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Submission #1025525

# Submission time Handle Problem Language Result Execution time Memory
1025525 2024-07-17T06:10:20 Z 우민규(#10941) Cubeword (CEOI19_cubeword) C++17
50 / 100
 130 ms 15860 KB 
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'

const int SIGMA = 26;
const int MOD = 998244353;

int mul(int a, int b) { return (int64_t)a * (int64_t)b % MOD; }
int mul(int a, int b, int c) { return mul(mul(a, b), c); }
int mul(int a, int b, int c, int d) { return mul(mul(a, b), mul(c, d)); }
void add(int& a, int b) {
  a = ((int64_t)a + (int64_t)b) % MOD;
  //   if (a >= MOD) a -= MOD;
}
int id(char c) {
  if ('a' <= c && c <= 'z') return c - 'a';
  if ('A' <= c && c <= 'Z') return c - 'A' + 26;
  return c - '0' + 52;
  //   return 0;
}

int y[SIGMA][SIGMA][SIGMA];
int ways[8][SIGMA][SIGMA];

void solve() {
  int n;
  cin >> n;
  set<string> saw;
  for (int i = 0; i < n; ++i) {
    string cur;
    cin >> cur;

    string cur_rev = cur;
    reverse(cur_rev.begin(), cur_rev.end());

    saw.insert(cur);
    saw.insert(cur_rev);
  }

  for (auto& word : saw) {
    int cf = id(word.front()), cb = id(word.back());
    ways[word.size() - 3][cf][cb] += 1;
  }

  int tot_way = 0;
  for (auto& way : ways) {
    // do threes
    fill(&y[0][0][0], &y[0][0][0] + SIGMA * SIGMA * SIGMA, 0);
    for (int c1 = 0; c1 < SIGMA; ++c1)
      for (int c2 = 0; c2 < SIGMA; ++c2)
        for (int c3 = 0; c3 < SIGMA; ++c3)
          for (int c4 = 0; c4 < SIGMA; ++c4)
            add(y[c1][c2][c3], mul(way[c1][c4], way[c2][c4], way[c3][c4]));

    for (int c1 = 0; c1 < SIGMA; ++c1)
      for (int c2 = 0; c2 < SIGMA; ++c2)
        for (int c3 = 0; c3 < SIGMA; ++c3)
          for (int c4 = 0; c4 < SIGMA; ++c4)
            add(tot_way, mul(y[c1][c2][c3], y[c1][c2][c4], y[c1][c3][c4],
                             y[c2][c3][c4]));
  }
  cout << tot_way << "\n";
}

int main() {
  cin.tie(0)->sync_with_stdio(0);
  int t = 1;

