Leetcode Problem 2261. K Divisible Elements Subarrays

2261. K Divisible Elements Subarrays

Leetcode Solutions

Set-based Approach for Distinct Subarrays

  1. Initialize an empty set ans to store unique subarrays.
  2. Iterate over the array with two nested loops, with i as the start index and j as the end index of the current subarray.
  3. For each i, initialize an empty list tt to represent the current subarray and a counter ct to count elements divisible by p.
  4. For each j, add nums[j] to tt and increment ct if nums[j] is divisible by p.
  5. If ct exceeds k, break the inner loop as we cannot include more elements divisible by p.
  6. Otherwise, add the current subarray tt to the set ans.
  7. After the loops, return the size of the set ans as the number of distinct subarrays.
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Brute Force with Early Termination

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