 Correct 146 ms 10404 KB Output is correct
7 Correct 148 ms 10208 KB Output is correct
8 Correct 155 ms 10148 KB Output is correct
9 Correct 153 ms 10340 KB Output is correct
10 Correct 152 ms 10300 KB Output is correct
11 Correct 150 ms 10316 KB Output is correct
12 Correct 150 ms 10300 KB Output is correct
13 Correct 156 ms 10224 KB Output is correct
14 Correct 161 ms 10376 KB Output is correct
15 Correct 162 ms 10292 KB Output is correct
16 Correct 152 ms 10340 KB Output is correct
17 Correct 149 ms 10260 KB Output is correct
18 Correct 152 ms 10260 KB Output is correct
19 Correct 151 ms 10212 KB Output is correct
20 Correct 161 ms 10216 KB Output is correct
21 Correct 153 ms 10116 KB Output is correct
22 Correct 148 ms 8872 KB Output is correct
23 Correct 149 ms 8796 KB Output is correct
24 Correct 158 ms 8936 KB Output is correct
25 Correct 149 ms 8792 KB Output is correct
26 Correct 149 ms 8980 KB Output is correct
27 Correct 169 ms 8876 KB Output is correct
28 Correct 147 ms 8840 KB Output is correct
29 Correct 147 ms 8840 KB Output is correct
30 Correct 166 ms 8820 KB Output is correct
31 Correct 172 ms 8920 KB Output is correct
32 Correct 148 ms 8864 KB Output is correct
33 Correct 153 ms 8908 KB Output is correct
34 Correct 185 ms 8904 KB Output is correct
35 Correct 148 ms 8892 KB Output is correct
36 Correct 145 ms 8684 KB Output is correct
37 Correct 149 ms 8820 KB Output is correct
38 Correct 152 ms 8868 KB Output is correct
39 Correct 152 ms 8800 KB Output is correct
40 Correct 149 ms 8684 KB Output is correct
41 Correct 146 ms 8900 KB Output is correct
42 Correct 147 ms 8904 KB Output is correct
43 Runtime error 43 ms 15552 KB Execution killed with signal 6
44 Halted 0 ms 0 KB -