Python Coding Interview Question
Preparing for Python Coding Interviews
Python Coding Interview Question
In a Python coding interview, candidates are typically asked to solve algorithmic problems or programming challenges using the Python programming language. They are evaluated based on their problem-solving skills, understanding of Python syntax and data structures, and their ability to write clean and efficient code. Interview questions may cover a range of topics including strings, arrays, linked lists, trees, sorting algorithms, dynamic programming, and more. Candidates are expected to communicate their thought process clearly, write code that is both correct and optimized, and demonstrate their ability to test and debug their solutions. Practicing Python coding challenges and familiarizing oneself with common interview question patterns can help prepare candidates for Python coding interviews.
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1 - Write a Python function to check if a string is a palindrome.
A palindrome is a word, phrase, number, or other sequences of characters that reads the same forward and backward.
Example code snippet:
```python
def is_palindrome(s):
s = s.lower()
return s == s[:: 1]
```
2) Implement a function to find the nth Fibonacci number recursively in Python.
The Fibonacci sequence is a series of numbers in which each number is the sum of the two preceding ones, starting from 0 and 1.
Example code snippet:
```python
def fibonacci(n):
if n ≤ 1:
return n
else:
return fibonacci(n 1) + fibonacci(n 2)
```
3) Create a Python function to reverse a list without using the built in reverse() method.
This task involves reversing the order of elements in a list without directly using the reverse() method.
Example code snippet:
```python
def reverse_list(lst):
return lst[:: 1]
```
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4) Write a Python program to remove duplicates from a list.
The goal is to create a function that takes a list and returns a new list with duplicates removed.
Example code snippet:
```python
def remove_duplicates(lst):
return list(set(lst))
```
5) Implement a stack in Python using a list.
A stack is a data structure that follows the Last In First Out (LIFO) principle.
Example code snippet:
```python
class Stack:
def init(self):
self.items = []
def push(self, item):
self.items.append(item)
def pop(self):
return self.items.pop()
def is_empty(self):
return len(self.items) == 0
```
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