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Submission #638316

# Submission time Handle Problem Language Result Execution time Memory
638316 2022-09-05T09:43:20 Z alvinpiter Lottery (CEOI18_lot) C++14
100 / 100
 491 ms 8392 KB 
#include<bits/stdc++.h>
using namespace std;
#define MAXN 10000
#define MAXQ 100

int n, l, a[MAXN + 3], q, mapToSortedUniqQuery[MAXN + 3];
int ans[MAXQ + 3][MAXN + 3];
vector<int> queries, sortedUniqQueries;

int main() {
  cin >> n >> l;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
  }

  cin >> q;
  for (int i = 0; i < q; i++) {
    int num;
    cin >> num;

    queries.push_back(num);
    sortedUniqQueries.push_back(num);
  }

  // Populate mapToSortedUniqQuery
  sort(sortedUniqQueries.begin(), sortedUniqQueries.end());
  sortedUniqQueries.erase(unique(sortedUniqQueries.begin(), sortedUniqQueries.end()), sortedUniqQueries.end());
  for (int k = 1; k <= n; k++) {
    mapToSortedUniqQuery[k] = lower_bound(sortedUniqQueries.begin(), sortedUniqQueries.end(), k) - sortedUniqQueries.begin() + 1;
  }

  memset(ans, 0, sizeof(ans));

  for (int d = 1; (1 + d) + (l - 1) <= n; d++) {
    int currentDiff = 0;
    for (int i = 1; i < l; i++) {
      currentDiff += (a[i] != a[i + d]);
    }

    int leftPtr = 1;
    for (int i = l; i + d <= n; i++) {
      currentDiff += (a[i] != a[i + d]);
      while (i - leftPtr + 1 > l) {
        currentDiff -= (a[leftPtr] != a[leftPtr + d]);
        leftPtr += 1;
      }

      // cout << "currentDiff " << leftPtr << " " << d << " " << currentDiff << " " << mapToSortedUniqQuery[currentDiff] << endl;

      ans[mapToSortedUniqQuery[currentDiff]][leftPtr] += 1;
      ans[mapToSortedUniqQuery[currentDiff]][leftPtr + d] += 1;
    }
  }

  // Apply the prefix sum
  for (int idx = 1; idx <= n - l + 1; idx++) {
    for (int qIndex = 1; qIndex <= sortedUniqQueries.size(); qIndex++) {
      ans[qIndex][idx] += ans[qIndex - 1][idx];
    }
  }

  for (int i = 0; i < q; i++) {
    int queryIndex = mapToSortedUniqQuery[queries[i]];
    for (int j = 1; j <= n - l + 1; j++) {
      if (j > 1) {
        cout << " ";
      }
      cout << ans[queryIndex][j];
    }
    cout << endl;
  }
}

