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Insertion Sort. By: MEENA RAWAT KV ONGC CHANDKHEDA. Importance of Sorting Insertion Sort Explanation Advantage and Disadvantage Walk through example. Why we do sorting ?. Examples of sorting: List containing exam scores sorted from Lowest to Highest or from Highest to Lowest

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## Insertion Sort

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**Insertion Sort**By: MEENA RAWAT KV ONGC CHANDKHEDA**Importance of Sorting**• Insertion Sort • Explanation • Advantage and Disadvantage • Walk through example**Why we do sorting ?**Examples of sorting: • List containing exam scores sorted from Lowest to Highest or from Highest to Lowest • List of student records and sorted by student number or alphabetically by first or last name.**Searching for an element in an array will be more efficient.**(example: looking up for information like phone number). • It’s always nice to see data in a sorted display. (example: spreadsheet or database application). • Computers sort things much faster.**Insertion Sort**• Real life example: • An example of an insertion sort occurs in everyday life while playing cards. • To sort the cards in your hand you extract a card, shift the remaining cards, and then insert the extracted card in the correct place. • This process is repeated until all the cards are in the correct sequence.**Advantage of Insertion Sort**• The advantage of Insertion Sort is that it is relatively simple and easy to implement. • This algorithm is much simpler than the shell sort, with only a small trade-off in efficiency. At the same time, the insertion sort is over twice as fast as the bubble sort. • Disadvantage • The disadvantage of Insertion Sort is that it is not efficient to operate with a large list or input size.**#include<iostream.h>**void insert_sort(int a[ ],int n) //n is the no of elements present in the array { int i, j,p; for (i=1; i<n; i++) { p=a[i]; j=i-1; //inner loop to shift all elements of sorted subpart one position towards right while(j>=0&&a[j]>p) { a[j+1]=a[j]; j- -; } //---------end of inner loop a[j+1]=p; //insert p in the sorted subpart } }

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