C Exercises: Sort elements of array in ascending order

Last update on March 18 2025 13:23:55 (UTC/GMT +8 hours)

11. Sort Array Ascending

Write a program in C to sort elements of an array in ascending order.

Visual Presentation:

Sample Solution:

C Code:

#include <stdio.h>

void main()
{
    int arr1[100];
    int n, i, j, tmp;

    // Prompt user for input
    printf("\n\nSort elements of array in ascending order:\n");
    printf("----------------------------------------------\n");
    printf("Input the size of array : ");
    scanf("%d", &n);

    // Input elements for the array
    printf("Input %d elements in the array :\n", n);
    for (i = 0; i < n; i++)
    {
        printf("element - %d : ", i);
        scanf("%d", &arr1[i]);
    }

    // Sorting elements in ascending order using the Bubble Sort algorithm
    for (i = 0; i < n; i++)
    {
        for (j = i + 1; j < n; j++)
        {
            if (arr1[j] < arr1[i])
            {
                // Swap elements if they are in the wrong order
                tmp = arr1[i];
                arr1[i] = arr1[j];
                arr1[j] = tmp;
            }
        }
    }

    // Print sorted elements in ascending order
    printf("\nElements of array in sorted ascending order:\n");
    for (i = 0; i < n; i++)
    {
        printf("%d  ", arr1[i]);
    }
    printf("\n\n");
}

Sample Output:

sort elements of array in ascending order :                                                                   
 ----------------------------------------------                                                               
Input the size of array : 5                                                                                   
Input 5 elements in the array :                                                                               
element - 0 : 2                                                                                               
element - 1 : 7                                                                                               
element - 2 : 4                                                                                               
element - 3 : 5                                                                                               
element - 4 : 9                                                                                               
                                                                                                              
Elements of array in sorted ascending order:                                                                  
2  4  5  7  9 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C program to sort an array in ascending order using bubble sort without using built-in functions.
• Write a C program to sort an array using selection sort and then print the sorted array.
• Write a C program to sort an array in ascending order using recursion.
• Write a C program to sort an array in ascending order and then remove duplicate elements.

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