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All posts in Python

Count minimal number of jumps from position X to Y

Posted on: January 30, 2022 | By: Rafi Afridi

Interviewers often ask such questions for beginners level positions. This is a simple concept using while or for loop. Let say the frog is at …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:code challenge, interview question, minimal number of jumps, Python Programming, while loop

Rotate an array to the right by a given number of steps

Posted on: January 29, 2022 | By: Rafi Afridi

One of our active user of skilllx.com, send me this question (rotate an array), to solve efficiently in easy steps. The question is about array …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:code challenge, interview question, Python Programming, rotate an array, shifting array

Find longest sequence of zeros in binary of an integer

Posted on: January 29, 2022 | By: Rafi Afridi

One of my student asked me, following question about longest sequence of zeros in binary representation of an integer. You all knows the binary representation …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:code challenge, longest binary gap, python, sequence of zeros, substring

How to Sort Nested List in Python?

Posted on: December 30, 2021 | By: Rafi Afridi

To store multi-dimensional data, we use nested list (may be set, tuple or dictionary) and we need to sort that nested list. To sort nested …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:data structure, nested list, python list, sort nested list, sorting list

Function that returns Maximum Possible Value, Given an integer N

Posted on: December 21, 2021 | By: Rafi Afridi

Question: Write a function solution that, given an integer N, returns the maximum possible value obtainable by deleting one ‘5’ digit from the decimal representation …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:code challenge, coding question, interview question, python, Python Programming

Python Named Tuple; a Lightweight Object

Posted on: October 3, 2021 | By: Rafi Afridi

Python Named Tuple is a type of container like Python dictionary. Named Tuple is available in module, “collections“. It contain keys which are hashed to …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:data structure, namedtuple python, ordereddict python, python, tuple in python

Counter in Python | Python Collection for Counting Elements

Posted on: September 30, 2021 | By: Rafi Afridi

Counter in Python is one of the most widely used collection in tasks especially data analysis. It keeps the count of the elements. Simply speaking, …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:count elements, counter collection, dictionary, python dict, Python Programming

Python Ordereddict – Working with Sorted Dictionary

Posted on: September 27, 2021 | By: Rafi Afridi

We like python dictionary due to easy access of elements, easy deletion and updation, but we dislike dict because it cannot save order. Today, we …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:data structure, dictionary, ordereddict python, python dict, Python Programming

Get System Information using Platform Python library

Posted on: September 25, 2021 | By: Rafi Afridi

Sometimes it is very important to get system information on runtime in Python Code. For that we can use Platform library of Python. Platform library …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:get system information, operating system, platform, Python Programming, sys info

What’s New in Python 3.9 | Python Release 3.9

Posted on: September 18, 2021 | By: Rafi Afridi

As a Python programmer, you must know what’s new in Python 3.9? Thera are many features which makes programmer’s life easy. Some of the features …

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Filed Under: Filed Under:Python
Tagged With: Tagged With:dictionary, new features of python, new in python 3.9, Python Programming, string functions

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