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:


	int comparetor (const void * x, const void * y)
		return ( *(int*)x - *(int*)y );
	int main ()
	int my_array[100];
	int n,i;
       printf("\nInput the number of elements to be stored in the array :");
       printf("Input %d elements in the array :\n",n+1);
	      printf("element - %d : ",i);
		qsort (my_array, n, sizeof(int), comparetor );
       printf("\nAfter sorting the array are :\n");
		for (i=0; i<n; i++)
			printf ("%d \n",my_array[i]);
		return 0;

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 :                                                                                 


C Exercises Flowchart: Sort the elements of an array

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C Programming: Tips of the Day

How I can print to stderr in C?

The syntax is almost the same as printf. With printf you give the string format and its contents i.e.:

printf("my %s has %d chars\n", "string format", 30);

With fprintf it is the same, except now you are also specifying the place to print to:

File *myFile;
fprintf( myFile, "my %s has %d chars\n", "string format", 30);

Or in your case:

fprintf( stderr, "my %s has %d chars\n", "string format", 30);

Ref : https://bit.ly/3v5U8Zq