Set Mismatch – Find the Duplicate and Missing Number in Array
Given an array of integers of size N. The array should originally store numbers from 1 to N, however, during transmission, one of the number is duplicated to another …
Embracing HF20! My Steem Witness Node Upgraded to v0.20.2 on a new Server!
Around 8 hours of replay – my witness has been upgraded to v0.20.2 and has already produced a few blocks. My witness page My backup server now serves the …
All Steem Witnesses Should Now All Upgrade to 20.2 (Hardfork 20)
The HF20 is scheduled on 25/September and all witnesses by updating to 20.2 cast their votes of HF20 (hard fork) From @drakos online tool, we can see already 17 …
How to Search in 2D Sorted Matrix?
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sorted from left …
Tips For Keeping Your VPS Flawless
More often than not, it bugs you how to maintain a VPS once it is set up and running. It is somewhat difficult to come up with a right …
C++ Function to Reshape the Matrix
In MATLAB, there is a very useful function called ‘reshape’, which can reshape a matrix into a new one with different size but keep its original data. You’re given …