Leetcode Problem 1803. Count Pairs With XOR in a Range

1803. Count Pairs With XOR in a Range

Leetcode Solutions

Trie-based Approach for Counting Nice Pairs within a Range

  1. Initialize a Trie structure to store binary representations of numbers.
  2. Iterate over each number in the array.
  3. For the current number, count the number of elements in the Trie that would form a nice pair with it, where the XOR result is less than high + 1.
  4. Subtract the count of elements that would form a nice pair with the XOR result less than low.
  5. Add the current number to the Trie.
  6. Return the total count of nice pairs.
UML Thumbnail

Brute Force Approach for Counting Nice Pairs

Ask Question

Programming Language
image/screenshot of info(optional)
Full Screen
Loading...

Suggested Answer

Answer
Full Screen
Copy Answer Code
Loading...