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quick sort has a best case time complexity of O(nlogn) and worst case time complexity of 0(n^2).
the best case occurs when the pivot element choosen as the center or close to the center element of the list.the time complexity can be derived for this case as:
t(n)=2*t(n/2)+n.
whereas the worst case time complexity for quick sort happens when the pivot element is towards the end of the list.the time complexity for this can be derived using the recurrence eqn:
t(n)=t(n-1)+n
What else can I help you with?
What is the benefit of randomization in quick sort algorithm?
You don't waste time computing a pivot.
When is quick sort better than selection sort?
Because the quick sort can be used for large lists but selection not. selection sort is used to find the minimum element ,but quick choose element called pivot and move all smaller nums before it & larger after it.
Divide-and-Conquer to sort numbers using quick sort?
Yes, that's how quick-sort works.
18 A list is ordered from smaller to largest when a sort is called Which sort would take the longest time to execute?
Quick Sort
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 benefit of randomization in quick sort algorithm?
You don't waste time computing a pivot.
When is quick sort better than selection sort?
Because the quick sort can be used for large lists but selection not. selection sort is used to find the minimum element ,but quick choose element called pivot and move all smaller nums before it & larger after it.
Can A Pivot Table be sorted and filtered?
Yes, you can both sort and filter a pivot table.
How can you sort by two values on a pivot table on excel 2010 e.g. Sorting by points and then goal difference in a football league table?
If you double click on the last columns header you can open the pivot table window. Then click on Advanced then in the new window and select the Autosort option using the fields you need. You can do a league table in an ordinary table in Excel, not a pivot table. You can use an advanced sort and use the fields you want to do your sort on, choosing them in the sequence you mentioned. That may be easier.
Divide-and-Conquer to sort numbers using quick sort?
Yes, that's how quick-sort works.
How do you get text in a pivot table?
If you select the main text headings, they will be included in the pivot table as headings. You can type into any cell in a pivot table that has text, though not ones that have values.
What is the recurrence relation for the quick sort algorithm and how does it affect the time complexity of the sorting process?
The recurrence relation for the quick sort algorithm is T(n) T(k) T(n-k-1) O(n), where k is the position of the pivot element. This relation affects the time complexity of the sorting process because it represents the number of comparisons and swaps needed to sort the elements. The time complexity of quick sort is O(n log n) on average, but can degrade to O(n2) in the worst case scenario.
How do you color in pivot?
To color in pivot look at the menu at left and select the "colour" bottom and then just chose one of them or make a custom coulor //thanks, badcops4455 pivot animator on youtube
18 A list is ordered from smaller to largest when a sort is called Which sort would take the longest time to execute?
Quick Sort
Is Quick Sort an in-place sorting algorithm?
Yes, Quick Sort is an in-place sorting algorithm.
When quick sort is preferred?
When you want to sort an array.
Which sorting algorithm is more efficient for large datasets: quick sort or selection sort?
Quick sort is more efficient for large datasets compared to selection sort.
