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[R22] Data Structures Lab Manual [ Lab Programs ]


Aim:

Write a program that implements Quick sort sorting methods to sort a given list of integers in ascending order

Solution :

C program that implements Quick sort sorting methods to sort a given list of integers in ascending order

Quick sort
#include <stdio.h>

// Function to swap two elements
void swap(int *a, int *b) {
    int t = *a;
    *a = *b;
    *b = t;
}

void quicksort(int number[25],int first,int last)
{
    int i, j, pivot, temp;
    if(first<last)
    {
        pivot=first; // Choose the first element as pivot
        i=first;
        j=last;
        while(i<j)
        {
            while(number[i]<=number[pivot]&&i<last)
            i++;
            while(number[j]>number[pivot])
            j--;
            if(i<j) // swap two elements
            {
                swap(&number[i], &number[j]);
            }
        }
		// Swap the pivot element with the element at i+1 position
		swap(&number[pivot], &number[j]);
		// Recursive call on the left of pivot
        quicksort(number,first,j-1);
		// Recursive call on the right of pivot
        quicksort(number,j+1,last);
    }
}
int main()
{
    int i, count, number[25];
    printf("How many elements are u going to enter?: ");
    scanf("%d",&count);
    for(i=0;i<count;i++)
    {
        printf("\nEnter %d element: ", i+1);
        scanf("%d",&number[i]);
    }
    quicksort(number,0,count-1);
    printf("Order of Sorted elements: ");
    for(i=0;i<count;i++)
    printf(" %d",number[i]);
    return 0;
}

OUTPUT
How many elements are u going to enter?: 10
Enter 1 element: 3
Enter 2 element: 6
Enter 3 element: 9
Enter 4 element: 8
Enter 5 element: 5
Enter 6 element: 2
Enter 7 element: 1
Enter 8 element: 4
Enter 9 element: 7
Enter 10 element: 10
Order of Sorted elements:  1 2 3 4 5 6 7 8 9 10

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Data Structures Lab Programs

1) Write a program that uses functions to perform the following operations on singly linkedlist.:
i) Creation ii) Insertion iii) Deletion iv) Traversal
View Solution

2) Write a program that uses functions to perform the following operations on doubly linkedlist.:
i) Creation ii) Insertion iii) Deletion iv) Traversal
View Solution

3) Write a program that uses functions to perform the following operations on circular linkedlist.:
i) Creation ii) Insertion iii) Deletion iv) Traversal
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4) Write a program that implement Stack (its operations) using Array View Solution

5) Write a program that implement Stack (its operations) using Linked List (Pointer) View Solution

6) Write a program that implement Queue(its operations) using Array View Solution

7) Write a program that implement Queue (its operations) using Linked List (Pointer) View Solution

8) Write a program that implements Quick sort sorting methods to sort a given list of integers in ascending order View Solution

9) Write a program that implements Merge sort sorting methods to sort a given list of integers in ascending order View Solution

10) Write a program that implements Heap sort sorting methods to sort a given list of integers in ascending order View Solution

11) Write a program to implement the tree traversal methods using Recursive View Solution

12) Write a program to implement the tree traversal methods using Non Recursive View Solution

13) Write a program to implement Binary Search Tree (its operations) View Solution

14) Write a program to implement AVL Tree (its operations) View Solution

15) Write a program to implement Red - Black Tree (its operations) View Solution

16) Write a program to implement B Trees (its operations) View Solution

17) Write a program to implement B+ Trees (its operations) View Solution

18) Write a program to implement the graph traversal methods (Breadth First Search) View Solution

19) Write a program to implement the graph traversal methods (Depth First Search) View Solution

20) Write a program to Implement a Pattern matching algorithms using Boyer- Moore View Solution

21) Write a program to Implement a Pattern matching algorithms using Knuth-Morris-Pratt View Solution