### Image Rotation LeetCode Interview Question

February 20, 2021

Given an image represented by an NxN matrix, where each pixel in the image is 4 bytes, write a method to rotate the image by […]

### Coding Interview Question – Design Tic Tac Toe Game

February 1, 2021

Many big tech companies like Amazon, Apple, Google ask design question to test client side development skill. Question: Create Tic Tac Toe Game. First we […]

### Coding Interview Question: String Permutations.

February 1, 2021

Many Big Tech Companies like Google, Facebook, Amazon ask coding question about string permutations. In this post, we are covering the logical solution of string […]

### Write the code to find the balance point of an Array.

April 27, 2020

Question: You have given an array of integer. You need to create the algorithm which finds the balance point in the given array and return […]

### Coding Challenge – Find out the continuous sum

April 2, 2020

Question: Given a list of non-negative numbers and a target integer k, write a function to check if the array has a continuous subarray of size at least 2 […]

### Coding Challenge – Three Sum Target. Find a triplet that sum to a given target value

March 19, 2020

Common Interview Coding question and answer. Coding challenge is very frequent in big tech companies interview such as Amazon, Facebook or Google. Take a look […]