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The data to be sorted is broken into smaller and smaller chunks, then each individual chunk is sorted, then the chunks are merged together and sorted

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Q: How divide and conqure approach is used in merge sort?
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What is the basic operation in merge sort?

divide and conquer


Why merge sort is adaptive?

Merge sort is adaptive because it can take advantage of "runs" that are already sorted. We call this algorithm the natural merge sort. Consider the traditional top-down merge sort: Start : 3421758906 Divide: 34217|58906 Divide: 342|17|589|06 Divide: 34|2|1|7|58|9|0|6 Divide: 3|4|2|1|7|5|8|9|0|6 Merge: 34|12|57|89|06 Merge: 1234|5789|06 Merge 12345789|06 Merge: 0123456789 With natural merge sort, we get the following: Start : 3421758906 Divide: 34217|58906 Divide: 342|17|589|06 Divide: 34|2|17|589|06 Merge: 234|15789|06 Merge: 12345789|06 Merge: 0123456789 As you can see, there is one less division and one less merge. However, note that the final division only divides one run (342), all the others are "already sorted" and don't need to be divided any further. With fewer (and longer) runs, there are fewer merges to perform.


Which key element will be best for merge sort and why?

There is no key element in a merge sort. Unlike quick sort which requires a key element (a pivot) to recursively divide a subset into two subsets, merge sort simply divides a subset into subsets of 1 element and merges adjacent subsets together to produce sorted subsets. When there is only one subset remaining, the subset is fully sorted.


What is the difference between shell sort and merge sort?

shell uses an odd number,merge uses an even number?


Different types of sorting techniques in c language?

types of sorting in c language are: insertion sort selection sort bubble sort merge sort two way merge sort heap sort quick sort

Related questions

What is the basic operation in merge sort?

divide and conquer


Why merge sort is adaptive?

Merge sort is adaptive because it can take advantage of "runs" that are already sorted. We call this algorithm the natural merge sort. Consider the traditional top-down merge sort: Start : 3421758906 Divide: 34217|58906 Divide: 342|17|589|06 Divide: 34|2|1|7|58|9|0|6 Divide: 3|4|2|1|7|5|8|9|0|6 Merge: 34|12|57|89|06 Merge: 1234|5789|06 Merge 12345789|06 Merge: 0123456789 With natural merge sort, we get the following: Start : 3421758906 Divide: 34217|58906 Divide: 342|17|589|06 Divide: 34|2|17|589|06 Merge: 234|15789|06 Merge: 12345789|06 Merge: 0123456789 As you can see, there is one less division and one less merge. However, note that the final division only divides one run (342), all the others are "already sorted" and don't need to be divided any further. With fewer (and longer) runs, there are fewer merges to perform.


Which key element will be best for merge sort and why?

There is no key element in a merge sort. Unlike quick sort which requires a key element (a pivot) to recursively divide a subset into two subsets, merge sort simply divides a subset into subsets of 1 element and merges adjacent subsets together to produce sorted subsets. When there is only one subset remaining, the subset is fully sorted.


Who is best merge sort or insertion sort?

Merge sort is good for large data sets, while insertion sort is good for small data sets.


What is the difference between shell sort and merge sort?

shell uses an odd number,merge uses an even number?


Different types of sorting techniques in c language?

types of sorting in c language are: insertion sort selection sort bubble sort merge sort two way merge sort heap sort quick sort


The easy logic of Merge sort in C?

Top down merge sort is the easy way of merge sort in C language . It is used to derived o(n log n) algorithm . This is in par with the other methods.


Is merge sort external sorting?

Can be. (Meaning: you can merge sorted files without loading them entirely into the main memory.)


Why quick sort better than merge sort?

it has less complexity


Limitations of merge sort and quick sort?

Comolexity Not efficent big data


How would you sort a linked list?

Use merge sortUse tree sort


How do you merge and sort an array using PHP?

To merge and sort an array in PHP you need to use the array_merge() and sort() functions like shown in the example below: <?php $array1 = array(1, 5, 3, 9, 7); $array2 = array(8, 2, 6, 4, 0); // merge the arrays $merge = array_merge($array1, $array2); // 1, 5, 3, 9, 7, 8, 2, 6, 4, 0 // sort the array sort($merge); // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ?>