Leetcode Problem 2680. Maximum OR

2680. Maximum OR

Leetcode Solutions

Greedy Approach with Bit Manipulation

  1. Initialize variables to keep track of the current OR result (cur) and bits seen more than once (saved).
  2. Iterate through the array, updating cur and saved accordingly.
  3. Initialize a variable max_num to keep track of the maximum OR result.
  4. Iterate through the array again, for each number calculating the OR result if that number were to be left-shifted k times.
  5. Update max_num with the maximum value obtained.
  6. Return max_num as the final result.
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Prefix and Postfix OR Arrays Approach

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