﻿ C Program: Sort the elements of an array - w3resource

# C Exercises: Sort the elements of an array

## C Variable Type : Exercise-6 with Solution

Write a C program to sort the elements of an array.

Sample Solution:

C Code:

``````#include<stdio.h>     // Include the standard input/output header file.
#include<stdlib.h>    // Include the standard library header file.

// Comparator function used for qsort.
int comparetor (const void * x, const void * y)
{
return ( *(int*)x - *(int*)y );
}

int main ()           // Start of the main function.
{
int my_array[100];   // Declare an integer array 'my_array' with a maximum size of 100.
int n,i;             // Declare integer variables 'n' and 'i'.

printf("\nInput the number of elements to be stored in the array :");   // Prompt the user to input the number of elements.
scanf("%d",&n);   // Read the user's input and store it in 'n'.

printf("Input %d elements in the array :\n",n+1);   // Prompt the user to input the elements of the array.
for(i=0;i<n;i++)   // Start of a for loop to iterate over the elements of the array.
{
printf("element - %d : ",i);   // Prompt the user for the value of the current element.
scanf("%d",&my_array[i]);     // Read the user's input and store it in the current element of 'my_array'.
}

qsort (my_array, n, sizeof(int), comparetor );   // Sort the array 'my_array' using the qsort function and the 'comparetor' function.

printf("\nAfter sorting the array are :\n");   // Print a message indicating that the array has been sorted.
for (i=0; i<n; i++)   // Start of a for loop to iterate over the sorted elements of the array.
printf ("%d \n",my_array[i]);   // Print the current element of the sorted array.

return 0;   // Return 0 to indicate successful execution of the program.
}   // End of the main function.
```
```

Sample Output:

```Input the number of elements to be stored in the array :5
Input 6 elements in the array :
element - 0 : 2
element - 1 : 4
element - 2 : 3
element - 3 : 1
element - 4 : 5

After sorting the array are :
1
2
3
4
5
```

Flowchart:

C Programming Code Editor:

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

﻿