Leetcode Problem 1239. Maximum Length of a Concatenated String with Unique Characters

1239. Maximum Length of a Concatenated String with Unique Characters

Leetcode Solutions

Approach: Iterative with Bit Manipulation

  1. Initialize a list results with one element: an integer 0 representing an empty string.
  2. For each string in arr, convert it to a bitset and its length.
  3. Iterate over the current results and attempt to combine the bitset of the current string with each bitset in results.
  4. If the combination is valid (no overlapping bits), add the new combined bitset to results.
  5. Update the maximum length best if the new combination is longer.
  6. Return best after processing all strings.
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Approach: Backtracking

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