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답안 #660102

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
660102 2022-11-20T11:05:05 Z 600Mihnea Cubeword (CEOI19_cubeword) C++17
50 / 100
 70 ms 8336 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 = 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;
            }
          }
        }
      }
    }
    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: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

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 7904 KB Output is correct
2 Correct 64 ms 7824 KB Output is correct
3 Correct 61 ms 7828 KB Output is correct
4 Correct 61 ms 7868 KB Output is correct
5 Correct 61 ms 7868 KB Output is correct
6 Correct 60 ms 7876 KB Output is correct
7 Correct 60 ms 7832 KB Output is correct
8 Correct 61 ms 7884 KB Output is correct
9 Correct 62 ms 7864 KB Output is correct
10 Correct 60 ms 7844 KB Output is correct
11 Correct 60 ms 7844 KB Output is correct
12 Correct 59 ms 7800 KB Output is correct
13 Correct 60 ms 7804 KB Output is correct
14 Correct 61 ms 7788 KB Output is correct
15 Correct 64 ms 7844 KB Output is correct
16 Correct 60 ms 7868 KB Output is correct
17 Correct 60 ms 7824 KB Output is correct
18 Correct 61 ms 7880 KB Output is correct
19 Correct 70 ms 7868 KB Output is correct
20 Correct 61 ms 7852 KB Output is correct
21 Correct 69 ms 7916 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 7904 KB Output is correct
2 Correct 64 ms 7824 KB Output is correct
3 Correct 61 ms 7828 KB Output is correct
4 Correct 61 ms 7868 KB Output is correct
5 Correct 61 ms 7868 KB Output is correct
6 Correct 60 ms 7876 KB Output is correct
7 Correct 60 ms 7832 KB Output is correct
8 Correct 61 ms 7884 KB Output is correct
9 Correct 62 ms 7864 KB Output is correct
10 Correct 60 ms 7844 KB Output is correct
11 Correct 60 ms 7844 KB Output is correct
12 Correct 59 ms 7800 KB Output is correct
13 Correct 60 ms 7804 KB Output is correct
14 Correct 61 ms 7788 KB Output is correct
15 Correct 64 ms 7844 KB Output is correct
16 Correct 60 ms 7868 KB Output is correct
17 Correct 60 ms 7824 KB Output is correct
18 Correct 61 ms 7880 KB Output is correct
19 Correct 70 ms 7868 KB Output is correct
20 Correct 61 ms 7852 KB Output is correct
21 Correct 69 ms 7916 KB Output is correct
22 Correct 66 ms 6868 KB Output is correct
23 Correct 62 ms 6972 KB Output is correct
24 Correct 60 ms 6852 KB Output is correct
25 Correct 59 ms 6916 KB Output is correct
26 Correct 57 ms 7044 KB Output is correct
27 Correct 57 ms 6828 KB Output is correct
28 Correct 57 ms 7004 KB Output is correct
29 Correct 60 ms 6840 KB Output is correct
30 Correct 60 ms 6976 KB Output is correct
31 Correct 58 ms 6936 KB Output is correct
32 Correct 58 ms 6972 KB Output is correct
33 Correct 60 ms 7144 KB Output is correct
34 Correct 58 ms 6896 KB Output is correct
35 Correct 59 ms 7076 KB Output is correct
36 Correct 59 ms 7020 KB Output is correct
37 Correct 59 ms 6876 KB Output is correct
38 Correct 58 ms 6908 KB Output is correct
39 Correct 59 ms 7048 KB Output is correct
40 Correct 58 ms 6856 KB Output is correct
41 Correct 59 ms 6836 KB Output is correct
42 Correct 58 ms 7484 KB Output is correct

