Searching Algorithms in Python — Python Technical Interview Questions & Answers
Searching Algorithms in Python
Searching Algorithms in Python
- Linear search walks left to right — works on any list, O(n). Binary search cuts half each time — list must be sorted, O(log n).
- If they say binary search, first sentence is “sorted”. Unsorted binary search is wrong.
- Searching Algorithms in Python — output: True then 1. Linear membership. Binary search needs a sorted list.
Technical Interview Tip: Linear vs binary: sorted or not + complexity.
Code Examples for Searching Algorithms in Python
Example
# Searching Algorithms in Python
a = [70, 90, 80]
print(90 in a)
print(a.index(90) if 90 in a else -1)
Searching Algorithms in Python — output: True then 1. Linear membership. Binary search needs a sorted list.
How to Explain Searching Algorithms in Python to an Interviewer
Explain Searching Algorithms as if you are teaching a junior — definition, then one tiny script.
Linear : scan all, any list. Binary : sorted only, mid.
What does the example print, and why?
Searching Algorithms in Python — output: True then 1
What mistake do freshers make with Searching Algorithms?
Binary on unsorted data.