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Submission #1095919

# Submission time Handle Problem Language Result Execution time Memory
1095919 2024-10-03T11:57:26 Z yoav_s Cubeword (CEOI19_cubeword) C++17
50 / 100
 140 ms 15176 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<ll> v;
typedef vector<v> vv;
typedef vector<vv> vvv;
typedef pair<ll, ll> p;
typedef vector<p> vp;
typedef vector<vp> vvp;
typedef vector<vvp> vvvp;
typedef pair<ll, p> tri;
typedef vector<tri> vtri;
typedef vector<vtri> vvtri;
typedef vector<vvtri> vvvtri;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;

#define f first
#define s second
#define pb push_back
#define eb emplace_back
#define all(v) (v).begin(),(v).end()

const ll INF = 1e18;
const ll mod = 998244353;

bool isPalindrome(string &str)
{
    for (ll i = 0; i < str.size() / 2; i++) if (str[i] != str[str.size() - i - 1]) return false;
    return true;
}

ll combinations(ll a, ll b, ll c, ll d)
{
    if (a == d) return 1;
    if (a == c || b == d) return 4;
    if (a == b && c == d) return 6;
    if (a == b || c == d) return 12;
    return 24;
}

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll n;
    cin >> n;
    vector<string> words(n);
    for (ll i = 0; i < n; i++) cin >> words[i];
    vector<char> characters;
    for (ll i=  'a'; i <= 'z'; i++) characters.pb(i);
    //for (ll i = 'A'; i <= 'Z'; i++) characters.pb(i);
    //for (ll i = '0'; i <= '9'; i++) characters.pb(i);
    map<char, char> charShrink;
    for (ll i = 0; i < characters.size(); i++) charShrink[characters[i]] = i;
    for (ll i = 0; i < n; i++) for (ll j = 0; j < words[i].size(); j++) words[i][j] = charShrink[words[i][j]];
    vector<vector<string>> byLength(11);
    set<string> exists;
    for (ll i = 0; i < n; i++)
    {
        reverse(all(words[i]));
        if (exists.count(words[i]) > 0) continue;
        reverse(all(words[i]));
        byLength[words[i].size()].pb(words[i]);
        exists.insert(words[i]);
    }
    ll c = characters.size();
    ll res = 0;
    for (ll i = 3; i <= 10; i++)
    {
        vv amt(c, v(c, 0));
        for (ll j = 0; j < byLength[i].size(); j++)
        {
            amt[byLength[i][j][0]][byLength[i][j].back()]++;
            if (!isPalindrome(byLength[i][j])) amt[byLength[i][j].back()][byLength[i][j][0]]++;
        }
        vvv possibilities(c, vv(c, v(c)));
        for (ll i = 0; i < c; i++)
        {
            for (ll j = 0; j < c; j++)
            {
                for (ll k = 0; k < c; k++)
                {
                    for (ll l = 0; l < c; l++)
                    {
                        possibilities[i][j][k] += ((amt[i][l] * amt[j][l]) % mod) * amt[k][l];
                        possibilities[i][j][k] %= mod;
                    }
                }
            }
        }
        for (ll corner1 = 0; corner1 < c; corner1++)
        {
            for (ll corner2 = 0; corner2 < c; corner2++)
            {
                for (ll corner3 = 0; corner3 < c; corner3++)
                {
                    for (ll corner4 = 0; corner4 < c; corner4++)
                    {
                        ll cur = possibilities[corner1][corner2][corner3];
                        cur = (cur * possibilities[corner1][corner2][corner4]) % mod;
                        cur = (cur * possibilities[corner1][corner3][corner4]) % mod;
                        cur = (cur * possibilities[corner2][corner3][corner4]) % mod;
                        res = (res + cur) % mod;
                    }
                }
            }
        }
    }
    cout << res << "\n";
    return 0;
}

Compilation message

cubeword.cpp: In function 'bool isPalindrome(std::string&)':
cubeword.cpp:32:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (ll i = 0; i < str.size() / 2; i++) if (str[i] != str[str.size() - i - 1]) return false;
      |                    ~~^~~~~~~~~~~~~~~~
cubeword.cpp: In function 'int main()':
cubeword.cpp:57:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for (ll i = 0; i < characters.size(); i++) charShrink[characters[i]] = i;
      |                    ~~^~~~~~~~~~~~~~~~~~~
cubeword.cpp:58:49: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for (ll i = 0; i < n; i++) for (ll j = 0; j < words[i].size(); j++) words[i][j] = charShrink[words[i][j]];
      |                                               ~~^~~~~~~~~~~~~~~~~
cubeword.cpp:74:26: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |         for (ll j = 0; j < byLength[i].size(); j++)
      |                        ~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 13736 KB Output is correct
2 Correct 95 ms 14636 KB Output is correct
3 Correct 98 ms 14636 KB Output is correct
4 Correct 98 ms 14624 KB Output is correct
5 Correct 98 ms 14820 KB Output is correct
6 Correct 96 ms 14784 KB Output is correct
7 Correct 96 ms 14796 KB Output is correct
8 Correct 94 ms 14768 KB Output is correct
9 Correct 111 ms 14828 KB Output is correct
10 Correct 97 ms 14624 KB Output is correct
11 Correct 140 ms 14760 KB Output is correct
12 Correct 99 ms 14576 KB Output is correct
13 Correct 103 ms 14712 KB Output is correct
14 Correct 101 ms 14744 KB Output is correct
15 Correct 101 ms 14720 KB Output is correct
16 Correct 103 ms 14748 KB Output is correct
17 Correct 111 ms 14624 KB Output is correct
18 Correct 103 ms 14744 KB Output is correct
19 Correct 133 ms 14744 KB Output is correct
20 Correct 99 ms 14748 KB Output is correct
21 Correct 97 ms 14748 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 13736 KB Output is correct
2 Correct 95 ms 14636 KB Output is correct
3 Correct 98 ms 14636 KB Output is correct
4 Correct 98 ms 14624 KB Output is correct
5 Correct 98 ms 14820 KB Output is correct
6 Correct 96 ms 14784 KB Output is correct
7 Correct 96 ms 14796 KB Output is correct
8 Correct 94 ms 14768 KB Output is correct
9 Correct 111 ms 14828 KB Output is correct
10 Correct 97 ms 14624 KB Output is correct
11 Correct 140 ms 14760 KB Output is correct
12 Correct 99 ms 14576 KB Output is correct
13 Correct 103 ms 14712 KB Output is correct
14 Correct 101 ms 14744 KB Output is correct
15 Correct 101 ms 14720 KB Output is correct
16 Correct 103 ms 14748 KB Output is correct
17 Correct 111 ms 14624 KB Output is correct
18 Correct 103 ms 14744 KB Output is correct
19 Correct 133 ms 14744 KB Output is correct
20 Correct 99 ms 14748 KB Output is correct
21 Correct 97 ms 14748 KB Output is correct
22 Correct 102 ms 14940 KB Output is correct
23 Correct 101 ms 15136 KB Output is correct
24 Correct 102 ms 15108 KB Output is correct
25 Correct 96 ms 15132 KB Output is correct
26 Correct 101 ms 15136 KB Output is correct
27 Correct 98 ms 15008 KB Output is correct
28 Correct 97 ms 15132 KB Output is correct
29 Correct 102 ms 15088 KB Output is correct
30 Correct 98 ms 15020 KB Output is correct
31 Correct 99 ms 15080 KB Output is correct
32 Correct 97 ms 15064 KB Output is correct
33 Correct 97 ms 14944 KB Output is correct
34 Correct 97 ms 15012 KB Output is correct
35 Correct 100 ms 15008 KB Output is correct
36 Correct 98 ms 15048 KB Output is correct
37 Correct 97 ms 15132 KB Output is correct
38 Correct 97 ms 15136 KB Output is correct
39 Correct 104 ms 15132 KB Output is correct
40 Correct 99 ms 15068 KB Output is correct
41 Correct 105 ms 15132 KB Output is correct
42 Correct 101 ms 15176 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 13736 KB Output is correct
