oj.uz

Submission #880396

# Submission time Handle Problem Language Result Execution time Memory
880396 2023-11-29T10:21:58 Z MilosMilutinovic Misspelling (JOI22_misspelling) C++14
28 / 100
 4000 ms 159880 KB 
#include <bits/stdc++.h>

using namespace std;

const int md = 1e9 + 7;

int ckadd(int a, int b) {
  return a + b >= md ? a + b - md : a + b;
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  vector<int> a(m), b(m);
  for (int i = 0; i < m; i++) {
    cin >> a[i] >> b[i];
    --a[i]; --b[i];
  }
  const int A = 26;
  vector<vector<int>> dp(n, vector<int>(A));
  dp[0] = vector<int>(A, 1);
  multiset<int> sa, sb;
  vector<vector<vector<int>>> qs(n, vector<vector<int>>(2));
  for (int i = 0; i < m; i++) {
    if (a[i] == b[i]) {
      continue;
    }
    if (a[i] < b[i]) {
      sa.insert(a[i]);
      qs[b[i]][0].push_back(a[i]);
    }
    if (a[i] > b[i]) {
      sb.insert(b[i]);
      qs[a[i]][1].push_back(b[i]);
    }
  }
  for (int i = 1; i < n; i++) {
    int mx_a = -1;
    int mx_b = -1;
    if (!sa.empty()) {
      auto it = sa.lower_bound(i);
      if (it != sa.begin()) {
        mx_a = *prev(it);
      }
    }
    if (!sb.empty()) {
      auto it = sb.lower_bound(i);
      if (it != sb.begin()) {
        mx_b = *prev(it);
      }
    }
    for (int j = max(mx_a, mx_b) + 1; j < i; j++) {
      for (int c = 0; c < A; c++) {
        for (int cc = 0; cc < A; cc++) {
          if (c == cc) {
            continue;
          }
          dp[i][c] = ckadd(dp[i][c], dp[j][cc]);
        }
      }
    }
    if (mx_a <= mx_b) {
      for (int j = mx_a + 1; j <= mx_b; j++) {
        for (int c = 0; c < A; c++) {
          for (int cc = c + 1; cc < A; cc++) {
            dp[i][cc] = ckadd(dp[i][cc], dp[j][c]);
          }
        }
      }
    } else {
      for (int j = mx_b + 1; j <= mx_a; j++) {
        for (int c = 0; c < A; c++) {
          for (int cc = 0; cc < c; cc++) {
            dp[i][cc] = ckadd(dp[i][cc], dp[j][c]);
          }
        }
      }
    }
    /* for (int c = 0; c < A; c++) {
      for (int j = min(mx_a, mx_b) + 1; j < i; j++) {
        for (int cc = 0; cc < A; cc++) {
          if (c == cc) {
            continue;
          }
          bool ok = true;
          if (cc < c && j <= mx_a) {
            ok = false;
          }
          if (cc > c && j <= mx_b) {
            ok = false;
          }
          if (ok) {
            dp[i][c] = ckadd(dp[i][c], dp[j][cc]);
          }
        }
      }
    } */
    for (int v : qs[i][0]) {
      sa.erase(sa.find(v));
    }
    for (int v : qs[i][1]) {
      sb.erase(sb.find(v));
    }
  }
  int ans = 0;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < A; j++) {
      ans = ckadd(ans, dp[i][j]);
    }
  }
  cout << ans << '\n';
  return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 9 ms 504 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 30 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 890 ms 153096 KB Output is correct
6 Correct 1276 ms 153100 KB Output is correct
7 Correct 1197 ms 159728 KB Output is correct
8 Correct 858 ms 159828 KB Output is correct
9 Correct 1271 ms 159880 KB Output is correct
10 Correct 24 ms 6748 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Execution timed out 4091 ms 159660 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 9 ms 504 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 30 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 25 ms 6488 KB Output is correct
27 Execution timed out 4059 ms 5468 KB Time limit exceeded
28 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 9 ms 504 KB Output is correct
16 Correct 3 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 4 ms 1116 KB Output is correct
23 Correct 30 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 890 ms 153096 KB Output is correct
31 Correct 1276 ms 153100 KB Output is correct
32 Correct 1197 ms 159728 KB Output is correct
33 Correct 858 ms 159828 KB Output is correct
34 Correct 1271 ms 159880 KB Output is correct
35 Correct 24 ms 6748 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Execution timed out 4091 ms 159660 KB Time limit exceeded
39 Halted 0 ms 0 KB -