Search an Element Binary Search (Iterative)

Write a Program in C to Search an Element in the Array using Binary Search (Iterative)

#include<stdio.h>
#include<conio.h>
void main()
{
int a[10],start,end,mid,i,num,flag=0;
clrscr();
printf("Enter 5 Numbers\n");
for(i=0;i<=4;i++)
{
scanf("%d",&a[i]);
}
printf("Enter the element to be searched : ");
scanf("%d",&num);
start=0;
end=4;
mid=(start+end)/2;
while(start<=end)
{
if(a[mid]==num)
{
printf("Number (%d) found at position (%d)\n",num,mid+1);
flag=1;
break;
}
if(num>a[mid])
{
start=mid+1;
}
else
{
end=mid-1;
}
mid=(start+end)/2;
}
if(flag==0)
{
printf("\nDidnot find the number (%d)\n",num);
}
getch();
}