Time limit per test: 0.5 second(s) Memory limit: 262144 kilobytes
input: standard output: standard
Let's consider a number sequence a1, ·s, aN. We call the continuous subsequence ai, ·s, aj, ·s, ak (1 ≤ i < j < k ≤ N) of the sequence a if at < at+1 for any i ≤ t < j and at > at+1 for any j ≤ t < k. In this case we call the of the hill. Similarly, we call the continuous subsequence a if at > at+1 for any i ≤ t < j and at < at+1 for any j ≤ t < k. In this case we call the of the dale.
Compute the height of the highest hill and the depth of the deepest dale in the given sequence.
The first line of the input file contains T (), the number of test cases. The test cases follow, occupying two lines each. The first of the two lines contains N (), the second the members of the sequence, separated by spaces. The sum of values of N over all test cases in the file does not exceed . The absolute values of the members of the sequences do not exceed .
The output file should consist of T lines and each line should contain two integers, the height of the highest hill and the depth of the deepest dale. If there are no hills or no dales, output 0 in the corresponding position.
4 4 1 6 3 2 1 2 5 7
2 3 4 5 6 7 8 9 10 9
Codeforces (c) Copyright 2010-2019 Mike Mirzayanov