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Submission #660099

# Submission time Handle Problem Language Result Execution time Memory
660099 2022-11-20T11:03:35 Z 600Mihnea Cubeword (CEOI19_cubeword) C++17
50 / 100
 70 ms 8284 KB 
bool home = 0;
#include <bits/stdc++.h>

using namespace std;

const int MODULO = 998244353;

int get_char_id(char ch) {
  assert(('a' <= ch && ch <= 'z') || ('A' <= ch && ch <= 'Z') || ('0' <= ch && ch <= '9'));
  if ('a' <= ch && ch <= 'z') {
    return ch - 'a';
  }
  if ('A' <= ch && ch <= 'Z') {
    return 1 + get_char_id('z') + ch - 'A';
  }
  return 1 + get_char_id('Z') + ch - '0';
}

const int MAX_WORD_LENGTH = 10;
///const int ALPHABET_SIZE = 2 * 26 + 10;
const int ALPHABET_SIZE = 16;
vector<string> words[MAX_WORD_LENGTH + 1];
int cnt_words[ALPHABET_SIZE][ALPHABET_SIZE];
int cnt3[ALPHABET_SIZE][ALPHABET_SIZE][ALPHABET_SIZE];

int main() {
  if (home == 0) {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  } else {
    freopen ("input.txt", "r", stdin);
  }

  {
    size_t num_samples;
    cin >> num_samples;
    for (size_t sample_index = 0; sample_index < num_samples; sample_index++) {
      string word;
      cin >> word;
      words[word.size()].push_back(word);
    }
  }
  int solution = 0;
  for (size_t word_length = 1; word_length <= MAX_WORD_LENGTH; word_length++) {
    if (words[word_length].empty()) {
      continue;
    }
    size_t word_count = words[word_length].size();
    for (size_t word_index = 0; word_index < word_count; word_index++) {
      string reverse_word = words[word_length][word_index];
      reverse(reverse_word.begin(), reverse_word.end());
      words[word_length].push_back(reverse_word);
    }
    sort(words[word_length].begin(), words[word_length].end());
    words[word_length].resize(unique(words[word_length].begin(), words[word_length].end()) - words[word_length].begin());
    word_count = words[word_length].size();
    for (size_t first_letter = 0; first_letter < ALPHABET_SIZE; first_letter++) {
      for (size_t last_letter = 0; last_letter < ALPHABET_SIZE; last_letter++) {
        cnt_words[first_letter][last_letter] = 0;
      }
    }
    for (size_t word_index = 0; word_index < word_count; word_index++) {
      cnt_words[get_char_id(words[word_length][word_index][0])][get_char_id(words[word_length][word_index].back())]++;
    }
    for (size_t a = 0; a < ALPHABET_SIZE; a++) {
      for (size_t b = a; b < ALPHABET_SIZE; b++) {
        for (size_t c = b; c < ALPHABET_SIZE; c++) {
          cnt3[a][b][c] = 0;
          for (size_t d = 0; d < ALPHABET_SIZE; d++) {
            cnt3[a][b][c] = (cnt3[a][b][c] + 1LL * cnt_words[d][a] * cnt_words[d][b] * cnt_words[d][c]) % MODULO;
          }
          cnt3[a][c][b] = cnt3[b][a][c] = cnt3[b][c][a] = cnt3[c][a][b] = cnt3[c][b][a] = cnt3[a][b][c];
        }
      }
    }
    for (size_t a = 0; a < ALPHABET_SIZE; a++) {
      for (size_t b = a + 1; b < ALPHABET_SIZE; b++) {
        for (size_t c = b + 1; c < ALPHABET_SIZE; c++) {
          for (size_t d = c + 1; d < ALPHABET_SIZE; d++) {

            int x1 = cnt3[a][b][c];
            int x2 = cnt3[a][d][b];
            int x3 = cnt3[a][c][d];
            int x4 = cnt3[b][c][d];
            //solution = (solution + 1LL * x1 * x2 % MODULO * x3 % MODULO * x4 * 24) % MODULO;
          }
        }
      }
    }
    for (size_t a = 0; a < ALPHABET_SIZE; a++) {
      for (size_t b = 0; b < ALPHABET_SIZE; b++) {
        for (size_t c = 0; c < ALPHABET_SIZE; c++) {
          for (size_t d = 0; d < ALPHABET_SIZE; d++) {
           // if (a == b || a == c || a == d || b == c || b == d || c == d) {
              int x1 = cnt3[a][b][c];
              int x2 = cnt3[a][d][b];
              int x3 = cnt3[a][c][d];
              int x4 = cnt3[b][c][d];
              solution = (solution + 1LL * x1 * x2 % MODULO * x3 % MODULO * x4) % MODULO;
           // }
          }
        }
      }
    }
  }
  cout << solution << "\n";

