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package Leetcode.Youtube;

public class BinarySearch {

public static int binarysearch(int[] arr, int value) {

int start = 0, end = arr.length - 1;

while (start <= end) {

int mid = start + (end - start) / 2;

if (arr[mid] == value) {

return mid;

} else if (arr[mid] > value) {

end = mid - 1;

} else {

start = mid + 1;

}

}

return -1;

}

public static void main(String[] args) {

int[] arr = { 1, 2, 3, 5, 6, 7, 8, 9, 12 };

for (int n : arr) {

System.out.println(binarysearch(arr, n));

}

System.out.println(binarysearch(arr, -2));

}

}