C Program to Implement Binary Search

Program 1

// Binary Search in C
#include<stdio.h>
#include<conio.h>
int main()
{
    int ar[500],n,i,j,temp,beg,end,mid,f=0,s;
    
    xyz:printf("\nEnter limit for array");
    scanf("%d",&n);
    if(n>500)
    {
       printf("\nInvalid limit pls enter  between 1 to 500");
        goto xyz;
    }
    printf("\nEnter elements in array");
    for (i = 0; i <n ; i++)
      scanf("%d",&ar[i]);
      for(i=0;i<n;i++)
      {
           for(j=i+1;j<n;j++)
           {
                 if(ar[j]<ar[i])
                 {
                    temp=ar[i];
                    ar[i]=ar[j];
                    ar[j]=temp;
                 }
           }
        }

    printf("\nEnter an element for search");
    scanf("%d",&s);
        beg=0;
        end=n-1;
        while(beg<=end)
        {
             mid=(beg+end)/2;
             if(s==ar[mid])
             {
                     f=1;
                     break;
             }
             else
             if(s>ar[mid])
              beg=mid+1;
            else
            end=mid-1;
        }
        if(f==1)
        printf("\nSearching success");
        else
        printf("\nSearching not success");
         return 0;
}