<ul data-eligibleForWebStory="false"><li>Segment Trees are a data structure used to perform range queries efficiently.</li><li>The code provided shows a basic implementation of a Segment Tree to find the maximum value in a given range.</li><li>The implementation includes functions for building the segment tree and querying the maximum value in a specified range.</li><li>The build function constructs the segment tree recursively by storing the maximum value at each node.</li><li>The query function is used to find the maximum value in a specified range [l, r] efficiently using the segment tree.</li><li>The main function reads input, builds the segment tree, and performs range queries based on user input.</li><li>The segment tree is initialized with size 4*n to ensure sufficient space for building the tree.</li><li>The code snippet also provides a test case example for better understanding and includes a space complexity analysis.</li><li>Space complexity of the Segment Tree is O(n) where n is the size of the input array.</li><li>Time complexity for building the tree is O(n), querying is O(log n), and updating is also O(log n).</li><li>Overall, Segment Trees are useful for efficient range query operations on arrays and have O(log n) query time complexity.</li></ul>

What are Segment Trees?

Discover more