Graphic Designs for ACM NIT Surat




During pre-final year of Computer Engineering at NIT Surat, I took over the responsibility of graphics/poster design activities of ACM Chapter NIT Surat. Below follows my work and experience during their creation.

EPIPHANY! Online Coding Competition of SVNIT. This one's quite geeky actually. Solely based on idea generation. All I did is take a screenshot of my terminal window, added some spices and peppers from Iron Man, and final touch using idea of console based applications.

Programming Contest Poster

Orientation Programme poster for ACM Chapter - NIT Surat. Idea was to connect every single student irrespective of his/her branch. I used several human shapes and connected them with ACM logo. That's it! Implementation was a little tough though!


Dynamic Programming or Memoization : Simple optimizing Concept yet Effective




Dynamic Programming or Memoization is a well known technique for optimization.  It is just a method that remembers your previously calculated results and stores it somewhere so that when time comes you can use it again.

Just to begin with, a straightforward example of Memoization is calculation of Factorials. When we calculate Factorial of 5, i.e.

5! = 1*2*3*4*5 = 120

Now when you're asked to calculate Factorial of 6, a normal human being wouldn't go on like 1*2*3*4*5*6 rather he would think that "Well, I just calculated upto 5! why not simply multiply 6 to the answer of 5! " This is exactly what we are going to make our computers to do.

So, How do I make computer to remember pre-calculated results?
Answer is as simple as the question, just store them at a particular location in any array/list/vector.

Have a look at this simple Python implementation for memoized Factorial.

C/C++ and Python Program to find GCD of a list of numbers




A very easy question though, yet thought posting about it thinking it may improve my explanation prowess.

Lets get back to old school math, how did we find Greatest Common Divisor (GCD) or you may call it Highest Common Factor(HCF) of two numbers?

Assuming you know primary Maths, I'd proceed further.

Lets take an example before we go ahead.

Find GCD of 54 and 24.

Divisors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54.

Divisors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24.

Common divisors of 54 and 24: 1, 2, 3, 6

The greatest of these is 6.

Hence gcd(54,24) = 6

Okay, lets write an algorithm for this. Well, one would say, there's nothing to think of any algorithm, things are crystal clear. Find out the factors of two numbers, then find common factors and then the largest of them.

But brother! There exists a better algorithm. Our Father of Geometry, Euclid, left us an algorithm already. We simply have to implement it.

Fast Power Algorithm: C/C++ and Python Code




In competitive programming, traditional way to finding power may not work sometimes.

By traditional way I mean if we have to find 2^10 (just as an example).

Or else simply by using library function after including math.h (in C) we can do it by pow(2,10)

Well, but this doesn't help us anymore when it comes to finding base to the power (base^power) where power could be anything in the range 0 to 1000000 or even greater value, same goes for base

Whilst you may think it impractical but in competitive programming questions ask us find Modulus of the answer by any prime number such as 1000000007, just to make sure answer remains in range of int data type.

i.e. pow(2,100)%1000000007 = 976371285

Lets come to the point and discuss what you have come for :)

Fast Algorithm:

result = 1
If power is odd:
    result = result*value

value = value*value
power = power/2


Yeah, I know, above algorithm more looks like a code & was nothing but a bouncer. ;)

New 2013 RSS Facebook Twitter Google+ Buttons with Hover Effect




RSS Facebook Twitter HoverA new share button widget for 2013 with RSS Facebook Twitter and Google+ buttons (YouTube too on request)

Tried to make as looks as simple as possible like Windows 8 :p

It'll consume a very little space of your blog & can even be placed in a size of search bar's area :)

Qualities of the gadget are same as we had in earlier versions v1, v2. These versions were colored. But this one is Black & White for education or decent tech blogs.

Disqus v/s Intense Debate-CommentLuv




Disqus v/s IntenseDebate
In last couple of months I've been experimenting on the commenting platforms. Blogger Comment Form is now less preferred since Disqus and CommentLuv from IntenseDebate have taken over. Which is the best commenting platform for Blogger?

Though there are certain factors to consider whether or not to go with Disqus or IntenseDebate's CommentLuv.

Here I've covered some of the points that came across my mind while choosing one of them.

Sub-Domain/Custom Domain: Advantages of Custom Domain




Okay firstly I'll clear that What is a custom domain? and What is Subdomain?

Subdomain:

blogger subdomainThe free domain that blogspot provides you with the extension .blogspot.com is a subdomain.

Actually the blogspot.com itself is a domain and when you sign up to create a blog you'll be prompted for a subdomain like "SUB-DOMAIN".blogspot.com
custom domain
Image Credit: joomla365.com
Got it? Proceeding further with a 'Yes' :-)

Custom Domain:

Its a Top Level Domain (TLD) with extension .com .org .net .biz  and many more like .in(regionally targeted for India) .us .me(for personal site) etc.


Now we'll discuss the Advantages of having a Custom Domain for your blog.
older post