Binary Search

 int binarySearch(int *arr, int n, int x)

{

    //Write your code here

    int start=0;

    int end =n;

    

    

    //int x=25;

    //int arr[10]={10,12,13,15,20,25};

    

    while(start<=end){

        int mid=(start+end)/2;

        

        if(arr[mid]==x){

            return mid;

            

        }

        else if(arr[mid]>x){

            end = mid-1;

        }

        else 

        start=mid+1;

    }

    return -1;

}

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