Searching an element in a sorted array
Submissions: 22403   Accuracy:


  Difficulty: Basic   Marks: 1

Given a sorted array arr[] of N integers and a number K is given. The task is to check if the element K is present in the array or not.

First line of input contains number of testcases T. For each testcase, first line of input contains number of elements in the array and the number K seperated by space. Next line contains N elements.

For each testcase, if the element is present in the array print "1" (without quotes), else print "-1" (without quotes).

1 <= T <= 100
1 <= N <= 106
1 <= K <= 106
1 <= arr[i] <= 106


5 6
1 2 3 4 6
5 2
1 3 4 5 6


Testcase 1:
Since, 6 is present in the array at index 4 (0-based indexing), so output is 1.
Testcase 2: Since, 2 is not present in the array, so output is -1.


** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Arpan Kundu
Author: akundusaltlake

If you have purchased any course from GeeksforGeeks then please ask your doubt on course discussion forum. You will get quick replies from GFG Moderators there.

Need help with your code? Please use, generate link and share the link here.

to report an issue on this page.