  while (t--) {
    solve();
  }
  return 0;
}

Subtask #1
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 14928 KB Output is correct
2 Correct 116 ms 14928 KB Output is correct
3 Correct 117 ms 14932 KB Output is correct
4 Correct 115 ms 14928 KB Output is correct
5 Correct 115 ms 14932 KB Output is correct
6 Correct 119 ms 14932 KB Output is correct
7 Correct 117 ms 14780 KB Output is correct
8 Correct 121 ms 14908 KB Output is correct
9 Correct 114 ms 15000 KB Output is correct
10 Correct 123 ms 14928 KB Output is correct
11 Correct 114 ms 14932 KB Output is correct
12 Correct 118 ms 14760 KB Output is correct
13 Correct 117 ms 14928 KB Output is correct
14 Correct 124 ms 14932 KB Output is correct
15 Correct 115 ms 14932 KB Output is correct
16 Correct 119 ms 14932 KB Output is correct
17 Correct 115 ms 14928 KB Output is correct
18 Correct 118 ms 14784 KB Output is correct
19 Correct 115 ms 14928 KB Output is correct
20 Correct 120 ms 14932 KB Output is correct
21 Correct 115 ms 14964 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 14928 KB Output is correct
2 Correct 116 ms 14928 KB Output is correct
3 Correct 117 ms 14932 KB Output is correct
4 Correct 115 ms 14928 KB Output is correct
5 Correct 115 ms 14932 KB Output is correct
6 Correct 119 ms 14932 KB Output is correct
7 Correct 117 ms 14780 KB Output is correct
8 Correct 121 ms 14908 KB Output is correct
9 Correct 114 ms 15000 KB Output is correct
10 Correct 123 ms 14928 KB Output is correct
11 Correct 114 ms 14932 KB Output is correct
12 Correct 118 ms 14760 KB Output is correct
13 Correct 117 ms 14928 KB Output is correct
14 Correct 124 ms 14932 KB Output is correct
15 Correct 115 ms 14932 KB Output is correct
16 Correct 119 ms 14932 KB Output is correct
17 Correct 115 ms 14928 KB Output is correct
18 Correct 118 ms 14784 KB Output is correct
19 Correct 115 ms 14928 KB Output is correct
20 Correct 120 ms 14932 KB Output is correct
21 Correct 115 ms 14964 KB Output is correct
22 Correct 119 ms 15440 KB Output is correct
23 Correct 115 ms 15584 KB Output is correct
24 Correct 116 ms 15620 KB Output is correct
25 Correct 115 ms 15444 KB Output is correct
26 Correct 115 ms 15444 KB Output is correct
27 Correct 121 ms 15444 KB Output is correct
28 Correct 116 ms 15608 KB Output is correct
29 Correct 116 ms 15444 KB Output is correct
30 Correct 121 ms 15420 KB Output is correct
31 Correct 130 ms 15636 KB Output is correct
32 Correct 129 ms 15444 KB Output is correct
33 Correct 125 ms 15440 KB Output is correct
34 Correct 124 ms 15440 KB Output is correct
35 Correct 114 ms 15444 KB Output is correct
36 Correct 130 ms 15444 KB Output is correct
37 Correct 118 ms 15436 KB Output is correct
38 Correct 116 ms 15552 KB Output is correct
39 Correct 115 ms 15668 KB Output is correct
40 Correct 112 ms 15536 KB Output is correct
41 Correct 110 ms 15444 KB Output is correct
42 Correct 120 ms 15696 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 14928 KB Output is correct
2 Correct 116 ms 14928 KB Output is correct
3 Correct 117 ms 14932 KB Output is correct
4 Correct 115 ms 14928 KB Output is correct
5 Correct 115 ms 14932 KB Output is correct
6 Correct 119 ms 14932 KB Output is correct
7 Correct 117 ms 14780 KB Output is correct
8 Correct 121 ms 14908 KB Output is correct
9 Correct 114 ms 15000 KB Output is correct
10 Correct 123 ms 14928 KB Output is correct
11 Correct 114 ms 14932 KB Output is correct
12 Correct 118 ms 14760 KB Output is correct
13 Correct 117 ms 14928 KB Output is correct
14 Correct 124 ms 14932 KB Output is correct
15 Correct 115 ms 14932 KB Output is correct
16 Correct 119 ms 14932 KB Output is correct
17 Correct 115 ms 14928 KB Output is correct
18 Correct 118 ms 14784 KB Output is correct
19 Correct 115 ms 14928 KB Output is correct
20 Correct 120 ms 14932 KB Output is correct
21 Correct 115 ms 14964 KB Output is correct
22 Correct 119 ms 15440 KB Output is correct
23 Correct 115 ms 15584 KB Output is correct
24 Correct 116 ms 15620 KB Output is correct
25 Correct 115 ms 15444 KB Output is correct
26 Correct 115 ms 15444 KB Output is correct
27 Correct 121 ms 15444 KB Output is correct
28 Correct 116 ms 15608 KB Output is correct
29 Correct 116 ms 15444 KB Output is correct
30 Correct 121 ms 15420 KB Output is correct
31 Correct 130 ms 15636 KB Output is correct
32 Correct 129 ms 15444 KB Output is correct
33 Correct 125 ms 15440 KB Output is correct
34 Correct 124 ms 15440 KB Output is correct
35 Correct 114 ms 15444 KB Output is correct
36 Correct 130 ms 15444 KB Output is correct
37 Correct 118 ms 15436 KB Output is correct
38 Correct 116 ms 15552 KB Output is correct
39 Correct 115 ms 15668 KB Output is correct
40 Correct 112 ms 15536 KB Output is correct
41 Correct 110 ms 15444 KB Output is correct
42 Correct 120 ms 15696 KB Output is correct
43 Incorrect 120 ms 15860 KB Output isn't correct
44 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 14928 KB Output is correct
2 Correct 116 ms 14928 KB Output is correct
3 Correct 117 ms 14932 KB Output is correct
4 Correct 115 ms 14928 KB Output is correct
5 Correct 115 ms 14932 KB Output is correct
6 Correct 119 ms 14932 KB Output is correct
7 Correct 117 ms 14780 KB Output is correct
8 Correct 121 ms 14908 KB Output is correct
9 Correct 114 ms 15000 KB Output is correct
10 Correct 123 ms 14928 KB Output is correct
11 Correct 114 ms 14932 KB Output is correct
12 Correct 118 ms 14760 KB Output is correct
13 Correct 117 ms 14928 KB Output is correct
14 Correct 124 ms 14932 KB Output is correct
15 Correct 115 ms 14932 KB Output is correct
16 Correct 119 ms 14932 KB Output is correct
17 Correct 115 ms 14928 KB Output is correct
18 Correct 118 ms 14784 KB Output is correct
19 Correct 115 ms 14928 KB Output is correct
20 Correct 120 ms 14932 KB Output is correct
21 Correct 115 ms 14964 KB Output is correct
22 Correct 119 ms 15440 KB Output is correct
23 Correct 115 ms 15584 KB Output is correct
24 Correct 116 ms 15620 KB Output is correct
25 Correct 115 ms 15444 KB Output is correct
26 Correct 115 ms 15444 KB Output is correct
27 Correct 121 ms 15444 KB Output is correct
28 Correct 116 ms 15608 KB Output is correct
29 Correct 116 ms 15444 KB Output is correct
30 Correct 121 ms 15420 KB Output is correct
31 Correct 130 ms 15636 KB Output is correct
32 Correct 129 ms 15444 KB Output is correct
33 Correct 125 ms 15440 KB Output is correct
34 Correct 124 ms 15440 KB Output is correct
35 Correct 114 ms 15444 KB Output is correct
36 Correct 130 ms 15444 KB Output is correct
37 Correct 118 ms 15436 KB Output is correct
38 Correct 116 ms 15552 KB Output is correct
39 Correct 115 ms 15668 KB Output is correct
40 Correct 112 ms 15536 KB Output is correct
41 Correct 110 ms 15444 KB Output is correct
42 Correct 120 ms 15696 KB Output is correct
43 Incorrect 120 ms 15860 KB Output isn't correct
44 Halted 0 ms 0 KB -