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Given the root of a binary tree, create two functions:
serialize(root) – Converts the binary tree into a string representation.
deserialize(s) – Reconstructs the binary tree from its string representation.
January 1, 2025 | array, dsa, DSA Sheet, Google | No comments
Given an integer A. Compute and return the square root of A. If A is not a perfect square, return floor(sqrt(A)). The value of A can cross the range of Integer.
August 10, 2023 | DSA Sheet | No comments
Given a zero-based permutation nums (0-indexed), build an array ans of the same length where ans[i] = nums[nums[i]] for each 0 <= i < nums.length and return it. A zero-based permutation nums is an array of distinct integers from 0 to nums.length - 1 (inclusive).
August 9, 2023 | DSA Sheet | No comments