Solution: Sqrt(x)
Understand how to compute the floor of the square root of a non-negative integer using modified binary search. This lesson teaches you to optimize search space iteratively, handle edge cases, and implement an O(log n) time complexity approach without relying on built-in exponentiation.
We'll cover the following...
We'll cover the following...
Statement
Given a non-negative integer x, compute and return the square root of x rounded down to the nearest integer. The result must also be non-negative.
Built-in exponent functions or operators (e.g., pow(x, 0.5) in C++ or x ** 0.5 in Python) are not permitted.
Constraints:
x
Solution
The key insight is that the integer square root of x lies somewhere in the range