  return 0;
}

Compilation message

cubeword.cpp: In function 'int main()':
cubeword.cpp:80:17: warning: unused variable 'x1' [-Wunused-variable]
   80 |             int x1 = cnt3[a][b][c];
      |                 ^~
cubeword.cpp:81:17: warning: unused variable 'x2' [-Wunused-variable]
   81 |             int x2 = cnt3[a][d][b];
      |                 ^~
cubeword.cpp:82:17: warning: unused variable 'x3' [-Wunused-variable]
   82 |             int x3 = cnt3[a][c][d];
      |                 ^~
cubeword.cpp:83:17: warning: unused variable 'x4' [-Wunused-variable]
   83 |             int x4 = cnt3[b][c][d];
      |                 ^~
cubeword.cpp:30:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     freopen ("input.txt", "r", stdin);
      |     ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 7884 KB Output is correct
2 Correct 58 ms 7932 KB Output is correct
3 Correct 60 ms 7768 KB Output is correct
4 Correct 58 ms 7824 KB Output is correct
5 Correct 68 ms 7912 KB Output is correct
6 Correct 62 ms 7868 KB Output is correct
7 Correct 59 ms 7760 KB Output is correct
8 Correct 60 ms 7928 KB Output is correct
9 Correct 58 ms 7944 KB Output is correct
10 Correct 58 ms 7832 KB Output is correct
11 Correct 67 ms 7880 KB Output is correct
12 Correct 58 ms 7848 KB Output is correct
13 Correct 58 ms 7840 KB Output is correct
14 Correct 57 ms 7824 KB Output is correct
15 Correct 57 ms 7776 KB Output is correct
16 Correct 62 ms 7932 KB Output is correct
17 Correct 63 ms 7784 KB Output is correct
18 Correct 70 ms 7908 KB Output is correct
19 Correct 58 ms 7816 KB Output is correct
20 Correct 59 ms 7856 KB Output is correct
21 Correct 58 ms 7872 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 7884 KB Output is correct
2 Correct 58 ms 7932 KB Output is correct
3 Correct 60 ms 7768 KB Output is correct
4 Correct 58 ms 7824 KB Output is correct
5 Correct 68 ms 7912 KB Output is correct
6 Correct 62 ms 7868 KB Output is correct
7 Correct 59 ms 7760 KB Output is correct
8 Correct 60 ms 7928 KB Output is correct
9 Correct 58 ms 7944 KB Output is correct
10 Correct 58 ms 7832 KB Output is correct
11 Correct 67 ms 7880 KB Output is correct
12 Correct 58 ms 7848 KB Output is correct
13 Correct 58 ms 7840 KB Output is correct
14 Correct 57 ms 7824 KB Output is correct
15 Correct 57 ms 7776 KB Output is correct
16 Correct 62 ms 7932 KB Output is correct
17 Correct 63 ms 7784 KB Output is correct
18 Correct 70 ms 7908 KB Output is correct
19 Correct 58 ms 7816 KB Output is correct
20 Correct 59 ms 7856 KB Output is correct
21 Correct 58 ms 7872 KB Output is correct
22 Correct 59 ms 6916 KB Output is correct
23 Correct 59 ms 6944 KB Output is correct
24 Correct 59 ms 6856 KB Output is correct
25 Correct 70 ms 6808 KB Output is correct
26 Correct 54 ms 6992 KB Output is correct
27 Correct 56 ms 6900 KB Output is correct
28 Correct 55 ms 7036 KB Output is correct
29 Correct 56 ms 6860 KB Output is correct
30 Correct 60 ms 6916 KB Output is correct
31 Correct 63 ms 6944 KB Output is correct
32 Correct 56 ms 6888 KB Output is correct
33 Correct 56 ms 7044 KB Output is correct
34 Correct 56 ms 6936 KB Output is correct
35 Correct 61 ms 7084 KB Output is correct
36 Correct 57 ms 7036 KB Output is correct
37 Correct 57 ms 6856 KB Output is correct
38 Correct 64 ms 6896 KB Output is correct
39 Correct 56 ms 7004 KB Output is correct
40 Correct 59 ms 6832 KB Output is correct
41 Correct 58 ms 6868 KB Output is correct
42 Correct 58 ms 7432 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 7884 KB Output is correct
2 Correct 58 ms 7932 KB Output is correct
3 Correct 60 ms 7768 KB Output is correct
