For Coding .

#include<stdio.h>
#include<conio.h>
int main()
{
int n,i,search,f=0,low,high,mid,a[20];
printf("Masukan jumlah data:");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
printf("Enter the number in ascending order a[%d]=",i);
scanf("%d",&a[i]);
}
printf("Masukkan data yang dicari !:");
scanf("%d",&search);
low=1;
high=n;
while(low<=high)
{
mid=(low+high)/2;
if(search<a[mid])
{
high=mid-1;
}
else if(search>a[mid])
{
low=mid+1;
}
else
{
f=1;
printf("obtainedin the position %d:",mid);
getch();
}
}
if(f==0)
{
printf("Data Tidak ditemukan");
}
getch();
}

running di Dev lebih hayut gan