Leetcode Problem 2597. The Number of Beautiful Subsets

2597. The Number of Beautiful Subsets

Leetcode Solutions

Backtracking with Pruning

  1. Define a helper function that takes the current index, the current subset, and the count of beautiful subsets.
  2. If the current index is equal to the length of nums, increment the count if the current subset is non-empty.
  3. For each element starting from the current index, check if adding it to the current subset would keep the subset beautiful.
  4. If it does, add the element to the current subset and recursively call the helper function with the next index.
  5. After the recursive call, remove the element from the current subset (backtrack).
  6. Also, make a recursive call without adding the current element to the subset (to consider the case where the current element is not included).
  7. Return the count of beautiful subsets.
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Dynamic Programming with Bitmasking

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