Author: Aniruddha Chaudhari

coding challenge

Validate IP Address using RegEx in Python

How to validate IP address using regex in Python? Regular expression explain with the coding example and program.

Python

Python RegEx | Regular Expression Tutorial with Examples

What is Python RegEx? Explain regular expression in Python with coding examples. RE methods- search, findall, split and sub function.

coding challenge

Longest Balanced Substring | Maximum Length of Balanced Parentheses

Find the longest balanced substring. Write a program to find the maximum length of balanced parentheses.

coding challenge

Python Tricks for Competitive Programming

Python Tricks for Competitive Programming for cracking coding interviews.

coding challenge

[Solved] Minimum Number of Coins Required to Make Given Amount

Write a Python program to calculate and to find the minimum number of coins required to make given amount value. You can also solve in C/C++, Java…

coding challenge

[Solved] Merge Overlapping Intervals in Python, C/C++ and Java

Write a program to Merge Overlapping Intervals in Python, C/C++ and Java. Algorithm and solution explained with coding example.

MySQL

SQL Join (Inner, Left, Right, Full) with Example

SQL join clause explained with examples. SQL query for Inner, Left, Right and Full join. Interview questions on table Join operations.

coding challenge

Find an Index of Array Such that Sum of Left and Right Subarray is Equal

How to find an index of array such that sum of left and right subarray is equal? Split the array into equal sum subarray.

git

How to Revert Git Commit already Pushed to Remote Repo?

Command to revert git commit that has already pushed to the remote repository? How to undo commit command line in Git?