Subtask #3
0 / 34.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 7904 KB Output is correct
2 Correct 64 ms 7824 KB Output is correct
3 Correct 61 ms 7828 KB Output is correct
4 Correct 61 ms 7868 KB Output is correct
5 Correct 61 ms 7868 KB Output is correct
6 Correct 60 ms 7876 KB Output is correct
7 Correct 60 ms 7832 KB Output is correct
8 Correct 61 ms 7884 KB Output is correct
9 Correct 62 ms 7864 KB Output is correct
10 Correct 60 ms 7844 KB Output is correct
11 Correct 60 ms 7844 KB Output is correct
12 Correct 59 ms 7800 KB Output is correct
13 Correct 60 ms 7804 KB Output is correct
14 Correct 61 ms 7788 KB Output is correct
15 Correct 64 ms 7844 KB Output is correct
16 Correct 60 ms 7868 KB Output is correct
17 Correct 60 ms 7824 KB Output is correct
18 Correct 61 ms 7880 KB Output is correct
19 Correct 70 ms 7868 KB Output is correct
20 Correct 61 ms 7852 KB Output is correct
21 Correct 69 ms 7916 KB Output is correct
22 Correct 66 ms 6868 KB Output is correct
23 Correct 62 ms 6972 KB Output is correct
24 Correct 60 ms 6852 KB Output is correct
25 Correct 59 ms 6916 KB Output is correct
26 Correct 57 ms 7044 KB Output is correct
27 Correct 57 ms 6828 KB Output is correct
28 Correct 57 ms 7004 KB Output is correct
29 Correct 60 ms 6840 KB Output is correct
30 Correct 60 ms 6976 KB Output is correct
31 Correct 58 ms 6936 KB Output is correct
32 Correct 58 ms 6972 KB Output is correct
33 Correct 60 ms 7144 KB Output is correct
34 Correct 58 ms 6896 KB Output is correct
35 Correct 59 ms 7076 KB Output is correct
36 Correct 59 ms 7020 KB Output is correct
37 Correct 59 ms 6876 KB Output is correct
38 Correct 58 ms 6908 KB Output is correct
39 Correct 59 ms 7048 KB Output is correct
40 Correct 58 ms 6856 KB Output is correct
41 Correct 59 ms 6836 KB Output is correct
42 Correct 58 ms 7484 KB Output is correct
43 Runtime error 21 ms 8336 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 7904 KB Output is correct
2 Correct 64 ms 7824 KB Output is correct
3 Correct 61 ms 7828 KB Output is correct
4 Correct 61 ms 7868 KB Output is correct
5 Correct 61 ms 7868 KB Output is correct
6 Correct 60 ms 7876 KB Output is correct
7 Correct 60 ms 7832 KB Output is correct
8 Correct 61 ms 7884 KB Output is correct
9 Correct 62 ms 7864 KB Output is correct
10 Correct 60 ms 7844 KB Output is correct
11 Correct 60 ms 7844 KB Output is correct
12 Correct 59 ms 7800 KB Output is correct
13 Correct 60 ms 7804 KB Output is correct
14 Correct 61 ms 7788 KB Output is correct
15 Correct 64 ms 7844 KB Output is correct
16 Correct 60 ms 7868 KB Output is correct
17 Correct 60 ms 7824 KB Output is correct
18 Correct 61 ms 7880 KB Output is correct
19 Correct 70 ms 7868 KB Output is correct
20 Correct 61 ms 7852 KB Output is correct
21 Correct 69 ms 7916 KB Output is correct
22 Correct 66 ms 6868 KB Output is correct
23 Correct 62 ms 6972 KB Output is correct
24 Correct 60 ms 6852 KB Output is correct
25 Correct 59 ms 6916 KB Output is correct
26 Correct 57 ms 7044 KB Output is correct
27 Correct 57 ms 6828 KB Output is correct
28 Correct 57 ms 7004 KB Output is correct
29 Correct 60 ms 6840 KB Output is correct
30 Correct 60 ms 6976 KB Output is correct
31 Correct 58 ms 6936 KB Output is correct
32 Correct 58 ms 6972 KB Output is correct
33 Correct 60 ms 7144 KB Output is correct
34 Correct 58 ms 6896 KB Output is correct
35 Correct 59 ms 7076 KB Output is correct
36 Correct 59 ms 7020 KB Output is correct
37 Correct 59 ms 6876 KB Output is correct
38 Correct 58 ms 6908 KB Output is correct
39 Correct 59 ms 7048 KB Output is correct
40 Correct 58 ms 6856 KB Output is correct
41 Correct 59 ms 6836 KB Output is correct
42 Correct 58 ms 7484 KB Output is correct
43 Runtime error 21 ms 8336 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -