C program to sort given N numbers

Write a C program to sort given N elements using SELECTION sort method *
 * using functions                                                        *
 * a) To find maximum of elements  *
 * b) To swap two elements  */

#include <stdio.h>
#include <conio.h>

void main()
{
   int array[10];
   int i, j, N, temp;

   int findmax(int b[10], int k);      /* function declaration */
   void exchang(int b[10], int k);

   clrscr();

   printf("Enter the value of N\n");
   scanf("%d",&N);

   printf("Enter the elements one by one\n");
   for(i=0; i<N ; i++)
   {
scanf("%d",&array[i]);

   }

   printf("Input array elements\n");
   for(i=0; i<N ; i++)
   {
printf("%d\n",array[i]);
   }

   /* Selection sorting begins */
   exchang(array,N);

   printf("Sorted array is...\n");
   for(i=0; i< N ; i++)
   {
printf("%d\n",array[i]);
   }

} /* End of main*/

/* function to find the maximum value */
int findmax(int b[10], int k)
{
  int max=0,j;
  for(j = 1; j <= k; j++)
  {
    if ( b[j] > b[max])
    {
max = j;
    }
  }
    return(max);
 }


 void exchang(int b[10],int k)
 {
   int  temp, big, j;
   for ( j=k-1; j>=1; j--)
   {

      big = findmax(b,j);
      temp = b[big];
      b[big] = b[j];
      b[j] = temp;
   }
   return;
 }

/*-----------------------------
Output
Enter the value of N
5
Enter the elements one by one
45
12
90
33
78
Input array elements
45
12
90
33
78
Sorted array is
12
33
45
78
90
-----------------------------------*/