BFS & DFS
A traversal is a systematic walk which visits the nodes of the graph in a specific order. Two Types:- 1.Breadth First Traversal 2.Depth First Traversal Breadth ...
Author: Sreekumar Kj
Sreekumar (KJ) has been a hobby programmer from school days. Codemarvels is his personal blog from the year 2010, where he writes about technology, philosophy, society and a bit about physics.
He now runs a conversational AI company - DheeYantra - focusing his efforts to help businesses improve operational efficiency using digital employees powered by AI.
All about Factorial(!)
In mathematics,the factorial of any positive number N is the product of the positive integers less than or equal to N.It is denoted by ‘N!’. Example- 5!= 5*4*3*...
Android development primer: Creating layouts for Alert Dialog
Don’t like the traditional way in which the Alert Dialog appears? Would you rather have a custom layout for it? Well, not a problem at all. In this post I will ...
Android development primer: Creating Alert Dialogs in Android
In Android devices, probably the thing that we come across most frequently is Alert Dialog Boxes. If you are not familiar with an Alert Dialog Box, here’s what ...
Binomial Coefficient
Binomial Coefficient is represented by nCk which means number of ways of choosing k objects from n objects.It is the coefficient of x^k term in the polynomial e...
Android development primer: Know the AndroidManifest.xml
Enough programming. Let’s take a break and look into one of the vital components of any Android application, the AndroidManifest.xml file. Every Android applica...
Longest Increasing Sub-sequence
Given a sequence of numbers,we need to find the longest increasing sub-sequence from the given input(not necessary continuous). Example- Input- 1 10 4 5 3 2 9 1...
N Queens Problem (Backtracking)
Given a chess board of size n*n,the task is to find all the ways to place n queens so that they don’t attack each other. In chess, a queen can move as far as sh...
Android development primer: Creating Options Menu in Android – Part IV
This is the last post in the Creating Options Menu in Android section. I told you in the first post of this section, that the Options Menu layout can also be c...
Android development primer: Creating Options Menu in Android – Part III
Till now we have seen how to create and customize our Options Menu. In this post I will show you how to actually make use of the Options Menu to do something i....