4 Correct 58 ms 7824 KB Output is correct
5 Correct 68 ms 7912 KB Output is correct
6 Correct 62 ms 7868 KB Output is correct
7 Correct 59 ms 7760 KB Output is correct
8 Correct 60 ms 7928 KB Output is correct
9 Correct 58 ms 7944 KB Output is correct
10 Correct 58 ms 7832 KB Output is correct
11 Correct 67 ms 7880 KB Output is correct
12 Correct 58 ms 7848 KB Output is correct
13 Correct 58 ms 7840 KB Output is correct
14 Correct 57 ms 7824 KB Output is correct
15 Correct 57 ms 7776 KB Output is correct
16 Correct 62 ms 7932 KB Output is correct
17 Correct 63 ms 7784 KB Output is correct
18 Correct 70 ms 7908 KB Output is correct
19 Correct 58 ms 7816 KB Output is correct
20 Correct 59 ms 7856 KB Output is correct
21 Correct 58 ms 7872 KB Output is correct
22 Correct 59 ms 6916 KB Output is correct
23 Correct 59 ms 6944 KB Output is correct
24 Correct 59 ms 6856 KB Output is correct
25 Correct 70 ms 6808 KB Output is correct
26 Correct 54 ms 6992 KB Output is correct
27 Correct 56 ms 6900 KB Output is correct
28 Correct 55 ms 7036 KB Output is correct
29 Correct 56 ms 6860 KB Output is correct
30 Correct 60 ms 6916 KB Output is correct
31 Correct 63 ms 6944 KB Output is correct
32 Correct 56 ms 6888 KB Output is correct
33 Correct 56 ms 7044 KB Output is correct
34 Correct 56 ms 6936 KB Output is correct
35 Correct 61 ms 7084 KB Output is correct
36 Correct 57 ms 7036 KB Output is correct
37 Correct 57 ms 6856 KB Output is correct
38 Correct 64 ms 6896 KB Output is correct
39 Correct 56 ms 7004 KB Output is correct
40 Correct 59 ms 6832 KB Output is correct
41 Correct 58 ms 6868 KB Output is correct
42 Correct 58 ms 7432 KB Output is correct
43 Runtime error 26 ms 8284 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 7884 KB Output is correct
2 Correct 58 ms 7932 KB Output is correct
3 Correct 60 ms 7768 KB Output is correct
4 Correct 58 ms 7824 KB Output is correct
5 Correct 68 ms 7912 KB Output is correct
6 Correct 62 ms 7868 KB Output is correct
7 Correct 59 ms 7760 KB Output is correct
8 Correct 60 ms 7928 KB Output is correct
9 Correct 58 ms 7944 KB Output is correct
10 Correct 58 ms 7832 KB Output is correct
11 Correct 67 ms 7880 KB Output is correct
12 Correct 58 ms 7848 KB Output is correct
13 Correct 58 ms 7840 KB Output is correct
14 Correct 57 ms 7824 KB Output is correct
15 Correct 57 ms 7776 KB Output is correct
16 Correct 62 ms 7932 KB Output is correct
17 Correct 63 ms 7784 KB Output is correct
18 Correct 70 ms 7908 KB Output is correct
19 Correct 58 ms 7816 KB Output is correct
20 Correct 59 ms 7856 KB Output is correct
21 Correct 58 ms 7872 KB Output is correct
22 Correct 59 ms 6916 KB Output is correct
23 Correct 59 ms 6944 KB Output is correct
24 Correct 59 ms 6856 KB Output is correct
25 Correct 70 ms 6808 KB Output is correct
26 Correct 54 ms 6992 KB Output is correct
27 Correct 56 ms 6900 KB Output is correct
28 Correct 55 ms 7036 KB Output is correct
29 Correct 56 ms 6860 KB Output is correct
30 Correct 60 ms 6916 KB Output is correct
31 Correct 63 ms 6944 KB Output is correct
32 Correct 56 ms 6888 KB Output is correct
33 Correct 56 ms 7044 KB Output is correct
34 Correct 56 ms 6936 KB Output is correct
35 Correct 61 ms 7084 KB Output is correct
36 Correct 57 ms 7036 KB Output is correct
37 Correct 57 ms 6856 KB Output is correct
38 Correct 64 ms 6896 KB Output is correct
39 Correct 56 ms 7004 KB Output is correct
40 Correct 59 ms 6832 KB Output is correct
41 Correct 58 ms 6868 KB Output is correct
42 Correct 58 ms 7432 KB Output is correct
43 Runtime error 26 ms 8284 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -