Archive for the 'Logic Builders' Category

Short Term Memory

nirav May 8th, 2007

Found this via Braingle’s RSS feed:

We have talked about how the average short-term memory can only hold around 7 pieces of information. Here is a test to see how good your short-term memory is.

Slowly read each line once and then look away and try to recall the numbers. The first few should be easy. Once you get to 7 or 8 digits, you will start to have a very difficult time.

4 8 6
2 5 7 8
5 8 2 5 7
9 1 3 4 0 6
6 7 2 8 4 3 8
1 9 8 3 0 7 5 2
0 9 3 7 0 4 6 9 1

I could easily do upto 6 numbers, but then had to use some techniques to remember longer series. The way I normally do is visualize the numbers and repeat them out from the visual memory! This is good for short term retention! I would have to associate the numbers (rather the combination of numbers) to some funny thing for long term retention!

How far can you go?

Measure the path

nirav April 26th, 2006

In Logic Builder this time, I am going to ask you to flex your mind muscles a bit to think of the input parameters for the problem, rather than the main solution.

The problem is: How can we measure the path a laser beam has to travel if it wanted to reach from the inner most track to the outer most. ie. from the beginning of the disk to the end. What all parameters will we need to calculate this correctly? Define these parameters and write a program to calculate the length of this path in centimeters.

Keyword Generator

nirav April 19th, 2006

Here’s another Logic Builder!

Write an application that will take a block of text as input and generate a list of keywords from it. You can make the app as simple or as complex as you want.

A few notes:

  • You can remove words with less than 3 characters
  • You can remove common words
  • You can remove verbs, and use only nouns
  • You can use some third party webservice to generate the keywords
  • You can remove duplicates