Problems
Non-boring sequences
Non-boring sequences
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.
Input
The first line contains the number of test cases t. The descriptions of the test cases follow:
Each test case starts with an integer n (1 ≤ n ≤ 200000) denoting the length of the sequence. In the next line the n elements of the sequence follow. The elements are non-negative integers less than 109
.
Output
For each test case print a single line containing the word non-boring or boring.
Input example #1
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
Output example #1
non-boring boring non-boring boring