Code

Python

String Permutation in Python without itertools

Write a program to find and get all the string Permutation in Python without itertools.

Binary Tree

Find Parent of a Node in Binary Tree | Python Code

How to write a program to find parent of a node in binary tree? Solved using Python code?

CAPTCHA

How to Read and Solve Captcha Using Python?

How to write code to solve captcha using Python? Example for Python captcha solver tesseract and captcha verification.

interview questions

35 Java Interview Questions for Freshers and Experienced

Java interview questions for freshers and experienced candidates asked in 2023.

interview

Design Music Player with Shuffle Feature | Python Code

Write a Python program to design music player. Spotify shuffle songs. Asked in the design round interview.

Code

Write a Program to Find GCD of Two Numbers

What is Greatest Common Divisor? Write a program to find GCD of two numbers? Explain with code and example.

database

Top 10 SQL Query Concepts for Job Interview

You should know these SQL concepts for job interview whether you are freshers or experienced candidate.

coding challenge

Find the First Unique Element in a Stream of Characters at any Given Point

Write a program to find the first unique element in a stream of characters at any given point. Competitive coding challenge to solve in Python, C/C++ and Java.

coding challenge

Flip Equivalent Binary Trees | Coding Challenge

Check Flip Equivalent Binary Trees. Coding challenge solved in C/C++, Python, Java.