Given a sorted and rotated array A of N distinct elements which is rotated at some point, and given an element K. The task is to find the index of the given element K in the array A.
Input:
The first line of the input contains an integer T, denoting the total number of test cases. Then T test cases follow. Each test case consists of three lines. First line of each test case contains an integer N denoting the size of the given array. Second line of each test case contains N space separated integers denoting the elements of the array A. Third line of each test case contains an integer K denoting the element to be searched in the array.
Output:
Corresponding to each test case, output the index of the element found in the array. If element is not present, then output -1.
Constraints:
1 ≤ T ≤ 100
1 ≤ N ≤ 107
0 ≤ Ai ≤ 108
1 ≤ K ≤ 108
Example:
Input:
3
9
5 6 7 8 9 10 1 2 3
10
3
3 1 2
1
4
3 5 1 2
6
Output:
5
1
-1
Explanation:
Testcase 1: 10 is found at index 5.
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.
| d_Coder00 | 163 |
| VivSisMMM | 152 |
| Astikeysingh | 148 |
| Reetu_Kumari_MIT2018056 | 132 |
| dungeon_master1299 | 126 |
| Pulkit__Sharma__ | 658 |
| Anirban166 | 531 |
| abducodes | 518 |
| Found_me | 494 |
| Sathvik Avasarala | 466 |
| blackshadows | 5331 |
| Ibrahim Nash | 5219 |
| akhayrutdinov | 5111 |
| mb1973 | 4929 |
| Quandray | 4559 |