Leetcode has become a de-facto standard for preparing your coding interview. The leetcode has a very useful feature – which is mocking interview. You can mock coding interviews for …
The Harddrives failing rate is increasing year by year – and according to statistics, most harddrives’s Annualized Failure Rate (AFR) is between 0 to 2%. It is common that …
Consider the following function to make changes to an array of numbers: func modify(arr, op, idx) { // add by 1 index idx if (op == 0) { arr …
My another old hardrive is suddenly dead without any notice. Luckily, most of the files are on Cloud – and I can just replace it with a new drive …
Use digit 1 to 8 only once and fill the below grid: The arithmetic should proceed exactly from left to right and top to the bottom. Bruteforce Algorithm to …
Return all non-negative integers of length N such that the absolute difference between every two consecutive digits is K. Note that every number in the answer must not have …