# How does the sort function work?

## How does the sort function work?

When the sort() function compares two values, it sends the values to the compare function, and sorts the values according to the returned (negative, zero, positive) value. If the result is negative a is sorted before b . If the result is positive b is sorted before a .

## How do I use the sort function in Excel?

To sort a range:

1. Select the cell range you want to sort. ...
2. Select the Data tab on the Ribbon, then click the Sort command.
3. The Sort dialog box will appear. ...
4. Decide the sorting order (either ascending or descending). ...
5. Once you're satisfied with your selection, click OK.
6. The cell range will be sorted by the selected column.

## What is sort command in Excel?

The Excel SORT function sorts the contents of a column, columns (range) or array in ascending or descending order. The syntax is: =SORT(array, [sort_index], [sort_order], [by_col]) array is the range or array containing the values you want sorted. sort_index is optional and indicates the row or column to sort by.

## What is the use of sorting feature in Excel?

Excel's Sort feature makes it easy to rearrange the records or even the fields in your table of data or data list.

## Why do we use sort feature?

Sort is a term used to describe the process of organizing data in a particular order allowing for information to be found easier. For example, names and contact information may be sorted in alphabetical order to allow the person looking for a name to see if it's available.

## What is sorting very short answer?

Sorting is any process of arranging items systematically, and has two common, yet distinct meanings: ordering: arranging items in a sequence ordered by some criterion; categorizing: grouping items with similar properties.

## Which is best sorting technique?

The time complexity of Quicksort is O(n log n) in the best case, O(n log n) in the average case, and O(n^2) in the worst case. But because it has the best performance in the average case for most inputs, Quicksort is generally considered the “fastest” sorting algorithm.

## What is memory heap?

A memory heap is a location in memory where memory may be allocated at random access. Unlike the stack where memory is allocated and released in a very defined order, individual data elements allocated on the heap are typically released in ways which is asynchronous from one another.

## What is a heap programming?

In certain programming languages including C and Pascal , a heap is an area of pre-reserved computer main storage ( memory ) that a program process can use to store data in some variable amount that won't be known until the program is running. ... In Pascal, a subheap is a portion of a heap that is treated like a stack.

## What is Max heap property?

In computer science, a heap is a specialized tree-based data structure which is essentially an almost complete tree that satisfies the heap property: in a max heap, for any given node C, if P is a parent node of C, then the key (the value) of P is greater than or equal to the key of C.

## Does priority queue sort?

A PriorityQueue is what is called a binary heap. It is only ordered/sorted in the sense that the first element is the least. In other word, it only cares about what is in the front of the queue, the rest are "ordered" when needed.

## Which one of the following is a variation of heap sort?

Which one of the following is a variation of Heap sort? Explanation: Smooth sort is a variation of Heap sort. Smooth sort has O(nlogn) worst case time complexity like Heap sort. But Smooth sort takes O(n) time to sort the nearly sorted input array.

## Why heap sort is not used?

Heapsort is not stable because operations on the heap can change the relative order of equal items. Not all Quicksort implementations are stable. ... But Quicksort will execute faster because its constant factors are smaller than the constant factors for Heapsort.

## Does heap sort sort in place?

A run of heapsort sorting an array of randomly permuted values. In the first stage of the algorithm the array elements are reordered to satisfy the heap property. ... Heapsort is an in-place algorithm, but it is not a stable sort.

## What is the first action in an insertion sort?

To perform an insertion sort, begin at the left-most element of the array and invoke Insert to insert each element encountered into its correct position. The ordered sequence into which the element is inserted is stored at the beginning of the array in the set of indices already examined.