|시간 제한||메모리 제한||제출||정답||맞은 사람||정답 비율|
|5 초||128 MB||356||108||77||27.599%|
We were afraid of making this problem statement too boring, so we decided to keep it short.
A sequence is called non-boring if its every connected subsequence contains a unique element, i.e. an element such that no other element of that subsequence has the same value.
Given a sequence of integers, decide whether it is non-boring.
The first line of the input contains the number of test cases T. The descriptions of the test cases follow:
Each test case starts with an integer n (1 ≤ n ≤ 200 000) denoting the length of the sequence. In the next line the n elements of the sequence follow, separated with single spaces. The elements are non-negative integers less than 109.
Print the answers to the test cases in the order in which they appear in the input. For each test case print a single line containing the word non-boring or boring.
4 5 1 2 3 4 5 5 1 1 1 1 1 5 1 2 3 2 1 5 1 1 2 1 1
non-boring boring non-boring boring