Sorting on several keys, Data Structure & Algorithms

Assignment Help:

Thus far, we have been considering sorting depend on single keys. However, in real life applications, we may desire to sort the data on several keys. The simplest instance is that of sorting a deck of cards. The first key for sorting is the suit-clubs, diamonds, spades and hearts. Then, inside each of suit, sorting the cards into the ascending order from Ace, twos to king. Thus this is a case of sorting on 2 keys.

Now, it can be done in two ways.

1 •   Sort 52 cards within 4 piles according to the suit.

   •   Sort each of 4 piles according to face value of the cards.

2 •   Sort 52 cards within 13 piles according to face value.

   •   Stack these piles in order and then sort into 4 piles depend on suit.

The first method is called the as MSD (Most Significant Digit) sort & second method is called as the LSD (Least Significant Digit) sort. Digit stands for key. Although they are called as sorting methods, MSD & LSD sorts only choose the order of sorting. The sorting could be done by any of the sorting methods discussed in this unit.


Related Discussions:- Sorting on several keys

Binary search, Write the algorithm for Binary search. Also apply this algo...

Write the algorithm for Binary search. Also apply this algorithm on the following data. 22, 44, 11, 88, 33, 55, 77, 66

Explain in detail about the abstract data type, Abstract data type The ...

Abstract data type The thing which makes an abstract data type abstract is that its carrier set and its operations are mathematical entities, like geometric objects or numbers;

Use a random number generator to create 10 numbers, Use a random number gen...

Use a random number generator to create 10 numbers between 1 and 1000 and store them in 2 different arrays.  The first array should contain the numbers as they are generated.  The

Representation of data structure in memory, Representation of data structur...

Representation of data structure in memory is known as: Abstract data type

Amortized algorithm analysis, In the amortized analysis, the time needed to...

In the amortized analysis, the time needed to perform a set of operations is the average of all operations performed. Amortized analysis considers as a long sequence of operations

Explain stacks, What are stacks? A stack is a data structure that organ...

What are stacks? A stack is a data structure that organizes data similar to how one organizes a pile of coins. The new coin is always placed on the top and the oldest is on the

Determine the comparison of gouraud and phong shading, Comparison of Gourau...

Comparison of Gouraud and Phong Shading Phong shading requires more calculations, but produces better results for specular reflection than Gouraud shading in the form of more r

How do you find the complexity of an algorithm, How do you find the complex...

How do you find the complexity of an algorithm?  Complexity of an algorithm is the measure of analysis of algorithm. Analyzing an algorithm means predicting the resources that

Algorithm, Write an algorithm for compound interest.

Write an algorithm for compound interest.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd