wot's my mistake?

Question

//program to implement binary search
#include
#include
void main()
{
clrscr();
int a[10],min=0,max=9,mid=0,p=-1,num;
for(int i=0;i<=9;i++)
{ cin>>a[i]; }
cout<<"enter: ";
cin>>num;
while((max>=mid)&&(p==-1))
{ mid=(min+max)/2;
if(a[mid]==num)
{ p=mid; }
else if(a[mid]>num)
{ min=mid+1; }
else
{ max=mid-1; }
}
if(p>-1)
{ cout<<"at"< else
{ cout<<"sorry!"; }
getch();
}

i didn't find any answers good...infact i found my mistake and that was with lines...min=mid+1;...and another...max=mid-1;

Answer 1

Error in While Loop Condition i.e. while(max>=min && p==-1)
another errors in If statements.
correct Prog is :

//program to implement binary search
#include
#include
void main()
{
clrscr();
int a[10],min=0,max=9,mid=0,p=-1,num;
for(int i=0;i<=9;i++)
{ cin>>a[i]; }
cout<<"enter: ";
cin>>num;
while((max>=min)&&(p==-1))
{ mid=(min+max)/2;
if(a[mid]==num)
{ p=mid; }
else if(a[mid]>num)
{ max=mid-1; }
else
{ min=mid+1; }
}
if(p>-1)
{ cout<<"at"< else
{ cout<<"sorry!"; }
getch();
}

Answer 2

mid can not be int, because you are assigning a fraction value to mid variable(mid=(min+max)/2) and see C book written by K & R

Answer 3

int a[10],min=0,max=9,mid=0,p=-1,n...

Answer 4

i think mid should b declared as double as it does the operation
mid==(min+max)/2;