2 Correct 95 ms 14636 KB Output is correct
3 Correct 98 ms 14636 KB Output is correct
4 Correct 98 ms 14624 KB Output is correct
5 Correct 98 ms 14820 KB Output is correct
6 Correct 96 ms 14784 KB Output is correct
7 Correct 96 ms 14796 KB Output is correct
8 Correct 94 ms 14768 KB Output is correct
9 Correct 111 ms 14828 KB Output is correct
10 Correct 97 ms 14624 KB Output is correct
11 Correct 140 ms 14760 KB Output is correct
12 Correct 99 ms 14576 KB Output is correct
13 Correct 103 ms 14712 KB Output is correct
14 Correct 101 ms 14744 KB Output is correct
15 Correct 101 ms 14720 KB Output is correct
16 Correct 103 ms 14748 KB Output is correct
17 Correct 111 ms 14624 KB Output is correct
18 Correct 103 ms 14744 KB Output is correct
19 Correct 133 ms 14744 KB Output is correct
20 Correct 99 ms 14748 KB Output is correct
21 Correct 97 ms 14748 KB Output is correct
22 Correct 102 ms 14940 KB Output is correct
23 Correct 101 ms 15136 KB Output is correct
24 Correct 102 ms 15108 KB Output is correct
25 Correct 96 ms 15132 KB Output is correct
26 Correct 101 ms 15136 KB Output is correct
27 Correct 98 ms 15008 KB Output is correct
28 Correct 97 ms 15132 KB Output is correct
29 Correct 102 ms 15088 KB Output is correct
30 Correct 98 ms 15020 KB Output is correct
31 Correct 99 ms 15080 KB Output is correct
32 Correct 97 ms 15064 KB Output is correct
33 Correct 97 ms 14944 KB Output is correct
34 Correct 97 ms 15012 KB Output is correct
35 Correct 100 ms 15008 KB Output is correct
36 Correct 98 ms 15048 KB Output is correct
37 Correct 97 ms 15132 KB Output is correct
38 Correct 97 ms 15136 KB Output is correct
39 Correct 104 ms 15132 KB Output is correct
40 Correct 99 ms 15068 KB Output is correct
41 Correct 105 ms 15132 KB Output is correct
42 Correct 101 ms 15176 KB Output is correct
43 Incorrect 97 ms 12068 KB Output isn't correct
44 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 13736 KB Output is correct
2 Correct 95 ms 14636 KB Output is correct
3 Correct 98 ms 14636 KB Output is correct
4 Correct 98 ms 14624 KB Output is correct
5 Correct 98 ms 14820 KB Output is correct
6 Correct 96 ms 14784 KB Output is correct
7 Correct 96 ms 14796 KB Output is correct
8 Correct 94 ms 14768 KB Output is correct
9 Correct 111 ms 14828 KB Output is correct
10 Correct 97 ms 14624 KB Output is correct
11 Correct 140 ms 14760 KB Output is correct
12 Correct 99 ms 14576 KB Output is correct
13 Correct 103 ms 14712 KB Output is correct
14 Correct 101 ms 14744 KB Output is correct
15 Correct 101 ms 14720 KB Output is correct
16 Correct 103 ms 14748 KB Output is correct
17 Correct 111 ms 14624 KB Output is correct
18 Correct 103 ms 14744 KB Output is correct
19 Correct 133 ms 14744 KB Output is correct
20 Correct 99 ms 14748 KB Output is correct
21 Correct 97 ms 14748 KB Output is correct
22 Correct 102 ms 14940 KB Output is correct
23 Correct 101 ms 15136 KB Output is correct
24 Correct 102 ms 15108 KB Output is correct
25 Correct 96 ms 15132 KB Output is correct
26 Correct 101 ms 15136 KB Output is correct
27 Correct 98 ms 15008 KB Output is correct
28 Correct 97 ms 15132 KB Output is correct
29 Correct 102 ms 15088 KB Output is correct
30 Correct 98 ms 15020 KB Output is correct
31 Correct 99 ms 15080 KB Output is correct
32 Correct 97 ms 15064 KB Output is correct
33 Correct 97 ms 14944 KB Output is correct
34 Correct 97 ms 15012 KB Output is correct
35 Correct 100 ms 15008 KB Output is correct
36 Correct 98 ms 15048 KB Output is correct
37 Correct 97 ms 15132 KB Output is correct
38 Correct 97 ms 15136 KB Output is correct
39 Correct 104 ms 15132 KB Output is correct
40 Correct 99 ms 15068 KB Output is correct
41 Correct 105 ms 15132 KB Output is correct
42 Correct 101 ms 15176 KB Output is correct
43 Incorrect 97 ms 12068 KB Output isn't correct
44 Halted 0 ms 0 KB -