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Bubble sort is a sorting algorithm that compares 2 adjacent items at a time, starting from the beginning of a list, and swapping them if they are out of sequence. Each comparison gradually moves the largest item to the end of the list (likened to a bubble making its way to the surface of water). After n*n passes, all the items will be sorted. The big O for a standard bubble sort is therefore O(n*n).

The algorithm can be improved somewhat. Since it is clear that the last item is sorted on each pass, the unsorted set can be reduced by 1 element on each pass. Moreover, since the final swap on each pass indicates that everything from that point on is already sorted, the unsorted set can often be reduced by more than 1 element on each pass. For an already sorted list, the worst case is reduced to O(n), constant time.

For small sets of data, perhaps 10 to 20 items, the bubble sort is reasonably efficient, especially on partially sorted lists. However the insert sort algorithm offers similar or better performance on average. With larger sets, the quick sort algorithm is hard to beat, but is let down by inefficiencies when dealing with partially sorted lists. Hybrid sorts can improve things a little, however, there is no efficient way to check the state of a list to determine the most efficient algorithm to use at any given point.

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Bubble sort is also known as sinking sort.

what are advantages or disadvantages of bubble sort , quick sort or merge sort

The cyclomatic complexity of bubble sort is 4.

Virtually any sorting algorithm is better than bubble sort. Bubble sort is an example of how NOT to write an algorithm.

O(n2) The complexity of bubble sort is O(n(square))

Heap sort will be much faster in most situations, though bubble sort will be easier to understand the code flow.

Never.

ramesh

The algorithm and psuedocode of bubble sort can be set at zero and this is a part of the computer programming protocol.

distinguish between selection sort and exchange sort

Dota 2

Yes

Yes.

Bubble sort is an "in place" algorithm. Other than a temporary "switch" variable, no extra space is required.

The worst case time-complexity for bubble sort algorithm is O(n*n).

Bubble sort and insertion sort both have the same time complexity (and space complexity) in the best, worst, and average cases. However, these are purely theoretical comparisons. In practical real-world scenarios, insertion sort (or any other sort, for that matter) will almost always be the better choice over a bubble sort.

Binary sort and bubble sort are two.

You would sort the given elements of an array by a bubble sort or heap sort code!!

Quick Sort is an "average" performing sorting algorithm; there are better algorithms out there, but it is considered the best of the "learner's algorithms" (generally implied to be quick sort, bubble sort, selection sort, and gnome sort). It has a medium-length average sorting time, which is faster than bubble sorting and gnome sorting, but also has a medium-length best-case sorting time, with bubble sorting and gnome sorting beating it speed-wise. It also has a higher memory overhead than in-place swapping algorithms such as bubble sort and gnome sort.

Both are of the same efficiency... -Manu-

External sorting: - Merge sort - Two way merge sort. Internal sorting: - Heap sort - Bubble sort - Tree sort - quick sort - shell sort - Insertion sort External sorting: - Merge sort - Two way merge sort. Internal sorting: - Heap sort - Bubble sort - Tree sort - quick sort - shell sort - Insertion sort

Bubble sort has no practical applications other than that it is often cited as an example of how not to write an algorithm. Insert sort is the best algorithm for sorting small lists of items and is often used in conjunction with quick sort to sort larger lists. Like insert sort, bubble sort is simple to implement and is a stable sort (equal items remain in the same order they were input). However, insert sort uses copy or move operations rather than swaps (which is actually three operations per swap) and is therefore quicker. The only time a bubble sort will work quicker than insert sort is when the array is already sorted, which renders the entire algorithm redundant. A modified algorithm that specifically tests if an array is sorted or not would be more efficient than a single-pass bubble sort.

The bubble sort algorithm can be applied to an array of characters. Every character can be translated to an integer equivalent via the ascii table

O(n^2)

O(n*n)