Find Fixed Number
Explore how to identify a fixed point in a sorted array where the element equals its index. This lesson demonstrates improving from a linear search to an efficient binary search approach, reducing time complexity to O(log n) while maintaining constant space usage.
We'll cover the following...
We'll cover the following...
In this lesson, we will be solving the following problem:
Given an array of distinct integers sorted in ascending order, write a function that returns a fixed point in the array. If there is not a fixed point, return None.
A fixed point in an array
Ais an indexisuch thatA[i]is equal toi.
The naive approach to solving this problem is pretty simple. You iterate through ...