Merged 2 sorting folders

This commit is contained in:
AnupKumarPanwar 2017-10-03 17:00:31 +05:30
parent ab2b2a58f0
commit a8e3dd3f60

View File

@ -1,39 +0,0 @@
#include <stdio.h>
// Recursive Function- It returns location of x assumiung array arr[l..r] is present, otherwise -1
int binarysearch(int arr[], int l, int r, int x)
{
if (r >= l)
{
int mid = l + (r - l)/2;
// If element is present at middle
if (arr[mid] == x) return mid;
// If element is smaller than middle
if (arr[mid] > x) return binarysearch(arr, l, mid-1, x);
// Else element is in right subarray
return binarysearch(arr, mid+1, r, x);
}
// When element is not present in array
return -1;
}
int main(void)
{
// give function an array to work with
int arr[] = {2, 3, 4, 10, 40};
// get size of array
int n = sizeof(arr)/ sizeof(arr[0]);
//set value to look for
int x = 10;
// set result to what is returned from binarysearch
int result = binarysearch(arr, 0, n-1, x);
// print out result
(result == -1)? printf("Element is not in the array")
: printf("Element is present at index %d", result);
return 0;
}