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| #include <stdio.h>
int bin_search(int A[], int n, int key)
{
int mid,high,low;
low = 0;
high = n-1;
while(low<=high)
{
mid=(high+low)/2;
if(a[mid]==key)
{
return mid;
}
if(a[mid]>key)
{
high=mid-1;
}
if(a[mid]<key)
{
low=mid+1;
}
}
return -1;
}
int main()
{
int A[10] = {2,3,5,7,8,10,12,15,19,21}
int i,n,addr;
printf("The contents of the Array A[10] are\n");
for(i=0;i<10;i++)
{
printf("%d ", A[i]);
}
printf("\nPlease input a interger for search\n");
scanf("%d",&n);
addr = bin_search(A,10,n);
if(addr != -1)
{
printf("%d is at the %dth unit is array A\n ",n,addr);
}
else
{
printf("There is no %d in array A\n",n);
}
|