Compilation message

lot.cpp: In function 'int main()':
lot.cpp:57:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for (int qIndex = 1; qIndex <= sortedUniqQueries.size(); qIndex++) {
      |                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 3 ms 4264 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4276 KB Output is correct
5 Correct 2 ms 4280 KB Output is correct
6 Correct 3 ms 4276 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4276 KB Output is correct
9 Correct 3 ms 4308 KB Output is correct
10 Correct 4 ms 4336 KB Output is correct
11 Correct 4 ms 4276 KB Output is correct
12 Correct 3 ms 4308 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 3 ms 4264 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4276 KB Output is correct
5 Correct 2 ms 4280 KB Output is correct
6 Correct 3 ms 4276 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4276 KB Output is correct
9 Correct 3 ms 4308 KB Output is correct
10 Correct 4 ms 4336 KB Output is correct
11 Correct 4 ms 4276 KB Output is correct
12 Correct 3 ms 4308 KB Output is correct
13 Correct 19 ms 4356 KB Output is correct
14 Correct 13 ms 4416 KB Output is correct
15 Correct 12 ms 4308 KB Output is correct
16 Correct 19 ms 4436 KB Output is correct
17 Correct 17 ms 4412 KB Output is correct
18 Correct 18 ms 4436 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 406 ms 4420 KB Output is correct
2 Correct 404 ms 4408 KB Output is correct
3 Correct 400 ms 4408 KB Output is correct
4 Correct 403 ms 4484 KB Output is correct
5 Correct 121 ms 4488 KB Output is correct
6 Correct 351 ms 4488 KB Output is correct
7 Correct 122 ms 4492 KB Output is correct
8 Correct 210 ms 4488 KB Output is correct
9 Correct 382 ms 4556 KB Output is correct
10 Correct 377 ms 4480 KB Output is correct
11 Correct 20 ms 4308 KB Output is correct
12 Correct 215 ms 4472 KB Output is correct
13 Correct 159 ms 4488 KB Output is correct
14 Correct 155 ms 4488 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 406 ms 4420 KB Output is correct
2 Correct 404 ms 4408 KB Output is correct
3 Correct 400 ms 4408 KB Output is correct
4 Correct 403 ms 4484 KB Output is correct
5 Correct 121 ms 4488 KB Output is correct
6 Correct 351 ms 4488 KB Output is correct
7 Correct 122 ms 4492 KB Output is correct
8 Correct 210 ms 4488 KB Output is correct
9 Correct 382 ms 4556 KB Output is correct
10 Correct 377 ms 4480 KB Output is correct
11 Correct 20 ms 4308 KB Output is correct
12 Correct 215 ms 4472 KB Output is correct
13 Correct 159 ms 4488 KB Output is correct
14 Correct 155 ms 4488 KB Output is correct
15 Correct 365 ms 4408 KB Output is correct
16 Correct 331 ms 4488 KB Output is correct
17 Correct 374 ms 4484 KB Output is correct
18 Correct 394 ms 4436 KB Output is correct
19 Correct 390 ms 4500 KB Output is correct
20 Correct 388 ms 4484 KB Output is correct
21 Correct 390 ms 4500 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4308 KB Output is correct
2 Correct 3 ms 4264 KB Output is correct
3 Correct 2 ms 4308 KB Output is correct
4 Correct 2 ms 4276 KB Output is correct
5 Correct 2 ms 4280 KB Output is correct
6 Correct 3 ms 4276 KB Output is correct
7 Correct 2 ms 4308 KB Output is correct
8 Correct 2 ms 4276 KB Output is correct
9 Correct 3 ms 4308 KB Output is correct
10 Correct 4 ms 4336 KB Output is correct
11 Correct 4 ms 4276 KB Output is correct
12 Correct 3 ms 4308 KB Output is correct
13 Correct 19 ms 4356 KB Output is correct
14 Correct 13 ms 4416 KB Output is correct
15 Correct 12 ms 4308 KB Output is correct
16 Correct 19 ms 4436 KB Output is correct
17 Correct 17 ms 4412 KB Output is correct
18 Correct 18 ms 4436 KB Output is correct
19 Correct 406 ms 4420 KB Output is correct
20 Correct 404 ms 4408 KB Output is correct
21 Correct 400 ms 4408 KB Output is correct
22 Correct 403 ms 4484 KB Output is correct
23 Correct 121 ms 4488 KB Output is correct
24 Correct 351 ms 4488 KB Output is correct
25 Correct 122 ms 4492 KB Output is correct
26 Correct 210 ms 4488 KB Output is correct
27 Correct 382 ms 4556 KB Output is correct
28 Correct 377 ms 4480 KB Output is correct
29 Correct 20 ms 4308 KB Output is correct
30 Correct 215 ms 4472 KB Output is correct
31 Correct 159 ms 4488 KB Output is correct
32 Correct 155 ms 4488 KB Output is correct
33 Correct 365 ms 4408 KB Output is correct
34 Correct 331 ms 4488 KB Output is correct
35 Correct 374 ms 4484 KB Output is correct
36 Correct 394 ms 4436 KB Output is correct
37 Correct 390 ms 4500 KB Output is correct
38 Correct 388 ms 4484 KB Output is correct
39 Correct 390 ms 4500 KB Output is correct
40 Correct 415 ms 5172 KB Output is correct
41 Correct 17 ms 4564 KB Output is correct
42 Correct 407 ms 5192 KB Output is correct
43 Correct 378 ms 4868 KB Output is correct
44 Correct 462 ms 5068 KB Output is correct
45 Correct 491 ms 8252 KB Output is correct
46 Correct 24 ms 4796 KB Output is correct
47 Correct 450 ms 8392 KB Output is correct
48 Correct 436 ms 6672 KB Output is correct
49 Correct 466 ms 7244 KB Output is correct