Question

Write C program that reorders elements of an array of integers such that the new order is in descending order (first number being the largest). Must have a main function and a swap function.

- int main() will declare an array with the values { 32, 110, 79, 18, 22, 2}. This array will be passed to the swap function.

- the void swap function will perform the necessary operations to reorder the elements of the array.

- After swap() is finished, have main() print the original array to show the new element order.

Answer 1

Code:

#include<stdio.h>
void swap(int array[])
{
   int n=6,i=0,j=0;/*initialized the variables*/
   for(i=0;i<n;i++)
   {
       for(j=0;j<n-i-1;j++)
       {/*in this loop we sort the array in the descending order*/
           if(array[j]<array[j+1])
           {/*Here we swap the array of the element is greater than
               the previous elemet*/
               int x = array[j];
       array[j] = array[j + 1];
       array[j + 1] = x;  
           }  
       }
   }
   printf("New order of elements: ");
   for(i=0;i<n;i++)
   {
       printf("%d ",array[i]);
   }
   /*HEre we print the array after sorting in descending order*/
}
int main()
{
   int arr[6]={32,110,79,18,22,2},i;/*initialized the variables*/
   printf("Original array: ");
   for(i=0;i<6;i++)
   {
       printf("%d ",arr[i]);
   }/*Printing the array before calling the function*/
   printf("\n");
   swap(arr);
   /*Calling the function*/
}

Output:

Indentation: