Binary Search program in c

#include<stdio.h>

void main()

{

 int n,i,l=0,h,m=0,f=0,sk,a[10];

 printf("Enter number of elements: ");

 scanf("%d",&n);

 h=n-1;

 printf("Enter %d integers :\n",n);

 for(i=0;i<n;i++)

     scanf("%d",&a[i]);

 printf("Enter the search value: ");

 scanf("%d",&sk);

 while(l<=h)

      {

    m=(l+h)/2;

    if(sk==a[m])

    {

     f=1;break;

    }

    else if(sk<a[m])

         h=m-1;

    else

             l=m+1;

      }

 if(f==1)

   printf("%d Found at Index %d",sk,m);

 else

  printf("Search Key Not Found");

}

Output 2:

Enter number of elements: 4

Enter 4 integers :

12

34

56

78

Enter the search value: 78

78 Found at Index 3

Output 3:

Enter number of elements: 4

Enter 4 integers :

12

354

567

2345

Enter the search value: 5

Search Key Not Found